1
Electrical Schematics Manual
IndygoChassis Numbers: 72594 - 72617
Coach Numbers: 2301 - 2324
Click here to go to the Table of Contents
Click here to go to the Index by Description
Click here to go to the Introduction
Click here to go to the Index by Drawing Number
LOW FLOORLOW FLOOR
2
HOW TO CONTACT THE GILLIG CORPORATION
Additional copies of this or any other Gillig publication may be purchased by contacting the Gillig PartsDepartment. We hope you find this manual user-friendly and we welcome your comments, questions, orsuggestions regarding this manual or your Phantom coach. You may contact the Gillig Corporation byphone, fax, or letter.
Telephone: Address:
(800) 735-1500 Toll-free Gillig Corporation(510) 785-1500 Local P.O. Box 3008(510) 887-0981 FAX (Parts) Hayward, CA 94540-3008(510) 785-1348 FAX (Service)(510) 785-6819 FAX (Marketing/Pubs)
LOW FLOORLOW FLOOR
3
Table of ContentsIntroduction.............................................. 7
Electrical Connector Listing......................... 13
Harness Listing ....................................... 20
Chapter 1-Powertrain ................................ 23Engine Control System................................................. 24Engine Power............................................................ 25Starting System ......................................................... 26Throttle Control ......................................................... 27Fast Idle .................................................................. 28Battery Disconnect Switch ............................................ 29Battery Fuses............................................................ 30Transmission Interface ................................................ 31Transmission Retarder................................................. 32Rear Gauges............................................................. 33Anti-Lock Brakes ........................................................ 34Senders and Switches ................................................. 35
Chapter 2- Vehicle Systems......................... 36Circuit Breakers ......................................................... 37Rear Electrical Panel .................................................. 38Charging System........................................................ 39Alternator Noise Suppression ........................................ 40Power Cables............................................................ 41Battery Fuse Panel ..................................................... 42
LOW FLOORLOW FLOOR
4
Fire Alarm ............................................................... 43Horn ...................................................................... 44Kneeling System........................................................ 45Destination Sign Power................................................ 46Fan Drive................................................................. 47Windshield Wipers ..................................................... 48
Chapter 3- H V A C .................................... 49HVAC Ladder Diagram ................................................. 50HVAC Schematic ........................................................ 51HVAC Interface .......................................................... 52Driver’s Heater/Defroster .............................................. 53Heater Booster Pump .................................................. 54Auxiliary Defroster Fan ................................................ 55Driver’s Booster Fan ................................................... 56Proheat Auxiliary Heater .............................................. 57
Chapter 4- Lighting ................................... 58Exterior Lamp Test...................................................... 59Tail & Marker Lamps ................................................... 60Turn Signals ............................................................. 61Reverse Lamps ......................................................... 62Brake Lamps ............................................................ 63Head Lamps ............................................................. 64Interior Lighting......................................................... 65Rear Step Lighting ..................................................... 66Map Light ................................................................ 67Dash Panel Lamps ..................................................... 68
LOW FLOORLOW FLOOR
5
Chapter 5- Doors...................................... 69Door Control ............................................................. 70Brake/Throttle Interlock................................................ 71Stop Requested System ............................................... 72Passenger Ramp........................................................ 73Passenger Ramp Interface ............................................ 74Passenger Ramp Interconnect........................................ 75Passenger Ramp Interface ............................................ 76
Chapter 6 - Dash ...................................... 77Dash Switches .......................................................... 78Two Way Radio Power ................................................. 79Fare Box Power ......................................................... 80Front Gauges ............................................................ 81Indicator Lamps......................................................... 82Low Air & Parking Brake Switches................................... 83Low Hydraulic Fluid Warning ......................................... 84Check/Stop Engine Lamp .............................................. 85Overhead Electrical Panel............................................. 86
Chapter 7- Miscellaneous ........................... 87Heated Mirrors .......................................................... 88Remote Controlled Mirrors............................................ 89PA System ............................................................... 90Electrical System Monitor ............................................. 91Crime Alarm ............................................................. 92
LOW FLOORLOW FLOOR
6
Chapter 8- Multiplex System........................ 93Communication Ring Diagram ....................................... 94PLC Power ............................................................... 95Multiplex System Inputs & Outputs .................................. 96Multiplex System Ladder Diagram................................... 97
Index (by Drawing Number) ........................ 123
Index (by Description) .............................. 124
LOW FLOORLOW FLOOR
7
This manual contains electrical schematics and other electrical system information for the Gillig LowFloor Transit Bus. The information pertains to standard installed equipment, optional equipment, andspecial features. All information and data in this manual are based on the latest product informationavailable at the time of publication. The Gillig Corporation reserves the right to make product changesat any time.
Service Bulletins and manual revisions may be published to supplement, supersede, or augment theinformation in this manual. The bulletins should be placed in the appropriate places in the manual forfuture reference.
IMPORTANT SAFETY INFORMATION
It is your responsibility to be completely familiar with the WARNINGS, CAUTIONS, and NOTICESdescribed in this Electrical Schematics Manual. These highlighted messages advise against the use ofspecific service methods or procedures which can result in personal injury, damage to the equipment, orunsafe operating conditions. It is important to understand that these messages are not exhaustive. GilligCorporation could not possibly know and evaluate all conceivable methods in which service might bedone, nor could they advise the service trade of all possible consequences of each method. Therefore,Gillig has not undertaken such a broad evaluation. Accordingly, anyone who uses a service procedureor tool which is not recommended by Gillig Corporation must first be thoroughly satisfied that neitherpersonal safety nor equipment integrity will be jeopardized by the service method selected.
The WARNINGS, CAUTIONS, and NOTICES appear at appropriate places of the manual in specialprint. It is critical to the safety of service personnel and the coach that these warnings are diligentlyobserved, especially while undertaking any of the procedures presented in this manual. WARNINGS,CAUTIONS, and NOTICES appear as follows:
Introduction
LOW FLOORLOW FLOOR
8
WARNING
Appears when an operating or service procedure, if not correctly fol-lowed, could result in personal injury or fatality.
CAUTION
Appears when an operating or service procedure, if not strictly observed,could result in injury to you or damage to the equipment.
NOTICE
Highlights an operating or service procedure which is essential forproper operation, maintenance, or repair.
VEHICLE IDENTIFICATION NUMBER (VIN)
The Vehicle Identification Number (VIN) and other information about the coach is found on theManufacturer’s ID plate which is located on the door of the main electrical panel above and to the left ofthe driver. The VIN serves as a legal identification number and appears on the vehicle certificate of titleand registration papers. You may be asked to provide the VIN to Gillig Service or Parts personnel inorder for them to properly investigate and answer your inquiry.
HOW TO USE THIS MANUAL
This manual simplifies the task of electrical troubleshooting on your Gillig Low Floor Coach. It iscustomized for your specific coaches, using the “As-Built” Bills of Material and associated ElectricalSchematics.
LOW FLOORLOW FLOOR
9
Code Color Code Color Code Color
BLK Black GRN Green PPL PurpleBLU Blue LT Light RED RedBRN Brown ORG Orange TAN TanDK Dark PNK Pink WHT WhiteGRY Gray YEL Yellow
The electrical schematics and wiring diagrams in this manual are arranged in chapters covering the typeof system in which they are employed. An extensive table of contents will help you identify the draw-ings or circuits included in this manual. A cross reference listing follows the Table of Contents tocorrelate drawing numbers with page numbers, so that you can find a drawing if you only know theengineering drawing number. Page numbers are consecutive thru the manual. Heavy tabbed dividerpages separate the chapters to assist your search.
Information in this manual is only for the Gillig Low Floor coaches designated on the front coverand again at the top of the Table of Contents page. Do not use this manual as a basis for troubleshooting electrical systems or circuits for any other Gillig coaches in your fleet.
WIRE COLOR IDENTIFICATION
Wire Color. Colors are abbreviated as follows:
TROUBLE SHOOTING EQUIPMENT
Volt-Ohmmeter (VOM). A volt-ohmmeter is a single test device in which the functions of both thevoltmeter and ohmmeter are combined. It may be used to check voltage, check for a short to ground,check for continuity in a circuit, or to check to verify a ground.
Voltmeter. A DC voltmeter is used to check the DC voltage to ground. There are two test leads: thenegative lead, which is connected to the ground side of the circuit; and the positive lead, which shouldbe connected to the hot side of the circuit.
LOW FLOORLOW FLOOR
10
Ohmmeter. An ohmmeter may be used to measure resistance between two points of a circuit.
CAUTION
An ohmmeter must only be used on de-energized circuits. An energizedcircuit may cause meter damage or result in inaccurate resistancemeasurement.
Jumper Wire. A jumper wire may be used in trouble shooting procedures to bypass certain circuitcomponents or circuit segments where an open is suspected. A jumper is a length of wire with clips orterminals used to connect two points of a circuit.
WARNING
Do not use a jumper wire to bypass high resistance loads, as this wouldshort to ground and may cause damage to the circuit and/or injury tomaintenance personnel.
TROUBLE SHOOTING PROCEDURESTrouble shooting is a systematic approach to solving problems. Because of the many components andconnections in an electrical circuit, it is necessary to follow a step-by-step procedure for an accuratediagnosis of any electrical problem.
First, verify the problem or complaint by operating the circuit in which the problem is suspected. Oncethe problem is identified and verified, then refer to the Service Manual and the Electrical Schematicsmanual to inspect the schematic for the circuit in question.
Next, trace the circuit and redraw it if necessary. This will help identify the connections, splices,grounds, and components in the problem circuit.
After tracing the circuit, systematically test for faulty components, connections, or grounds to identifythe problem.
Finally, when the problem is isolated and a particular element of the circuit is determined to be the causeof the problem, make the necessary replacement or repair. Then operate the circuit to verify the repair.
LOW FLOORLOW FLOOR
11
SHORT CIRCUITSMany electrical system problems are caused by short circuits. A short circuit is either a feed circuitwhich has been completed to ground before it reaches the intended operating unit or a ground circuit thatis grounded prematurely.
To diagnose a short to ground use a VOM to test for continuity to ground. First, disconnect the circuitfrom power and ground. Next, connect the VOM between the circuit and ground. There will be conti-nuity if the circuit is shorted to ground. To isolate the short, open elements of the circuit one at a timeuntil continuity is lost. The short is in the last element opened or in the segment of the circuit beyondthe last element opened. To pinpoint the short, test each element of the isolated segment.
A tripped circuit breaker or blown fuse usually indicates a short to ground. Use a VOM to isolate theshort. First, turn off all elements of the circuit receiving power through the circuit breaker or fuse anddisconnect all loads. Turn on power to the fuse, then connect one lead of the VOM to the power supplyside of the circuit protector and the other lead to ground. The VOM should indicate power. Next,disconnect the ground lead of the VOM and connect it to the load side of the fuse. If the VOM does notindicate voltage, the short is in the disconnected equipment. If the VOM indicates voltage, the short isin the wiring. To pinpoint the short, disconnect circuit elements one at a time until the VOM does notindicate voltage. The short will be in the segment connecting the last element.
OPEN CIRCUITSMany electrical system failures are caused by an open circuit. An open circuit is one in which powerflow stops because of an interrupted or incomplete circuit path. An open circuit is caused by an im-proper ground, a loose or broken wire, a broken connector, a poor terminal contact, an open or faultycomponent, or a fuse or circuit breaker opened because of a short or overload.
Testing to isolate an open circuit can be done by using a jumper wire to bypass a suspected open ele-ment. If the circuit operates with the jumper in place when the power is applied, then the open is in thesegment of the circuit which was jumped or bypassed.
Another procedure to pinpoint an open element in a circuit is to test for power along the circuit using aVOM. If the VOM indicates power at one point in the circuit, then is moved along to another point ofthe circuit and does not indicate power, the circuit is open between the two points.
A third test, again using a VOM, can be conducted to detect an open in a component. First disconnectthe component from the circuit. Then connect the leads of the VOM to the component. If there is nocontinuity, an open exists in the component.
LOW FLOORLOW FLOOR
12
WELDING PRECAUTIONSPrior to performing any welding operation on the coach, sensitive electrical components must be pro-tected from damage. The sequence below must be followed in the order shown or damage to the voltageequalizer, multiplexer, or any of the electronic control units (ECU’s) may result. When the weldingoperation is completed, the components must be reconnected in the reverse order of disconnection.
CAUTION
Ensure the following precautions are accomplished prior to weldinganywhere or anything on the coach, as permanent damage to electroniccomponents may result.
1. Place the main battery cut-off switch into the OFF position.
2. Disconnect the battery ground from the voltage equalizer.
3. Disconnect the battery cables from the batteries.
4. Disconnect the power connectors from the ECU’s and electronic equipment (ABS, engine,transmission, I/O DINEX multiplexing system, wheelchair ramp, destination sign, communi-cation equipment, voice annunciation system, communication network (such as SAE J1708,J1939, etc.), surveillance system, and other electronic devices.
5. Disconnect the main power fuse from the multiplexer circuit (located in the lower driversconsole).
The welding ground cable should be attached to a chassis member as close to the weld site as possible,consistent with good welding practices. Do not connect welding cables to, or weld on, control compo-nents. Protect components from heat, sparks, and spatter, while welding.
When welding is complete, reconnect the components in the reverse order of removal.
LOW FLOORLOW FLOOR
13
1 Varies Engine to Engine ECM Engine and Settee Area1D Deutsch 31 Engine to Engine ECM (Cummins) Engine and Settee Area3 WP 2-way Engine to Underseat Heaters Engine and Settee Area4 WP 3-way Engine to Curbside Heater Front Chassis5 WP 3-way Engine to Roadside Heater Front Chassis7 AMP 4-way Engine to Coolant Level Probe Engine and Settee Area8 WP 22-way Engine to Rear Elect Panel Engine and Settee Area8A WP 22-way Engine to Rear Elect Panel Engine and Settee Area8B WP 6-way Engine Spares Engine and Settee Area8C WP 4-way Engine to Reverse Lights Engine and Settee Area9 Amp 2-way Exit Door Panel to Door Lights RH Roof Duct10 WP 22-way Engine to Rear Run Box Rear Run Box Area11 DDC 2-way Engine to Inlet Air Temp Engine and Settee Area12 DDC 4-way Engine to Ambient Air Temp Engine and Settee Area14 Deutsch 31-way Engine to Ceiling Harness Engine and Settee Area14A Deutsch 31-way RH Ceiling to Ceiling Extension RH Roof Duct14B Deutsch 31-way RH Ceiling Extension to Engine Engine and Settee Area15 WP 2-way Engine to Coolant Probe (Cummins) Engine and Settee Area16 WP 2-way Engine to Boost Pump Engine and Settee Area17 Amp 2-way Engine to Air Dryer Engine and Settee Area17A WP 2-way Engine Spares Engine and Settee Area18 WP 3-way Engine to Hyd Level Probe Engine and Settee Area19 WP 3-way Engine to Rear Gauges Rear Run Box Area20 WP 2-way Engine to Fan Solenoid (Cummins) Engine and Settee Area20 Amp 8-way Engine to Fan Control Engine and Settee Area20A Amp 2-way Engine to Water Temp Probe Engine and Settee Area21 WP 2-way Engine to Fire Solenoid (Cummins) Engine and Settee Area21 Relay Socket 4-way Engine to Fire Solenoid Engine and Settee Area31 WP 2-way Engine Spares Engine and Settee Area31 WP 3-way Console to Left Headlight Headlight Channel32 WP 3-way Console to Right Headlight Headlight Channel35 WP 3-way Console to Foot Dimmer Switch Dash Area36 WP 2-way Console to Right Turn Foot Switch Dash Area37 WP 2-way Console to Left Turn Foot Switch Dash Area38 Amp 9-way Dash to Console Console Area39 WP 3-way Console to Left Turn Light Headlight Channel40 WP 3-way Console to Left Turn Light Headlight Channel49 Amp 9-way Dash to Console Console Area52 Deutsch 6-way Rear Run Box Rear Run Box Area56 WP 6-way Bulkhead Electrical Panel to Trans ECU Rear Bulkhead Electric Panel63 Amp 4-way Bulkhead Electrical Panel to ABS Relay Rear Bulkhead Electric Panel67 WP 6-way Bulkhead Electrical Panel to Trans ECU Rear Bulkhead Electric Panel71 Relay Socket Bulkhead Electrical Panel to Battery High Relay Rear Bulkhead Electric Panel71A Relay Socket Bulkhead Electrical Panel to Battery Balance Relay Rear Bulkhead Electric Panel71B Relay Socket Bulkhead Electrical Panel to Battery Low Relay Rear Bulkhead Electric Panel75 Amp 4-way Bulkhead Electrical Panel to ABS Relay Rear Bulkhead Electric Panel82 Relay Socket Bulkhead Electrical Panel to Engine Ignition Relay Rear Bulkhead Electric Panel
Conn. # Conn. Type Harness Description Location
Electrical Connector Listing
LOW FLOORLOW FLOOR
14
83 Relay Socket Bulkhead Electrical Panel to Trans Ignition Relay Rear Bulkhead Electric Panel84 Relay Socket Bulkhead Electrical Panel to Hyd Probe Relay Rear Bulkhead Electric Panel84A Relay Socket Bulkhead Electrical Panel to Low Hyd Oil Relay Rear Bulkhead Electric Panel86 WP 6-way Engine to Rear Lights Engine and Settee Area86A WP 2-way Engine to Decel Lights Engine and Settee Area87 WP 6-way Bulkhead Extension to A/C Engine and Settee Area88 Relay Socket Bulkhead Electrical Panel to Alternator Disable Relay Rear Bulkhead Electric Panel90 Relay Socket Bulkhead Electrical Panel to Starter Disable Relay Rear Bulkhead Electric Panel93 Amp 12-way Dash to Left Dash Panel Dash Area94 Amp 9-way Dash to Center Dash Panel Dash Area95 Amp 15-way Dash to Right Dash Panel Dash Area96 Amp 12-way Dash to Ignition Switch Panel Console Area96D Amp 6-way Dash to Ignition Switch Panel Console Area97 Amp 4-way Dash to Heated Mirror Switch Console Area98 Amp 3-way Dash to Door Control Switch Console Area99 WP 3-way Dash to Parking Brake Console Area100 Deutsch 6-way Dash to Front Diagnostics Dash Area101 Amp 15-way RH Ceiling to Dash Main Electric Panel102 Amp 15-way Main Electrical Panel to Dash Main Electric Panel103 Amp Mini Relay Socket Dash to Heated Mirror Relay Console Area112 Amp 3-way Dash to Driver Seat Console Area114 Relay Socket Dash to Ramp Power Relay Console Area115 Relay Socket Dash to PLC Power Relay Console Area117 Amp 15-way Main Electrical Panel to RH Ceiling Main Electric Panel117 WP 3-way Dash to Door Alarm Entrance Door Header117A WP 3-way Front Door to Door Alarm Entrance Door Header117B WP 3-way Door Alarm to Front Door Entrance Door Header118 Amp 2-way Dash to Map Light Switch Console Area119 Amp 15-way Main Electrical Panel to RH Ceiling Main Electric Panel120 Relay Socket Electrical Panel to Engine Stop Light Relay Main Electric Panel121 Relay Socket Electrical Panel to Engine Check Light Relay Main Electric Panel122 Relay Socket Electrical Panel to Fire Alarm Relay Main Electric Panel127 Amp 9-way Electrical Panel to Light Bar Main Electric Panel128 WP 3-way RH Ceiling to Throttle Pedal Dash Area128 WP 2-way Dash to Throttle Pedal Dash Area129 WP 3-way RH Ceiling to Throttle Pedal Dash Area130 WP 2-way RH Ceiling to LH Side Marker Light Front Cap131 WP 2-way Front Cap to Right Marker Light Front Cap132 Amp 6-way RH Ceiling to Destination Sign Front Cap133 WP 2-way Front Cap to Right Center Marker Light Front Cap134 WP 2-way Front Cap to Center Marker Light Front Cap135 WP 2-way Front Cap to Left Center Marker Light Front Cap136 WP 2-way Front Cap to Left Marker Light Front Cap137 WP 2-way Front Cap to Left Side Marker Light Front Cap138 Amp 2-way Main Electrical Panel to RH Front Stop Request RH Roof Duct139 Amp 6-way Front Door to Exit Door Entrance Door Header140A WP 2-way Main Electrical Panel to Ext Speaker Front Chassis141A WP 1-way Main Electrical Panel to Ent Door Ground Light Entrance Door Header141C WP 1-way Main Electrical Panel to Ent Door Ground Light Entrance Door Header141D WP 1-way Main Electrical Panel to Ent Door Ground Light Entrance Door Header
Conn. # Conn. Type Harness Description Location
LOW FLOORLOW FLOOR
15
141E WP 1-way Main Electrical Panel to Ent Door Ground Light Entrance Door Header142A WP 1-way Main Electrical Panel to RH Side Turn Light Entrance Door Header142B WP 1-way Main Electrical Panel to RH Side Turn Light Entrance Door Header143 Amp 2-way Main Electrical Panel to Kneel Solenoid Front Chassis144 Amp 3-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct145 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct145A Amp 3-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct146 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct147 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct148 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct149 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct151 Amp 6-way RH Ceiling to Speakers LH Roof Duct152 Amp 12-way Main Electrical Panel to Rear Door Exit Door Header153 Amp 2-way Main Electrical Panel to Raise Solenoid Front Chassis154 Amp 3-way Main Electrical Panel to Hold Solenoid Front Chassis156 Amp 2-way Main Electrical Panel to RH Stop Request RH Roof Duct157 Packard 2-way RH Ceiling to Power Relay Console Area158A WP 1-way Main Electrical Panel to Ramp Light Console Area158C WP 1-way Main Electrical Panel to Ramp Light Console Area159 Amp 3-way RH Ceiling to Diagnostic Switch Console Area160 Amp 4-way Dash to Console Console Area161 Packard 2-way Dash to Headlight Relay Console Area162 WP 2-way Dash to Driver Seat Console Area164 Amp 4-way Dash to Engine Test Switch Dash Area165 Amp 4-way Dash to Ramp Counter Front Chassis166 Amp 4-way Dash to Two-Way radio Radio Box167 Amp 15-way Main Electrical Panel to LH Ceiling LH Roof Duct169 Amp 3-way LH Ceiling to Light Ballast LH Roof Duct171 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct171A Amp 3-way LH Ceiling to Light Ballast LH Roof Duct172 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct173 Amp 3-way LH Ceiling to Noise Sensor LH Roof Duct174 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct175 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct176 Amp 3-way LH Ceiling to Noise Sensor LH Roof Duct177 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct180 Amp 4-way Dash to Driver Heater Dash Area181 Amp 12-way Dash to Driver Heater Dash Area182 Deutsch 6-way Dash to Left Wiper Bulkhead Dash Area182B Amp 6-way Wiper Bulkhead to Wiper Motor Dash Area183 Deutsch 6-way Dash to Right Wiper Bulkhead Dash Area183B Amp 6-way Wiper Bulkhead to Wiper Motor Dash Area184 Packard 4-way Dash to Wipers Dash Area185 Packard 6-way Dash to Wipers Dash Area186 Deutsch 12-way Engine to Trans Interface Engine and Settee Area189 Relay Socket Engine to Flag Panel Engine and Settee Area190 Relay Socket Engine to Flag Panel Engine and Settee Area191 WP 3-way Bulkhead Extension to Flag Panel Engine and Settee Area192 WP 2-way Console to Battery Disconnect Switch Battery Area193 WP 2-way Bulkhead Extension to Flag Panel Engine and Settee Area
Conn. # Conn. Type Harness Description Location
LOW FLOORLOW FLOOR
16
193 WP 3-way Console to Brake Pressure Switches Front Chassis194 WP 3-way Console to Brake Pressure Switches Front Chassis195 WP 1-way Console to Brake Pressure Switches Front Chassis196 WP 1-way Console to Brake Pressure Switches Front Chassis197 WP 1-way Console to Brake Pressure Switches Front Chassis198 WP 1-way Console to Brake Pressure Switches Front Chassis199 Amp 2-way Console to Horn Headlight Channel200 Amp 2-way Engine to Air Temp Probe Engine and Settee Area201 Amp 2-way Bulkhead Extension to Bulkhead Electrical Panel Rear Bulkhead Electric Panel203 WP 3-way Engine to Trans Power (Cummins) Engine and Settee Area203 Relay Socket Engine to Engine Power Relay Engine and Settee Area204 WP 2-way Engine to Auxiliary Heater Engine and Settee Area207 WP 6-way Engine to Fuel Gauge Engine and Settee Area207A WP 6-way Engine to Stop/Tail lights Engine and Settee Area208 WP 3-way Bulkhead Electrical Panel to Trans ECU Rear Bulkhead Electric Panel208A WP 3-way Bulkhead Electrical Panel to Trans ECU Rear Bulkhead Electric Panel209A WP 2-way Engine to Battery Switch Engine and Settee Area210 WP 2-way Engine to Trans Power Engine and Settee Area211 Amp 2-way Engine to Starter Engine and Settee Area211 WP 2-way Engine to Decel lights Engine and Settee Area212 WP 6-way Engine to Rear Cap Lights Engine and Settee Area215 Packard 2-way Electrical Panel to Ignition Relay 1 Main Electrical Panel215 WP 2-way Engine to Tail Light Rear Cap216 Packard 2-way Electrical Panel to Ignition Relay 2 Main Electrical Panel216 WP 2-way Engine to Right Reverse Light Rear Cap217 Packard 2-way Electrical Panel to Ignition Relay 3 Main Electrical Panel217 WP 3-way Engine to Right Stop Light Rear Cap218 WP 2-way Engine to Rear Right Turn Rear Cap221 WP 2-way Engine to Rear Left Turn Rear Cap222 WP 3-way Engine to Left Stop Light Rear Cap223 WP 2-way Engine to Left Reverse Light Rear Cap224 WP 2-way Rear Cap to Right Marker Light Rear Cap225 WP 2-way Rear Cap to Right Marker Light Rear Cap226 WP 3-way Rear Cap to Upper Right Stop Light Rear Cap227 WP 2-way Rear Cap to Center Marker Lights Rear Cap228 WP 2-way Rear Cap to Center Marker Lights Rear Cap229 WP 2-way Rear Cap to Center Marker Lights Rear Cap230 WP 2-way Rear Cap to Left Marker Light Rear Cap231 WP 2-way Rear Cap to Left Marker Light Rear Cap232 WP 3-way Rear Cap to Upper Left Stop Light Rear Cap234A WP 1-way Engine to Rear Right Turn Rear Cap234B WP 1-way Engine to Rear Right Turn Rear Cap235A WP 1-way Engine to Rear Right Turn Rear Cap235B WP 1-way Engine to Rear Right Turn Rear Cap238A WP 1-way Engine to Rear Left Turn Rear Cap238B WP 1-way Engine to Rear Left Turn Rear Cap239A WP 1-way Engine to Rear Left Turn Rear Cap239B WP 1-way Engine to Rear Left Turn Rear Cap245 WP 4-way Engine to Fuel Tank Level Sensor Center Chassis246 WP 1-way Engine to Rear Step Light Rear Chassis
Conn. # Conn. Type Harness Description Location
LOW FLOORLOW FLOOR
17
246G WP 1-way Engine to Rear Step Light Rear Chassis249 WP 2-way Chassis to RH Center Marker Light Center Chassis250 Diode Block Bulkhead Electrical Panel to Relay Panel Rear Bulkhead Electric Panel250 WP 2-way Chassis to LH Center Marker Light Center Chassis250A Diode Block Bulkhead Electrical Panel to Relay Panel Rear Bulkhead Electric Panel254 WP 2-way Main Electrical Panel to RH Side Marker Front Cap255 Amp 2-way RH Ceiling to Front Cap Marker Lights Front Cap256 Amp 2-way Main Electrical Panel to RH Ceiling Ballast RH Roof Duct257 VDO 3-way Rear Run Box Temp Gauge Rear Run Box Area257 Amp 2-way LH Ceiling to Light Ballast LH Roof Duct258 VDO 3-way Rear Run Box Oil Pressure Gauge Rear Run Box Area259 VDO 3-way Center Dash Panel to Fuel Gauge Dash Area260 Amp 2-way RH Ceiling to Drivers Fan Dash Area260 VDO 3-way Center Dash Panel to Oil Pressure Gauge Dash Area261 VDO 3-way Center Dash Panel to Water Temp Gauge Dash Area262 6-way Center Dash Panel to Speedometer Dash Area266 Amp 6-way Electrical Panel to Relay Module 1 Main Electrical Panel267 Amp 6-way Electrical Panel to Relay Module 1 Main Electrical Panel268 Amp 6-way Electrical Panel to Relay Module 2 Main Electrical Panel269 Amp 6-way Electrical Panel to Relay Module 2 Main Electrical Panel270 Amp 6-way Electrical Panel to Relay Module 1 Main Electrical Panel271 Amp 6-way Electrical Panel to Relay Module 2 Main Electrical Panel275 Amp 2-way Engine to Coolant Module Engine and Settee Area275A Amp 5-way Engine to Coolant Probe Engine and Settee Area301 WP 4-way Engine to Bulkhead Extension Engine and Settee Area301A WP 4-way Bulkhead Extension to Bulkhead Electrical Panel Rear Bulkhead Electric Panel305 WP 1-way Engine Spare Engine and Settee Area325 Relay Socket Engine to Fan Relay Engine and Settee Area328 WP 3-way Console to Farebox Console Area335 Amp Mini Relay Socket Dash to Fare Box Relay Console Area336 Amp 4-way Dash to Crime Alarm Console Area336 Amp 9-way Exit Door Panel to Door Controls RH Roof Duct400 Amp 2-way Main Electrical Panel to RH Aid Passenger RH Roof Duct401 Amp 15-way Bulkhead Electrical Panel to Bulkhead Extension Rear Bulkhead Electric Panel402 Amp 15-way Bulkhead Electrical Panel to Bulkhead Extension Rear Bulkhead Electric Panel403 Amp 15-way Bulkhead Electrical Panel to Bulkhead Extension Rear Bulkhead Electric Panel404 Amp 15-way Bulkhead Electrical Panel to Bulkhead Extension Rear Bulkhead Electric Panel406 Amp 15-way Bulkhead Electrical Panel to Relay Panel Rear Bulkhead Electric Panel407 Amp 15-way Bulkhead Electrical Panel to Relay Panel Rear Bulkhead Electric Panel408 Amp 15-way Bulkhead Electrical Panel to Relay Panel Rear Bulkhead Electric Panel450 Diode Block Bulkhead Electrical Panel to Diode Block Rear Bulkhead Electric Panel450 Relay Socket Main Electrical Panel to Heated Destination Sign Main Electrical Panel601 WP 6-way Engine to Rear Throttle Engine and Settee Area602 WP 6-way Engine to Rear Throttle Engine and Settee Area608 Amp 2-way LH Ceiling to Stop Request LH Roof Duct609 Amp 2-way LH Ceiling to Aid Passsenger LH Roof Duct610 WP 2-way LH Ceiling to Side Marker Light LH Roof Duct652 Relay Socket Bulkhead Electrical Panel to EPL Relay Rear Bulkhead Electric Panel653 Relay Socket Bulkhead Electrical Panel to Wait Light Relay Rear Bulkhead Electric Panel1939 Deutsch 3-way Engine to J-1939 Comm Engine and Settee Area
Conn. # Conn. Type Harness Description Location
LOW FLOORLOW FLOOR
18
1939A Deutsch 3-way Engine to J-1939 Comm Engine and Settee AreaA1 Amp 36-way Dash to A1 Module Console AreaA2 Amp 36-way Dash to A2 Module Console AreaB2 Amp 36-way Electrical Panel to B2 Module Main Electrical PanelB3 Amp 36-way Electrical Panel to B3 Module Main Electrical PanelC1 Amp 36-way Exit Door Panel to C1 Module RH Roof DuctCBL1A Deutsch 8-way RH Ceiling to Console I/O Modules Console AreaCBL1B Deutsch 8-way RH Ceiling to Overhead I/O Modules Main Electrical PanelCBL2A Deutsch 8-way RH Ceiling to Overhead I/O Modules Main Electrical PanelCBL2B Deutsch 8-way RH Ceiling to Exit Door I/O Modules RH Roof DuctCBL3A Deutsch 8-way RH Ceiling to Exit Door I/O Modules RH Roof DuctCBL3B Deutsch 8-way RH Ceiling to Rear Bulkhead Modules Rear Bulkhead Electric PanelCBL4A Deutsch 8-way RH Ceiling to Rear Bulkhead Modules Rear Bulkhead Electric PanelCBL4B Deutsch 8-way RH Ceiling to Console I/O Modules Console AreaD1 Amp 36-way Bulkhead Electrical Panel to D1 Module Rear Bulkhead Electric PanelD2 Amp 36-way Bulkhead Electrical Panel to D2 Module Rear Bulkhead Electric PanelD3 Amp 36-way Bulkhead Electrical Panel to D3 Module Rear Bulkhead Electric PanelLT-CON1-4 WP 2-way Engine to Compartment Lights Rear Run Box AreaPMS Deutsch 2-way Bulkhead Electrical Panel to I/O Power Module Rear Bulkhead Electric PanelRMP-CON Deutsch 6-way Dash to Ramp Dash Panel Controls Dash AreaSPARE Amp 6-way Dash to Console Console Area
Conn. # Conn. Type Harness Description Location
LOW FLOORLOW FLOOR
19
HARNESS CONNECTION TABULATION
A - Electrical compartment above driverB - Console area at driver’s leftC - Area below “A” postD - Dash areaE - Front cap and front doorF - Chassis, frontG - Roof, RH and rear doorH - Air tank closeoutJ - Engine and settee area
K - Chassis, centerL - Transmission areaM - Rear run box areaN - A/C compressor areaP - Roof, LHR - Rear bulkhead electrical panelS - Rear capT - Headlight channel
LOW FLOORLOW FLOOR
20
Harness Listing
Indygo, August 2003Chassis Numbers: 72594 - 72617
Coach Numbers: 2301 - 2324
Part Number Rev Description
13-46297-003 A Console Panel
13-46299-003 B Door Panel
13-47890-002 C Front Electrical Panel
13-48219N001 A Auxiliary Heater Control (ProHeat)
13-48220N000 A Auxiliary Heater Power (ProHeat)
13-50633-001 A Rear Electrical Panel
13-51250-002 A Rear Electrical Panel
50-23877-000 A Tail Lamp Jumper
50-26461-005 C Linear Fire Wire
50-26461-008 C Linear Fire Wire
50-29989-000 A Retarder Jumper
50-36981-000 L Transmission Interface
50-36981-003 I Transmission Interface
50-37103-000 N Engine/Trans Power
50-37769-002 G Tail Lamps
50-37825-000 F ABS Front Axle
50-37899-000 G Rear Cap
50-38157-000 C Ignition Switch Panel
50-38158-000 C Right Side Dash Panel
50-38159-000 B Left Side Dash Panel
50-38598-000 E Front Cap Marker Lamps
50-39450-005 C Rear Side Turn Signals
50-39453-006 A Bulkhead Extension
50-39466-001 G Pressure Switches
50-39468-000 C Third Brake Lamp
LOW FLOORLOW FLOOR
21
Part Number Rev Description
Harness Listing (continued)
50-39702-003 E Towing Connector
50-39773-000 C Exit Door Header
50-40026-000 E Door Lamps Jumper
50-40504-000 G Radio Harness 470CE
50-40731-000 B Center Dash Panel
50-40996-000 E Speedo Filter (VDO)
50-41113-000 C Transmission Shifter (40’)
50-41123-000 A Transmission Interface
50-41237-000 B Linear Fire Wire
50-41416-002 C Data System Jumper
50-41436-000 C Electric Windshield Wiper Jumper
50-41824-001 D Auxiliary Dash Fan
50-42156-000 B Door Lamp Jumper
50-42278-001 B Driver’s Heater
50-42360-001 A Microphone
50-43518-000 A Farebox Power
50-43674-000 B PA System w/Remote Volume Control
50-44200-009 A Bulkhead Extension
50-45969-000 A Auxiliary Heater Power (ProHeat)
50-45970-000 B Auxiliary Heater Control (ProHeat)
50-47765-000 D Rear Run Box
50-47767-002 C Engine, ISL
50-47900-001 C Head Lights/Turn Signal Lights
50-47901-000 A Head Lights/Turn Signal Lights
50-48974-003 H Main Dash
50-49028-000 A Speaker Control
50-49189-002 B Voltage Regulator, ISL
50-49202-001 B ABS Rear Axle
LOW FLOORLOW FLOOR
22
50-50669-000 A Auxiliary Brake Lights (4 Red)
50-50703-000 E Transmission, Main (Allison)
50-50703-001 E Transmission, Main (Allison)
50-50741-002 A Dash
50-51523-000 A Turn Signal/Parking Lamp
50-52321-000 B Ceiling, LH (Street) Side 40’
50-52322-000 B Ceiling, RH (Curb) Side 40’
Part Number Rev Description
Harness Listing (continued)
23
LOW FLOORLOW FLOOR
Chapter 1-Powertrain
P O W E R T R A I N
24
LOW FLOORLOW FLOOR
08/03
SENSOR
THROTTLEPOSITION
IDLEVALIDATION
SWITCH
SENSORPOSITION
THROTTLEREMOTE
OPTIONAL
SWITCHTHROTTLE
REMOTEOPTIONAL
FRONT ELECTRICAL PANEL
24V INPUT
C-A2-8 A2-8
PROCESSOR OUTPUT
B1-5C127-8
B1-3C127-7
PROCESSOR OUTPUT
CHECK ENG. LIGHT
STOP ENG. LIGHT
MAINTENANCE
SMART INDICATOR LIGHT BAR
B1-12
B1-4
WAIT TO START
PROCESSOR OUTPUT
PROCESSOR OUTPUTBAT-24V2RED
GRNNEG-12 C127-9
C127-1
GROUND OUTPUT
REAR ELECTRICAL
C-D1-1-12
C-D4-15 D4-20
C-D1-1-12
C-D1-1-3
C-D1-1-7
D1-3
D1-7
C-D1-1-12
C-D1-1-12
C-D1-1-8 D1-8
GROUND OUTPUT
24V INPUT
PANEL
GROUND OUTPUT
GROUND OUTPUT
C-D1-1-4
C-D1-3-1
D1-4
D1-17
C-D1-2-10 D1-16
C-D1-2-9 D1-15
GROUND INPUT
GROUND INPUT
GROUND INPUT
GROUND INPUTC-D1-2-3 D1-11
GROUND INPUTC-D1-3-4 D1-20
CB 63
24VIGN
C1-29
C1-27
C1-01
C1-03
C1-24
C1-46
THROTTLE POSITION +5V
STOP ENGINE LIGHT
CHECK ENGINE LIGHT
THROTTLE INTERLOCK
REMOTE PTO
IDLE VALIDATION IDLE SIGNAL
IDLE VALIDATION OFF-IDLE C1-25
C1-26
C1-30THROTTLE POSITION SIGNAL 128-B
128-A
128-C
C1-19THROTTLE POSITION RETURN
C49-B
C49-AJ1587 DATA LINK (+) C1-49
C1-50J1587 DATA LINK (-)
C49B-B
C49B-A
C49-E
C49-C
REAR DDR READER
C49B-C
C49B-E
FRONT DDR READER
- - ++
GROUND ATFRAME RAIL
GROUND STUD ATVOLTAGE REGULATOR
MAIN POWERCUTOFF SWITCH
BATTERYS
ENG-NEGBLK
ECM
BATTERY BOX AREA
FUSES LOCATED AT ENGINECOMPARTMENT, RH
REAR RUN BOX
FRONTOFF
REARREAR IGNITIONSWITCH
A05
C8-IFAST-IDLYEL
INTRLOCBLU
WARN-LTPPL
STOP-LTRED
C8-N
OVERRIDEWHT
C1-45 C10-U
KEY SWITCH INPUT
12VIGN
C10-O
C10-N
TPS-5VRED
TPS-RETWHT
TPSBLK
129-A
129-B
129-C
ON-IDLE
OFF-IDLEOFF-IDLGRN
ON-IDLBLU
REMOTE THROTTLE ENABLE
C1-36
C1-35 IDL-INCBLU
IDL-DECORG
C14-28
C14-27
DIAGNOSTIC DEC SW
DIAGNOSTIC INC SW
1587-POSWHT
1587-NEGBLU
C1-8VEHICLE SPEED SIGNAL157PPL
DIGITAL SPEED SIGNALSEE TRANS. SCHEMATIC
COOLANT LEVEL LOW SIGNAL
COOLANT LEVEL HIGH SIGNAL
COOLANT LEVEL RETURN
A37
A27
A49
A14 CLS-RETWHT
CLS-5VBLK
CLS-LOYEL
CLS-HIBLU
C7-A
C7-D
C7-B
C7-C
LOW COOLANTPROBE
+5VDC SUPPLY
A41FAN CLUTCH SUPPLY #1 C1D-N
SWITCHDIAGNOSTIC
C326-A
C326-D
C326-B
C326-C
GNDGRN
12V-IGNYEL
IGN-12VYEL
GNDGRN
C186-4
C186-9
C8A-M157PPL
IVAL-COMORG
REMOTE THROTTLE POSITION SIGNAL C1-09 TPS2WHT
ON
OFF
C10-S
C10-T
C10-P
REM-THROBLK
C8-RENG-IGNPINK
GNDGRN
WAIT TO START LIGHT C1-11 WAIT-LTYEL
C8C-D
STARTER DISABLE A01
GRAY
J1939 DATA LINK (-)
J1939 DATA LINK (+)
A44
A12 GRN
YELA02
J1939 DATA LINK (SHIELD)
J1939-A
J1939-B
J1939-C
SEE ANTILOCK ORTRANS SCHEMATIC
C8C-CBRAKERED
C1-33SERVICE BRAKE SWITCH
12VIGN
12V-IGNYEL
FAST-IDLYEL
INTRLOCBLU
WAIT-LTYEL
ENG-IGNPINK
REM-THROBLK
TPS2WHT
TPS-5VRED
TPS-RETWHT
TPSBLK
C14-20
C14-18
OFF-IDLORG
ON-IDLBLU
C14-19 IVAL-COMGRN
1587-NEGBLU
1587-POSWHT
TO ABS SYSTEMSEE ABS SCHEMATIC
1587-NEGBLU
1587-POSWHT
C14-5
C14-4
1587-POSWHT
1587-NEGBLU
TPS2-RETGRN
TPS2WHT
TPS2-5VBLU
REM-THROBLK
C8-V
BRAKERED
EPLORG
LOW FLUIDS LIGHT C1-04 C8-J EPLORG
IDL-DECORG
IDL-INCBLU
DIAGNOSTIC REQUEST C1-37 DIAG-REQBRN
DIAG-REQBRN
C8-L
C159-1
C159-3
C159-2IVAL-COMGRN
IDL-INCBLU
IDL-DECORG
ENGINE TEST/DIAG-REQ
GRNC164-2
24V-IGNRED
SEE TRANS SCHEMATICTO TRANSMISSION
1587-NEGBLU
1587-POSWHT
C8A-I
C8A-J C201-A1587-POSWHT
1587-NEGBLU
C201-B
FUSE 10A
FUSE 10A
FUSE 7.5A
BAT-3RED
FUSE 7.5A
FUSE 7.5A
BAT-2ARED
BAT-2RED
BAT-4RED
BAT-5RED
BAT-1RED
C1D-F
C1D-E
C1D-P
C1D-H
C1D-W
C1D-C
C1D-D
C1D-S
C1D-M
C1D-B
A50BATTERY POWER
BATTERY GROUND
BATTERY GROUND
BATTERY GROUND
BATTERY POWER
BATTERY GROUND
BATTERY GROUND
BATTERY POWER
POWER FOR TOOL
BATTERY POWER
A29
A40
A39
A14
A39
A20
A28
A30
ENG-NEG3BLK
ENG-NEG5BLK
ENG-NEG4BLK
ENG-NEG2BLK
ENG-NEG1BLK
BAT-1ARED
BAT-4ARED
BAT-5ARED
BAT-3ARED
24V-BATRED
PANEL
FRAME GROUND
C1-20 TPS2-RETGRN
TPS2-5VBLU
C1-10
REMOTE THROTTLE POSITION RETURN
REMOTE THROTTLE POSITION +5V
TPS2-RETGRN
TPS2-5VBLU
C14-12
C14-11
C14-10
C14A-19
C14A-20
C14A-18
C14A-12
C14A-11
C14A-10
C14A-28
C14A-27
C1D-A
C1D-J
C1D-OENGINE BRAKE ENABLE
ENGINE BRAKE 1 C1-34 B-34PPL
0-FUELWHT
C1-41INTAKE AIR HEATER #1 IN-HTR1PPL
AIR INTAKE GRID HEATER SOLENOIDAIR INTAKE GRID HEATER
ENGINE BLOCK GROUND
NEXT TO STARTER RELAY BOXMOUNTED IN ENGINE COMPARTMENT
GNDGRN
FUSE 125A
24V
INTAKE AIR HEATER #2 C1-31 IN-HTR2BLU
(PART OF FUEL FILTER)WIF SENSOR
TPS2-RETGRN
C1-40WATER IN FUEL SENSOR
WIF-SENRED
WATER IN FUEL LIGHT WIFYEL
C1-02
NEGGRN
SWITCH
STOP ENGINEOVERRIDE
(OPTIONAL)
OVERRIDEWHT
C96D-6SPARE 3WHT
OVERRIDEWHT
C14A-25C14-25
24VBATT
CB 47
C403-3
C402-7
C406-4
C402-12
C403-4
C403-7
C402-10
C406-14
C406-13
NEG-9GRN
157PPL
DIGITAL SPEED SIGNAL157PPL
C208-C
SEE TRANS. SCHEMATIC
BRAK-ENGRED
ENG-RUNWHT
FAST-IDLYEL
INTERLOCBLU
STOP-LTPPL
WARN-LTPPL
WAIT-LTYEL
DIAG-REQYEL
NEG-9GRN
NEG-9GRN
NEG-9GRN
STOP ENGINE OVERRIDE
C8-J
C8-J
C402-9 WIFYEL
C8-J
C403-9 EPLORG
C402-14 ENG-IGNPINK
OVERRIDEWHT
ENG-RUNWHT
ENG-RUNWHT
13-45115R016A
ENGINE CONTROL SYSTEM
25
LOW FLOORLOW FLOOR
09/03
REAR RUN BOX SWITCHFRONT IGNITION
A1-17 C-A1-3
LOAD
10A
INPUT POWERTO I/O PMS
IGNITIONPNK
ENG-IGNPNK
PN
KIG
NIT
ION
I.S.L.E.C.M.
BLK
EN
G-N
EG
TO NEGBATTERY POST
PNKENG-IGN
BAT-5RED
"DOWN" CHASSISRIDGID CONDUIT
ENGINEMTD.
DRIVERS CONSOLE
BELOW BATT. SWITCH
100A FROM BATTERYPOS +24V
BAT-7RED
RE
DB
AT
-4
BAT-6RED
BAT-3RED
BAT-2RED
BAT-1RED
BAT-4RED
FUSE 27.5A7.5A
FUSE 3
4-7.5AFUSE
10AFUSE 6FUSE 5
10A
ENG-NEG4BLK
ENG-NEG3BLK ENG-NEG8
BLK
ENG-NEG1BLKENG-NEG2BLKENG-NEG5BLK
EN
G-N
EG
BLK
INPUT
3085
8786
3085
86 87
3085
86 87
BAT-12V
BAT-24V
BAT-24V
NE
G-3
GR
NG
RN
NE
G-3
IGN
ITIO
NR
ELA
Y #1 (24V
)
24V IGNITION
TO C.B. 27 THRU 34
12V IGNITIONTO C.B. 12 THRU 16
YEL
RED
RED
OVERHEADELECTRICAL COMP.
B 1
RE
LAY
#2 (24V)
IGN
ITIO
NR
ELA
Y #3 (24V
)IG
NIT
ION
MODULE
RR-IGN
INPUT
A1-23 C-A2-23
RELAYSIGNITION
#1,2,3
START SELECTORCENTER IS OFF
FRONT STARTILLUSTRATED IN
OPTIONAL 4THPOLE ACTIVATESREAR THROTTLE
I.S.C.
TO I/O PMS MODULE
ELECTRICAL COMP.OVERHEAD
85
86NE
G-1
GR
N
BAT-24V
30
87
IGNITIONRELAYS
PINKIGN-CB
REDFR-IGN
BAT-24V1RED
BAT-24V
CB 44 (10A)
C102-15IGN-CBPINK PINK
IGN-CBC96-12C10-D9
C10-D1IGNITIONPINK
FRT-IGNRED
BAT-24VCB 58 (10A)
C96-3REDFR-IGN
C101-11 REDFR-IGN
FR-IGNRED
REDFR-IGN
C14B-17C14A-17REDFR-IGN
REDFR-IGN
FR-IGNRED
REDMASTER
WA
KE
GR
N
PLC-POSRED
ENG-BATCB 'ENGINE POWER"
25A
C8-P
C402-13
C402-14
C1D-S
C1D-M
C1D-D
C1D-A
C203-A
RED
REDENG-BAT
PLC-BATRED
C1D-C
C1D-B
C1D-P
C1D-HC210-A
C203-B
C1D-E
C1D-F
C1D-W
CA-39
CA-40
CA-05
CA-30
CA-29
CA-50
CA-38
CA-20
CA-28
CA-19
TOOL POWERTOOL POWER
C8-R
C102-14FR-IGNRED
IGNITIONORG
IGN
ITIO
NO
RG
C10-F8
C8A
-V
ORGRR-IGN
C10-G1
C14A-6RR-IGNORG
C14B-6RR-IGNORG
C101-14ORG
ORGRR-IGN
C404-4BAT-24V1RED
C203-C
C250-D
C250-E
C101-11PLC-POSRED
CB 63 (10A)
IGN-24V
13-48209R010A
ENGINE POWER
26
LOW FLOORLOW FLOOR
09/03
ENG-RUNECMC1D-J
WHT
ISC/ISL
REAR RUN BOX
ISL'03ECM
123 TAN
ENG-RUNWHT
5A ATC FUSE
S-MTR1RED
S
AB
BAT +CABLE
CRANKINGMOTOR
SOLENOID
FRONT STARTSWITCH
SWITCHROTARY IGNITION
OVERHEAD ELECT. PANEL
B1-33C127-1
INDICATORSTARTER
REAR STARTSWITCH
START SELECTOR SW.
"FRONT RUN" POS.ILLUSTRATED IN THE
NOTES:1. ENGINE ECM WILL OUTPUT A 24V POS SIGNAL ON WIRE STRT-DIS TO PREVENTACCIDENTAL STARTER ENGAGEMENT.
2. TRANS. ECU WILL OUTPUT A 24V+SIGNAL ON WIRE 123 IF NEUTRAL ISATTAINED.
3. PROCESSOR INPUT D3-18 WILLDISABLE ANY HEAVY LOADS DURINGENGINE CRANKING.
4. WIRES NEG-3 AND STRT-TMP BLUEARE JUMPERED TOGETHER IF A NON-OVERCRANK PROTECTED STARTER ISUSED.
RED
BULKHEAD PANEL
24V BATTERYC.B. 58
D2-2024V INPUT
C-D2-15
ST
RT
-TE
MP
BLU
NEG-3GRN
THERMAL SWITCH
24V INPUTD3-18C-D3-7S-MOTOR
RED
STARTER MAGNETICSWITCH 24V
R/H CEILING HARNESS
STARTER ASM.24V
CENTER POSITION DISABLES FRONT ANDREAR IGN./START
RE
DS
-MO
TO
R
GRAYSTRT-MAG
B 1
TO IGNITIONCIRCUITS SEEIGNITION SCHEM.
DRIVERS SIDE CONSOLE
DASH PANEL
C127-4
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
C127-2C127-3
C127-9C127-6
ENGINE COMPARTMENT
TRANS.
NEUTRALWHT
ALLISON
ENGINE COMPARTMENT
NEG-1GREEN
BRNNEUTRAL
GRAYSTRT-DIS
D4-2224V INPUT
C-D4-23
REDS-MOTOR
ENG-RUNWHT
STRT-TEMPBLU D1-12
GND INPUTC-D1-2-4
STRT-TMPBLU
STARTGRAY
STARTGRAY
D4-1724V INPUT
C-D4-3
STRT-MAGGRAY
BAT-24V3RED
D4-1C-D4-1
C-D4-510A OUTPUT
GRAYSTRT-MAG
STARTGRAY
40A ATC FUSE
@ COVEREDFUSE PANEL
SOFTWARE LOGIC.5. SEE LADDER DIAGRAMS FOR COMPLETE
ECU
RED
CB 20
BAT-24V C102-15 PINKIGN-CB
C96-12 PINKIGN-CB
PIN
KF
R-IG
N
C96-9 GRAYFR-STRT
C101-10
GRAYFR-STRT
C10-D5
REDBAT-24V1
GRAYFR-STRT
RR-IGNRED
RR-STRTBRN
C10-C6
ST
AR
TG
RA
Y
GRAYSTART
C1-49
BAT-24VRED
PINKIGN-CB
10A
STRT-BAT
C8A-VRED
BAT-24VC10-F8BAT-24VRED
C56-D
REDSTRT-BAT
REDSTRT-SOL
C8A-P
FR-IGNPINK
FR-STRTGRAY
BAT-24VBAT-24V4
CB 2310A RED
BAT-24VRED
BAT-24V4RED
NEG-12GRN
10AC404-4
C403-8
C14B-16 C14A-16
C8-V C403-3
C8A-Q C404-13
C8-K C404-14
C400-M2 C404-11
STRT-SOLRED
RE
DS
TR
T-S
OL
24V BATTERY
FR-STRTGRY
CV-6
24V-BAT5
13-48239R011B
STARTING SYSTEM
LOW FLOORLOW FLOOR
2711/01
THROTTLE CONTROL
13-40529R003A
28
LOW FLOORLOW FLOOR
08/03
FAST IDLE
REAR ENCLOSURE
DRIVERS FAST IDLE SWITCH
A2-9C-A2-9
BAT-24V
CB-17
DRIVERS CONSOLE
OVERHEAD ELECTRICAL PANEL
NOTES: 1. OUTPUT B1-26 IS ON IF FAST IDLE
2. IF FAST IDLE IS ON THEN BRAKE ANDTHROTTLE INTERLOCK ARE ON.
INPUT
INPUT IS ON. (A2-9)
C127-9
C127-1BAT-24V4 RED
NEG-12 GRNFAST IDLE
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-26
CB-23
BAT-24V
10A
10A
C-D1-1-7
C-D1-1-12
10A GND. OUTPUT
FAST IDLE
D1-7
ENGINEE.C.M.
C1-4YELLOWF-IDLE
F-IDLEYELLOW
C8-I
FST-IDLWHITE
BAT-24VRED
WHITEFST-IDL
BAT-24VRED
C96-8
C96-2
C102-13
BAT-24V1RED
ISL'03
C402-7
YELLOWF-IDLE
ENG-NEGBLACK
ISLE.C.M.ENGINE
C1-46
OPTIONAL EARLIER ISL
13-39943R013B
29
LOW FLOORLOW FLOOR
08/03
BATTERY DISCONNECT SWITCH
DRIVERS SIDE CONSOLE
CB 41/17
C49-4
BATTERY DISCONNECTMOUNTED MICRO SWITCHNORMALLY CLOSEDOPENS WITH DISCONNECTIN OFF POSITION
C49-2
BATTERY DISCONNECT SWITCH COMPARTMENT
NOTE:LACK OF INPUT AT A2-32WILL CAUSE AN OUTPUT TOENERGIZE THE ALTERNATORDISABLE RELAY.(SHUT-DOWN CHARGING SYSTEM)SEE CHARGING SYSTEM SCHEM.
BLA
CK
CH
RG
-SW
I
BA
T-24V
RE
DB
AT
-24VR
ED
BA
TT
-SW
IB
LAC
K
C102-13
BA
T-24V
RE
D
BAT-24VRED
AIR TANK/ELECTRICAL COMP.
24V INPUT
A2-32C-A2-32
*DENOTES CB #
*
W/REDUCED RELAYS
BA
BA
13-44015R004B
30
LOW FLOORLOW FLOOR
03/02
13-48272R000B
BATTERY FUSES
31
LOW FLOORLOW FLOOR
08/03
15A
RELAY 8-86PPLA123
A167BLUE
GREENA115
A125BLUE
GREENA105
D1-11
D1-17
D1-20
D1-13 C-D1-2-7
GREEN115
C208-B
167WHITE
C67-B
125WHITE
C67-E
105GREEN
C67-C
ALLISON WTEC IIIELECTRONIC CONTROL UNIT (ECU)
CV-19
CV-18
CV-5
CS-31
CV
-29
CV
-11
CS
-27
C56-AORG137
GREENC56-B
155
BLUEC208-A
A163
163
BLU
E
GR
EE
N15
5
CV
-1
CV
-16
CV
-32
CV
-17
CV
-6
C56-D
CV
-4
IGN-24V
CB 64
CV
-31
CV
-27
YE
LLO
W
WH
ITE
161
154
CV
-26
C-A2-24A2-24 PPLBRK-SW
C49-1
BRK-LTPPL
C102-13
RETARDRA2-5 C-A2-5
RETARDRGRNC96D-5
GRN
BAT-24VBAT-24V1RED
CONSOLE
151 142
CONSOLEDIAGNOSTIC
C100-B
C100-A CONN
RETARDERON/OFF
NOTES:
1. FRONT BRAKE LAMP SWITCH INPUT (A2-24) TURNS ON THE SHIFT INHIBIT OUTPUT.(D1-1)
2. D1-13 INPUT TURNS ON THE TRANS TEMP LAMP
3. D1-20 INPUT TURNS OFF THE "RETARDER APPLIED"INDICATOR OUTPUT (B1-17) AND COACH BRAKE LAMPSOUTPUT (D2-4). ie INPUT OFF=OUTPUT ON
4. D1-17 INPUT "SPEED SIGNAL" DISABLES EXITDOOR AND BRAKE INTERLOCK ETC AND TURNS ON
5. D1-11 INPUT TURNS ON THE CHECK TRANS LAMP
6. THE NEUTRAL SIGNAL INPUT AT (D2-20) PROVIDESNEUTRAL INTERLOCKS FOR (RAMP, FAST IDLE, KNEELING, ETC)
7. REVERSE INPUT (D1-10) TURNS OFF INTERIOR LAMPSOUTPUTS (B3-2, B3-3) AND BACK-UP CAMERA IF EQUIPPED.
8. RETARDER SWITCH INPUT (A2-5 FRONT SWITCH)(D3-19 RR BOX SWITCH) ENABLES THE RETARDER OUTPUT
CS
-30157
SPEEDOMETER
TRANS TEMP
INDICATORRETARDER
ZERO SPEED
CHECK TRANS.
SHIFT INHIBIT
RETARDER REQUEST
C56-C
C56-E WHITE154
A161YEL
BLUEA154
BRAKE SYSTEM SEE ANTI-LOCK
A155GREEN
GND INPUT
GND OUTPUT
GND OUTPUT
GND OUTPUTBRAKE SWITCH
A137PPL
C56-F
GND INPUT
GND INPUT
GND INPUT
10AA146YELLOW YELLOW
146
C-D1-2-2
12V INPUT
REVERSE
D1-10113RED
C-D2-15D2-2024V INPUT
NEUTRAL
PPLA123
A123PPL
C402-9TO NEUTRAL RELAY(SEE START SCHEM.)
CONNECT SWITCH WIRES W/O RETARDER SWITCH
DIAGNOSTICREAR RUN
CONN
BLU
WHTAB
REAR RUN BOX
"TRANS TEMP"
PROCESSOR OUTPUT
B1-27
"CHECK TRANS"
C127-1
C127-9
CB 23
GREEN
NEG-12
BAT-24V4RED
B1-40
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT
B1-17PROCESSOR OUTPUT
"RETARDER APPLIED"
PROCESSOR OUTPUT
"SPEED SWITCH"
B1-21
PROCESSOR OUTPUT
"RETARDER DISABLED"
B1-15
BLUE163
CS
-1
CS
-17
WH
ITE
BLU
E123T
AN
TA
N
BULKHEAD ENCLOSURE 1587-PO
SW
HIT
E1587-N
EG
BLU
E
BLUE1587-NEG
WHITE1587-POS
A157PPL
ENGINE 1587-NEGBLUE
WHITE1587-POS
A157PURPLE A
157P
UR
PLE
PURPLEA157
BULKHEADEXTENSIONHARNESS
R/H CEILING
A157PURPLE
1587-NEGBLUE
WHITE1587-POS
A157
PU
RP
LE
R/H
"B" P
OS
T C
OV
ER
A157
PU
RP
LE
(SPEED SIGNAL)
C95-2REDBAT-24V
BA
T-24V
RE
D
C49-2
BAT-24VRED
B
A
BAT-24VRED
C301A
-A
C301A
-D
C301A
-B
C301A
-C
136
PIN
K
PIN
K13
6G
RA
Y14
3G
RA
Y14
3
C301-D
C301-C
C301-B
C301-A
A143BBLACK
BLACKA143A
A136BRED
REDA136A
A143BBLACK
A143ABLACK
A136BRED
A136ARED
A136RED
A143BLACK
CB 61
RED
FROM 24 V BATTERY POST
FROM BATTERY NEG. POST
100A
10A
AIR TANK/ELECTRICAL COMP.
BAT-24V
CB 17
CHASSIS CONDUIT
PURPLEA157
BULKHEAD ENCLOSURE
123TAN
1587-NEGBLUE
WHITE1587-POS
FRONT BRAKELAMP SWITCH
BATTERY DISCONNECT COMPARTMENT
113W
HIT
E
C407-12
A113
RE
DC
67-D
1587-PO
S
1587-NE
G
A157
S-40E (DDC)
ISM CUMMINS
ISC/ISL CUMMINS
ECM CONNECTORCAVITY NO.'S
C1-27 C1-26C1D-21
C1-50 C1-49C1-8
C1-39 C1-17 C1-16
PU
RP
LE
BLU
E
WH
ITE
OUTPUT (B1-27)
INDICATOR OUTPUT (B1-21). INPUT ON W/BUS MOVING.
OUTPUT (B1-40)
(D1-2). INPUT ON = OUTPUT ON
(DURING AN ABS EVENT) TORQUE CONVERTERLOCK UP AND THE RETARDER ARE RELEASED.
10. WHEN 154 AND 161 MAKE CONNECTION
9. RETARDER SWITCH IS EITHER FRONT OR REAR (NOT BOTH)
C201-AC201-B C8A-I
C8A-J
C8A-M
C186-9
C186-4
C10-G
3
C10-G
5
C101-9
C101-6C101-8
C403-4C208-C
ON/OFFRETARDER
SEE NOTE 9
C10-H
4
C10-F8
C8-C
C8A-V
SPAR-INWHITE
WHITE
REDBAT-24V
SEE NOTE 9
C402-3
C404-4
SPAR-INWHITESPAR-IN
BAT-24V1REDRED
BAT-24V1
C14A-4
C14A-5
C14A-8 C14B-8
C14B-5
C14B-4WHITE
BLUE
A157 PPL1587-POS1587-NEG
BAT-24VCB 58
C-D3-11
RETARDER REQUEST
D3-19
RETARDER REQUEST
24V INPUTS
FRONT BRAKE SWITCH
BAT-24V1R
ED
SPAR-INW
HT
SEE NOTE 9
C94-8ECM
ABSECU
SEE NOTE 11
11. FUSES MTD. ON CONSOLE FOR 35 AND 40FT BUSFUSES MTD. IN BATTERY COMPT. ON 29FT BUS
SCHEMATIC
10A10A
A123
RELAY 8-86
C402-9
PU
RP
LE
RELAY 8-86
C1-E2 C1-C1 C1-C2S-50 (DDC) RELAY 8-86
C-D1-3-4
C-D1-3-1
C-D1-2-3
C-D1-1-3
C-D1-1-12
D1-3
ENG-NEGBLACK
C-D1-1-1
C-D1-1-12
D1-1
ENG-NEGBLACK
C-D1-1-2
C-D1-1-12
D1-2BLACKENG-NEG
C1-20 C1-10C1-27ISL'03 CUMMINS
13-38761R012A
TRANSMISSION INTERFACE
32
LOW FLOORLOW FLOOR
08/03
D1-2 BLUEA163C-D1-1-2
7 PSI SWITCH
164YELLOW
WHITE133135D
GREEN
133WHITE
ORANGE172
WHITE133
PPL/WHT173
BLUE171
133WHITE
4 PSI SWITCH
2 PSI SWITCH
TRANS E.C.U.
CT
-9
CT
-11
CT
-25
CB
A
CA
B
124E P
INK
164E Y
ELLO
W
135E G
RE
EN
C208-A
CS
-27
RETARDERRESISTANCE
RETARDERSOLENOID
AB
AB
AB
B
A
CT-19
CT-24
127 WHITE
116 YELLOWB
ATEMP SENSORRETARDER 138 ORANGE CT-28
135 GREEN
A
B 116N YEL
101 BLUE
ACCUMULATORSOLENOID
CT
-23
CV
-18W
HIT
E125
C67-EBLUEA125D1-20
BULKHEAD MOUNTED ELECTRICALCOMPARTMENT
BAT-24VRED
C-A2-5A2-5RETARDERGREEN
DRIVERS
RETARDER REQUEST
RETARDER APPLIED
LOW
MEDIUM
HIGH
NOTES:
1. THE RETARDER WILL APPLY IF:A. THE TRANS. IS IN LOCK-UP ANDB. THE THROTTLE IS RELEASED AND
D. THE ON/OFF SWITCH IS NOT TURNED OFF.
2. THE RETARDER AND LOCK-UP CLUTCH CAN BEDISABLED BY THE ABS OR IF WIRE 154 IS SHORTED TOCHASSIS OR SHORTED TO WIRE 161 (SEE ABS OR TRANS. SCHEMATIC)
3. THE RETARDER APPLIED INDICATOR AND COACH BRAKE LAMPSWILL BE ILLUMINATED IF THERE IS AN ABSENCE OF INPUTAT THE REAR ENCLOSURE. (D1-20)
C. FOOT BRAKE APPLICATION
SEE NOTE 4
4. CT= TRANS MAIN HARNESS (BLUE CONN)CV= VEHICLE HARNESS (GRAY CONN)CS= SHIFTER HARNESS (BLACK CONN)
GND OUTPUT
GND INPUT
24V INPUT
RETARDER DISABLED
PROCESSOR OUTPUT
B1-14
RETARDER APPLIEDC127-1
C127-9GRNNEG-12
BAT-24V4RED
B1-17
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT
CB 17
BAT-24V
C95
-2
RETARDERGREEN
L/H "B" POST
C102-13
BAT-24V1RED
RETARDRGREEN
RETARDER ON/OFFSWITCH OPTION 2
SWITCH R/H DASHRETARDER ON/OFF
RE
TA
RD
ER
GR
EE
N
BA
T-24V
RE
D
RE
TA
RD
RG
RE
EN
BAT-24VRED
BAT-24V4CB 23
RED
JUMPER 50-29989-000
163B
LUE
AIR
TA
NK
/ELE
CT
RIC
AL C
OM
PA
RT
ME
NT
NO. 3 LOCATIONSWITCH OPTIONRETARDER ON/OFF
WH
ITE
SP
AR
-IN
BA
T-24V
RE
D
C10-H4
C10-F8
REAR RUN BOX
C8-C
C8A-V
SPAR-INWHITE
BAT-24V1RED
BAT-24V1RED
SPAR-INWHITE
C402-3
C404-4
RETARDER SWITCH
24V INPUT
D3-19 C-D3-11 WHITEIN-D3-19
RETARDER SWITCH
IN-D3-19WHITE
MODULE
CB 58
REDBAT-24V OVER DRIVERS
SEAT COMP.
SIDECONSOLE
PANEL #1 OPTION 1
C96
-12
C96
D-5
PANEL #5 STD. LOCATIONSWITCH IGN. SWITCHRETARDER ON/OFF
BA
T-24V
RE
D
IGN-CBPINK
IGN
-CB
PIN
K
BAT-24V
CB 20
C102-15
ADDITIONAL NOTES:
5. INSTALL MAX. OF ONE RETARDER SWITCH.JUMPER BAT-24V RED WIRE TO RETARDERGREEN WIRE IF NO SWITCH IS INSTALLED.
6. SEE LADDER DIAGRAMS FOR COMPLETEPROCESSOR LOGIC.
7. JUMPER 171 BLUE WIRE TO THE 133WHITE WIRE WITH JUMPER P/N50-29989-000 TO ACHIEVE LOWSTAGE THROTTLE ACTIVATED RETARDER
(SEE NOTE 7)
PRESSURE SWITCHES MTD.ABOVE REAR AXLERETARDER MODULE MTD.NEXT TO TRANS. E.C.U.
10A
10A
15A
10A
C-D1-3-4
6-WAY DEUTSCH APPLIED HERESEE 50-39450-005&50-44200-001
13-38772R012A
TRANSMISSION RETARDER
33
LOW FLOORLOW FLOOR
08/03
CB 5115A
12V BATTERY
ENGINE COOLANTTEMP. SENDER
ENGINE OILPRESS. SENDER
C19-C
C19-B
C19-A
ENG-HRSPINK OIL-SW1
BLACK
IGN-24VRED
ENG-HRSPINK
GREENNEG-2
GREENNEG-2
GREENNEG-2
IGN-12VYELLOW
A50YELLOW
CO
MP
-LT
SY
ELL
OW
YE
LLO
WC
OM
P-L
TS
C10
-C8
PIN
KE
NG
-HR
S
GREENNEG-2
IGN-12V
6A
C10-D7 C8-H
C10-C4
C10-C2
COMP. LAMP SWITCH
ENGINE HOUR METER
COOLANT TEMP
ENGINE OIL PRESS.
YELLOWIGN-12V
YELLOWIGN-12V
OIL-GA2YEL
H20-GA2ORG
ENGINE OIL PRESSURE
C10-E2
C10-E8
SETTEEOUTRIGGERGROUND
YELLOWA50
D3-20C-D3-15
LOW ENGINE OILINPUT
(OPTIONAL)
S+
+S
H20-GA2ORG
OIL-GA2YEL
YE
LLOW
IGN
-12V
+-
C401-9YELLOWIGN-12V
A50YELLOWC8A-U
BULKHEAD ELECTRICAL COMPARTMENT
C404-3YELLOW
12V BATTERY
A50
C402-4C8-EOIL-SW1BLACK
OIL-SW1BLACK
OIL-SW1BLACK
C402-2IGN-24V2RED
IGN-24V
C8-B REDIGN-24V2IGN-24V
RED
OIL
-SW
BLA
CK
C450-E C450-E
SEE CHARGING SYSTEM
C402-15 D2-18C-D2-7
ENGINE COOLANTTEMP. SWITCH
C15-BHOT-ENGORANGE
C15-A
IGN
-24VR
ED
NORMALLY OPENCLOSES @ 220 F.
C8-S ORANGEHOT-ENG
ORANGEHOT-ENG
N/C
N/O
COM
SWITCHES ONPRESSURE RISE@ 14 PSIPRESSURE FALLINGAPPROX. 6 PSI
LOW OIL (ENGINE)
PROCESSOR OUTPUT
B1-6
COOLANT TEMP
C127-1
C127-9CB 23
GRNNEG-12
BAT-24V4RED
BAT-24V
B1-10
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT
AIR TANK/ELECTRICAL COMPARTMENT
NOTE:1. SEE LADDER DIAGRAMS FOR COMPLETEPROCESSOR LOGIC.2. CONNECTOR DESIGNATIONS WHEN EQUIPPED WITH VOITH TRANSMISSION
NOTE 2 NOTE 2
CB 42
CB 5010A
NOTE 2
CB 606A
10A
13-48246R001B
REAR GAUGES
34
LOW FLOORLOW FLOOR
09/03
18 BLACK35 BROWN
22 BLUE27B GRN/YELLOW
21 BROWN
16 BLACK33 BROWN
5 BLUE
4 BROWN27A GRN/YEL
BROWNGRN/YELBLUE
LEFT REARSENSOR
RIGHT REARSENSOR
BLA
CK
BR
OW
N
BLA
CK
BR
OW
N
LEFT REARMODULATORVALVE MODULATOR
RIGHT REAR
VALVE
GR
N/Y
EL
BR
OW
N
BLU
E
C200-1C200-2C200-12C200-11C200-10
C200-3C200-4C200-9C200-8C200-7
C201-8
BLU
E
BR
OW
NG
RN
/YE
L
MODULATORLEFT FRONT
LEFT FRONTSENSOR
BR
OW
NB
LAC
K
VALVE
RIGHT FRONT
VALVEMODULATOR
SENSORRIGHT FRONT
BROWNGRN/YELBLUE
32 BROWN15 BLACKC201-723 BROWNC201-2
BLA
CK
BR
OW
N
27B GRN/YELC201-1124 BLUEC201-10
34 BROWNC201-617 BLACKC201-56 BROWNC201-427A GRN/YELC201-97 BLUEC201-3
REARCHANNEL(GREEN)
(BLACK)
FRONTCHANNEL
(GRAY)
POWERHARNESS
FRAME MOUNTED ELECTRONICCONTROL UNIT
CB 43
CB 44
C186-12
C186-2C186-1 ABS-IGN1 YEL
ABS-IGN YELLOW
C186-11 NEG-1 GREENNEG-2 GREEN
C401-3C401-4
ABS-RET PURPLEBL-CODE BLUE
C186-5C186-10 C401-5
C401-6
1587-NEG BLUE1587-POS WHITE
C186-9C186-4
C206-B
C206-A
ABS-IGN1 YEL
ABS-IGN YEL
C10-G5
C10-G31587-POSWHITE1587-NEGBLUE
C52-A
C52-BBLUE
1587-POSWHITE1587-NEG
REARDIAGNOSTICCONNECTOR
WHITE1587-POS
1587-NEGBLUE
C14B-4
C14B-5 C14A-5
C14A-41587-NEG
1587-POS
BLUE
WHITE
1587-POSWHITE
BLUE1587-NEG
C101-8
C101-9
C100-A
CONNECTORDIAGNOSTICCONSOLE
1587-NEGBLUE
1587-POSWHITE
C100-B
D2-23C-D2-27
A154BLUE
YE
LLOW
A161
AB
S-IG
N
YE
LLOW
ABS-LTWHITE
MOMENTARY
12V IGNITION
12V IGNITION
BLINK-RBLUE
ABS-RETPURPLE
BLUEBLK-CODE
BLACK CONNECTOR
GREEN CONNECTOR
GRAY CONNECTOR
CV-27
CV-31
C56-C
C56-E
ALLISONECU
BULKHEAD MTD. ENCLOSURE
NOTES:
1. DIAGNOSTIC SWITCH INPUTCAUSES INPUT L.E.D. (D2-23)TO ACT ASREAR BLINK CODE INDICATOR
2. INPUT AT REAR DIRECTLY DRIVES OUTPUTAT INDICATOR LIGHT BAR FOR COACH OPERATOR
3. INDICATOR SHOULD GO ON WITH THE IGNITIONSWITCH THEN GO OUT. IT MAY STAY ON UNTIL THECOACH REACHES APPROX. 4MPH
4. IF THE INDICATOR REMAINS ON AFTER ROLLING4 MPH THEN A FAULT IS INDICATED.
5. TO TEST FOR "BLINK" CODES PRESS THE DIAGNOSTICSWITCH FOR ONE SECOND THEN RELEASE. THE CODESWILL CONTINUE UNTIL THE IGNITION IS CYCLED.
6. SEE SERVICE MANUAL FOR BLINK CODE DESCRIPTIONS.
DIAGNOSTIC SWITCH
12V INPUTC8A-HC8A-G
C8A-LC8A-K
C127-9
C127-1
OVERHEAD PANEL
BAT 24V
BAT-24V4 RED
NEG-12 GRN
CB 23
ANTILOCKPROCESSOR
SM
AR
T IN
DIC
AT
OR
B1-15
ATC-LT WHITEC186-4 C8A-N C404-6
C-D1-3-8 D1-22
GROUND INPUT
ATC-LTWHT
B1-16
TRACTION CONTROL
LIGH
T B
AT
OUTPUTS
C200-5C200-6
20 BLUE27C BROWN
ATC SOLENOIDVALVE
SHIELD
YELGRN
C186-8C186-6C186-7
J1939 DATA
TO ENGINEECM SEE
20 BLUE27C BROWN
J1939 INSTL.
TWISTED
TWISTED
161YELLOW
154WHITE
ATC-LTWHITE
SEE TRANSMISSIONINTERFACE SCHEMATIC
(W/ATC)
RELAY #1 (12V)ABS RETARDER
YELLOWABS-IGN
87
30
RELAY #2 (12V)ABS LAMP
86
12V
85 87a
ABS-JMPORG
86
12V
85
WHITEABS-LT
ABS-RETPURPLE
30
87a 87
10A
10A
10A
13-48273R006B
ANTI-LOCK BRAKES
35
LOW FLOORLOW FLOOR
09/01
13-39950R000E
SENDERS AND SWITCHES
36
LOW FLOORLOW FLOOR
Chapter 2- Vehicle Systems
VEHICLE SYSTEMS
37
LOW FLOORLOW FLOOR
08/03
10
#36 TRANS. POWER
CONSOLE MTD BATTERY BREAKERS
IGNITION
BREAKERSCIRCUIT
BREAKERS
12V
BATTERYCIRCUIT
12V
1010
1015
1010
1510
24V B
AT
TE
RY
25
#35 ENGINE POWER
24V B
AT
TE
RY
FUEL SENDER
ANTILOCK BRAKES
REAR STEP LAMPS
REAR TURN LAMPS
REAR MARKER LAMPSBACK-UP LAMPS
D3 MODULE POWER
ANTILOCK BRAKES
ENGINE COMPT. LIGHTS
1515
BREAKERSCIRCUITBATTERY24V
BREAKERSCIRCUITIGNITION24V
DRIVER POWERD2 MODULE OUTPUT
1015
1515
1010
615
6
AUX. HEATER
D1 MODULE POWER
D4 MODULE POWER
REAR IGNITION SWITCH
REAR INTERIOR LIGHTS
AIR DRYER
FRONT TURN/HAZARDS
FIRE ALARM, COMP LAMPHORN/STOP REQ. SIGN,
SPARE
"A1" MODULE POWER
DOOR SENSOR, EXIT
BREAKERSCIRCUIT
BREAKERS
IGNITION12V
CIRCUITBATTERY12V
1010
2025
1010
15 DOOR LAMPS
FRONT IGNITION/STARTSWITCH BATTERY POWER
INTERIOR LAMPS
I-O SYSTEM INPUT SWITCH
10
BREAKERSCIRCUITBATTERY24V
1010
1510
2015 POWER AT CONSOLE
CIRCUITIGNITION24V
BREAKERS
156
INTERIOR LAMPS
POWER IN OVERHEADI-O SYSTEM INPUT SWITCH
DASH SWITCHES
HEADLIGHTS
DASH POWER
2010 20
156
ENGINE IGNITION
TRANSMISSION IGNITION
1510
15
DASH SWITCHES
DASH SWITCHES & GAUGES
SPARE
MIRROR HEAT
DRIVER FAN1520
PA SYSTEM
SPARE
10
BULKHEAD MTD PANEL CIRCUIT BREAKERS
OVERHEAD ELECTRICAL PANEL MTD. BREAKERS
SPARE
RADIO POWER
DRIVERS HEATER
WINDSHIELD WIPERS
FAREBOX
SPARE RIGHT CEILING POWER
"C1" MODULE POWER
"B3" MODULE POWER
RAMP
I-O SYSTEM INPUT SWITCH
RH CEILING PULL CORDSSTOP REQUEST
LH CEILING PULL CORDSSTOP REQUEST
IDICATOR LIGHT BAR
6
1010
FAN DRIVE/LOW COOLANT MODULE
STOP LAMPS
SPARE
(REAR RUN BOX)
REAR BRAKE SWITCH
OIL PRESS/COOLANT TEMP SWITCHES
9
12
10
11
3
6
8
7
5
4
2
1
16
14
15
13
58
52
57
56
55
54
53
49
51
50
48
47
45
46
44
41
42
43
21
24
23
22
18
20
19
33
34
32
31
30
29
28
26
27
25
17
59
60
61
62
63
64
TAIL LAMPS
HYDRAULIC OIL COOLER
"B4" MODULE POWER/MARKER LIGHTS
10
1515
6
15
13-40689R015A
CIRCUIT BREAKERS
38
LOW FLOORLOW FLOOR
08/03
NETWORKNETWORK
2019
1817
2221
NETWORK
2324
NETWORK
2019
NETWORK
1817
2221 23
24
124
113FU
SEF3
210
F4
19F2
168
FUSE15
7
F7F8
614
F6
513
F1 F5
F6F7
F8FU
SE
FUSE
124
168
113
157
F3F4
F2
210
614
19
513
F5F1
2221
1817
2019
NETWORK
2324
124
FUSE 11
3
168
157 FU
SE
F3F4
210
F2
19
F7
614
F8
513 F6
F1 F5
FUSE
FUSE
NETW
ORK
23
NETW
ORK 24
2122
20 19
18 17
34 12
8 16 7
F7F8 F6
F3
10211
15 146
F4
91
135
F2
F5
F1
CB 52
CB 51
CB 50
CB 47
CB 49
CB 48
CB 46
CB 45
CB 44
CB 43
CB 42
CB 41
CB 62
CB 64
CB 63
CB 55
CB 61
CB 60
CB 59
CB 58
CB 56
CB 57
CB 53
CB 54
12V BATTSTUD
12 VOLTIGNITION
24V COIL
12 VOLTCIRCUIT BREAKERS
RELAY
24V BATT
NEG JUNCTION
CIRCUIT BREAKERS
STUD
24 VOLT
24V COILRELAYIGNITION24 VOLT
RE
LAY
1R
ELA
Y 2
Mod
el E
M70
DV
AN
NE
R
ABS
RELAYRETARDER
LIGHTRELAY
ABS
REAR ELECTRICAL PANEL MTD. BREAKERS
IGN
-12V
BA
T-12V
IGN
-24V
BA
T-24V
D1 D2 D3
D2
REAR ELECTRICAL PANEL
ECU 24VALLISON
D3D4
THE D1 MODULE MOUNTS OVER THE TRANS ECU
I/O C
ON
TR
OLS
PM
S M
OD
ULE
ENG-NEG ENG-NEG BAT-24V2 BAT-24V2 THRT-INT FST-IDL
RED
REDBAT-24V2
REDBAT-24V2
BRAK-ENGWHT
GRN105
WAIT-LTYEL
(BROWN)CON D1-1
CON D1-2
CON D1-3
167BLUE 1
YELBAT-12V2
12 BLU
BLUE
LO-FUEL
D1 1112 10
WHT
WHTBAT-LOWWHT 2
11BALANCE
3
LO-HYD10
(GREEN)
WHTATC-LT
125 4
9
5
8
1
REDBAT-24V2
12
GRN 1
BLK 155
12
BLUSTRT-TEMPPPLSTOP-LT
D1 1012 11
RED 2113
11
GRN 3115PPL/WHTWARN-LT
10
(BLACK)
WHTBAT-HI
4
9
5
8
RED
YELDIA-REQ
2BLUE
D1
163 BLK 11
3PPL
1112 10
137 RED 10 BLU
OUT-D1-5WHT 4
9
5
8
6
7
6
7
6
7
REDINTLT-CB
PPLINT-LTS3
YELWEB-BP
REDBAT-24V3
BLUSTRT-MAG
GRAYSTART
62
REDBAT-24V3WHTA/C-BP
4
3
8
7
WHTTRAN-LVL
1 5 33
35
34
36TURN-CB
BLUE
AC-FAIL
L-TURN
COOL
BAT-24V10
HTR-CB
OUT-D4-7
AC-RUN
HOT-ENG
BAT-24V10BAT-24V10
BLUWEB-HTR
REDBAT-24V3
WAT VALWHT
1410
PPLWEB-IN
REDBAT-24V3
12
11
16
15
WEB-RUNRED9 13
2218
WHTSTRT-DIS
REDINTLT-CB
20
19
24 YEL
23
INT-LTS4
RED
17 BLU 21 WHT
4 RED
HEAT WHT
WHTIN-D2-17
2
3 ORG
1 WHT
BAT-24V10BAT-24V10 BAT-24V10
NEG-12
NEG-12
3026
HTR-CB28 YEL
27
32
31 GRN
BLUEPASS-HTR
25
8 RED
29 GRN
12 RED
34
36
35
BLU
WHT
33
RED16 RED20
OUT-D2-4
NEUTRAL
REG-IGN
IN-D2-196
7 WHT
5 ORG
10
11 BRN
9 WHTOUT-BP
FLR-HTR14
WHT15
WHT13
18
19
WHT17
AISLE LIGHTS
IN-D3-21
BAT-12V2
BAT-24V10 BAT-24V10
TURN-CB
IN-D3-19
R-TURN
32
62S-MOTOR
MRKR-CB4 PPL
3 RED
BLU8
WHT7
MARKERS1 PPL
RED24
RED5
RED28
1410
STOP-CB
OIL-SW
PPL12
BLK11
YEL16
WHT15
36
STOP PPL9 ORG13
LO-FANS29
30
31BRK-SW
VENT
ABS-LT 22
WHT23
WHT21
26
PPL 27
WHT25NEG-12
33
34
35NEG-12GRN
GRN
28TAIL-CB
27NO-CHRG
26
25
18 22
23
24REV-CBGRN20
19
BRN
RED
21REV-LAMPGRN17
TAIL BRN
30
32BAT-12V2
31EM70-FUSE
YEL
BLU GRNNEG-12
PROP-PWR29YEL
NEG-12 GRN
DIN
EX
CO
NT
RO
LS C
OR
P.
MO
DE
L: T
2-D
IO-8
08S
-K6-
GL
AZ
US
A, C
A U
.S.A
.
GIL
LIG
P/N
: 13-
4136
1-02
8
MO
DE
L: T
2-H
CN
C-8
88-K
6-G
L
DIN
EX
GIL
LIG
P/N
: 13-
4136
1-02
7
CO
NT
RO
LS C
OR
P.
AZ
US
A, C
A U
.S.A
.
MO
DE
L: T
2-D
IO-8
88-K
6-G
LG
ILLI
G P
/N: 1
3-41
361-
028
DIN
EX
CO
NT
RO
LS C
OR
P.
AZ
US
A, C
A U
.S.A
.
IGNITION
BREAKERSCIRCUIT
BREAKERS
12V
BATTERYCIRCUIT
12V
106
1010
1510
1015
10
1515
156
10
CIRCUITBREAKERS
24VBATTERY
IGNITION24V
BREAKERSCIRCUIT
10
615
15
106
1510
10
#53 D2 I/O MODULE
#54 AUX COOLANT HEATER (OPTION)
#57 REAR INTERIOR LIGHTS
#58 REAR IGNITION
#59 REAR BRAKE SWITCH
#60 OIL PRESS/COOLANT TEMP SWITCHES
#61 HYD. OIL COOLER
#62 AIR DRYER
#63 ENGINE IGNITION
#64 TRANSMISSION IGNITION
#42 FAN DRIVE
#43 ABS BRAKES
#44 ABS BRAKES
#45 REAR STEP LIGHTS
#46 TAIL LIGHTS
#47 BRAKE LIGHTS
#48 TURN LIGHTS
#49 REVERSE/MARKER LIGHTS
#50 ENGINE COMPT. LAMPS
#51 SPARE
#52 D3 I/O MODULE
#41 FUEL SENDER
#55 D1 I/O MODULE
#56 D4 I/O MODULE
15
9
431 2 5 6
78
4
9
21 3
8 7
65
9
421 3 65
78
59-35121-001
MODEL: T2-DIO-168S-K7
AZUSA, CA U.S.A.CONTROLS CORP.
DINEX
13-50105R008A
REAR ELECTRICAL PANEL
39
LOW FLOORLOW FLOOR
09/03
ENGINE COMPARTMENT
87
86
87A
85
30
FIELDRED
NO
-CH
RG
OR
G
325AFUSE
BAT-24VCABLE
50VR VOLTAGE REGULATOR
DN50GENERATOR270A/28V
NOTES:
1. CHARGING ENABLE OUTPUT D2-3 WILL "TURN ON" IF:A. BATTERY SWITCH IS CLOSED (INPUT A2-32)B. OVER VOLTAGE IS NOT SENSED BY THE EM-70 (INPUT D3-21)C. ENGINE COMP. FIRE IS NOT DETECTED (INPUT B3-24)
SETTEE CROSSMEMBERMOUNTED 24V
2. CHARGING SYSTEM INPUT (D3-23) WILL TURN OFF THEINDICATOR (B1-39) AND ENABLE THE H.V.A.C. UNIT
"NO CHARGE"RELAY 12V
CH
AR
GE
YE
L
10A
C.B. 23
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-39
C127-9
C127-1
NEG-12 GRN
BAT-24V4 RED
NEG-1GRN
C-D3-27 D3-23
24V INPUT
ORGCHARGE
C401-2NO-CHRG
ORG
BULKHEAD REARPANEL
"NO CHARGE"
OVERHEAD ELECT. COMPARTMENT SIDE CONSOLE DASH
"B" P
OS
T C
OV
ER
BAT-24V4
RED
REDBAT-24V
C191-A
YE
LC
HA
RG
E
BA
T-24V
RE
D
BAT-24VRED
PIN
4R
EG
ULA
TO
R-4
PIN
5R
EG
ULA
TO
R-5
RE
GU
LAT
OR
-6P
IN 6
PIN
3
RE
GU
LAT
OR
-1
RE
GU
LAT
OR
-2
RE
GU
LAT
OR
-3
PIN
2
PIN
1
NE
G-1
GR
N
NE
G-1
GR
N
GRNNEG-1
OR
GR
EG
-IGN
2
RE
DB
AT
-24V
GR
NN
EG
-1G
RN
NE
G-1
RE
DF
IELD
RE
DB
AT
-24V
C401-1C191-BORG
REGORG
REG-IGNBAT-24V C-D2-12
C-D2-9 D2-3
10A OUTPUT
ORGREG-IGN
ORGNO-CHRG
BULKHEADEXTENSION
IGN
BA
T
GN
D
GN
D
FIE
LD
SE
NS
E
NE
G-1
GR
N
"REGULATOR POWER"
30
85
87
RELAY 12V
86
87A
NE
G-1
GR
NB
AT
-24VR
ED
RE
G-IG
NO
RG
RE
G-IG
N2
OR
G
ORGREG-IGN2
9A
LOA
D 10A
LOAD
D. ENGINE IS RUNNING (D4-22)
24V 19020415
DELCO REMY OF AMERICA
INCREASE
VOLT ADJ
1706
59A
13-48224R006B
CHARGING SYSTEM
40
LOW FLOORLOW FLOOR
11/01
ALTERNATOR NOISE SUPPRESSION
GENERATORDN50
CABLEBAT-24V
325AFUSE
BAT-24VCABLE
SETTEEGROUND
GROUNDRH FRAME
STUD STUDTO VOLTAGEREGULATOR
TO VOLTAGEREGULATOR
NIEHOFFALTERNATOR
GENERATORDN50
NIEHOFFALTERNATOR
13-43896-00113-43896-000
OR
SIDE VIEW
LOWFLOOR PHANTOM
SIDE VIEW
OR
150A
325A
+135D
125 VDC56UF XO
+125 VDC56UF XO135D
125A
NOTES:1. 13-43896-000 IS FOR THE LOWFLOOR INSTALLATION. REFER TO 13-38756R000 TO -R006 FOR THE DETAIL DRAWING.2. 13-43896-001 IS FOR THE PHANTOM INSTALLATION. REFER TO 10-32369-000 & -001 FOR THE DETAIL DRAWING.
13-41083-000 13-41083-000
13-43896-000C
41
LOW FLOORLOW FLOOR
08/03
NUTS TO:32 FT. LBS.
TORQUE ALTERNATORPOWER CABLE
22ALTERNATOR (OIL COOLED)270A @28V
IMPORTANT:CLEAN CABLE TO FRAME
TORQUING THE BOLT.COPPER SHIELD BEFOREAPPLY A THIN COAT OFCONTACT SURFACES THEN
TO: 55 FT. LBS.
POWER CABLETORQUE STARTER
24V STARTER
32 FT. LBS.NUTS TO:
25REAR JUMP STARTCONN. (IF USED)
INLET HEATERRELAY24V
TORQUE POWERCABLE NUTSTO: 100 IN LBS.
2921
AT ENGINE
AIR INLET HEATERISC/ISL ENGINETO CUMMINS
TO REAR PANEL12V
TO
RE
AR
PA
NE
L24V
TO
H.A
.V.C
.
RIDGID CHASSIS CONDUITS
TO 20 FT. LBS.TORQUE GND STUD NUT
1 REQ'D
TORQUE INSULATED
34
140 IN. LBS.NUTS TO:POWER STUD
140 IN. LBS.NUTS TO:FUSE HOLDERTORQUE BATTERY
2 REQ'D
22
10APPLY A THIN COAT OFCOPPER SHIELD BEFORETORQUING THE BOLT.
1 REQ'D 2230
120 IN. LBS.
TORQUE BATTERYFUSE HOLDER
140 IN. LBS.
31CLEAN CABLE TO FRAMECONTACT SURFACES THEN
IMPORTANT:
NUTS TO:
34
TORQUE EQUALIZERSTUD NUTS TO:
22
33
13 122 REQ'D
14
32 FT. LBS.
TORQUE BATTERYSWITCH NUTS TO:
APPLY A THIN COAT OFCOPPER SHIELD BEFORE
2@BAT-24V (FUSE HOLDER)1@BAT-24V (EQUALIZER)
32
FRONT JUMP STARTCONN. (IF USED)
CONTACT SURFACES THENCLEAN CABLE TO FRAME
2726
BA
T-12V
BA
T-N
EG
BA
T-24V
CONNECTIONS2 EQUALIZER 21
19 EA.
50-37082-002
50-37082-001
PART NUMBER
BATTERY CABLES 4/0 (1/2 POS 3/8 NEG)
50-45662-007
50-37096-00150-45662-006
INDICATES THAT THE LUG WAS CRIMPED THENSOLDERED. EXAMPLE: 50-37096-001S
NOTE: ADDING AN "S" TO THE END OF THE P/N
13
14
33
1112
ITEM
BATTERY JUMPER (SERIES CONN)
24V BATTERY CABLE (FUSE TO DISCONNECT)24V BATTERY CABLE (BATT TO FUSE)
DESCRIPTION
12V BATTERY CABLEBATTERY NEG. CABLE
20
17
28
23
24
18
19
16
140 IN. LBS.NUTS TO:FUSE HOLDERTORQUE BATTERY
22 1 REQ'D
34
2 REQ'D
125A
100A
150A
325A
1 REQ'D
R
F 2
OVERHEAD ELECTRICAL PANEL
21
3
24V12V
GN
D
1 REQ'D
2 REQ'D435
2
24V
5
100A
12V100A
6
DRIVERS CONSOLE
TR
AN
S
EN
GIN
E
8D 12V
1@POS,352@12V 1@NEG,
500A FUSE
NEG
NUTS TO 200 INCH LBS.TORQUE BATTERY
POS
8D 12VNEG
POS
9
11 8
LOAD
24VBATT
12VBATT
LOAD
EQUALIZERBATTERY
24 VOLT EQUALIZER FUSE CABLE12 VOLT EQUALIZER FUSE CABLE
FRONT JUMP START NEG CABLEFRONT JUMP START POS CABLE
REAR JUMP START NEG CABLEREAR JUMP START POS CABLE
50-43623-00050-43988-00150-43988-000
50-19797-274
50-19797-18050-19797-26542-21245-02542-21245-02450-43623-01442-21245-02342-21245-02953-27097-00353-27097-002
28
32313029
23
27262524
2221
20
AIR INLET HEATER CABLE
JUMP START CABLE ASM.
AIR INLET HEATER CABLE
ALTERNATOR POS CABLE
JUMP START CABLE ASM.
BOOT (LARGE) REDBOOT (SMALL) RED
SEE BILL OF MATERIAL11
PART OF ITEM 32PART OF ITEM 32SEE BILL OF MATERIALPART OF ITEM 25PART OF ITEM 25
9 5
1
24V "DOWN CHASSIS" POWER CABLE
24V CONSOLE POWER CABLE12V CONSOLE POWER CABLE
12V "DOWN CHASSIS" POWER CABLE
24V OVERHEAD POWER CABLE12V OVERHEAD POWER CABLE
EQUALIZER 12V POWER CABLEEQUALIZER 24V POWER CABLE
53-27097-010
53-27097-008
50-19797-267
50-52231-00350-52231-001
50-25352-017
50-19797-130
50-37201-005
50-37833-00050-37833-001
50-37083-00150-37083-00850-37083-007
50-37292-005
18
19
17
3435
89
161510
56
4
BOOT (SMALL) YELLOWBOOT (LARGE) YELLOW
ALTERNATOR NEG CABLEENG./STARTER GND.
40 FT.35 FT.
RADIATOR TO ENG. GND.
STARTER 24V POS CABLE
EQUALIZER GND. CABLE
OVERHEAD GND. CAB.E
50-52231-00250-52231-000
PART NO.
50-37292-00450-37292-003
23
1
ITEM DESCRIPTION
35 FT. 40 FT.
5
EITHER 35 OR 40 FT.2
1
2
2
6
NOT SHOWN
1
1
1
1
1
11
1
CHOOSE ONE ONLY
NOTES
11
11
QTY
1
PART OF ENG. HARN.PART OF ENG. HARN.
222 REQ'D
13-38783R036A
POWER CABLES
42
LOW FLOORLOW FLOOR
08/03
SEE DETAIL 'C'
SEE DETAIL 'A'
SEE DETAIL 'B'
NOTES 1,3
NOTE 1,2NOTE 1,2
BUSBAR STUD
NOTE 4
TYP. 5 PLCS.
325AMP 150AMP 100AMP 125AMP
24V-
BAT
24V-
BAT
STAR
TER
ALTE
RNAT
OR
REAR
PANE
L
JUMP
STAR
T
24V-B
AT TO
H.V.
A.C.
REAR
PANE
L12
V-BAT
TO
12V-
BAT
DO NOT USE AIR TOOLS
TORQUE FUSES/CABLESTO 140 IN/LBS
PREH
EAT
ISC/
ISL
ITEM PART NUMBER DESCRIPTION QTY REMARKS
1
51-19332-325 325A FUSE
2
51-19332-150 HVAC FUSE
3
51-19332-100 100A FUSE
4
13-51962-000 COPPER BUSS BAR (24V)
5
6
7
8
51-21794-005
9
10
11
12
13
14
15
16
ALT./HVAC/REAR PANELCABLES
COPPER BUSS BAR COPPER BUSS BAR
12V-BAT/REAR PANEL CABLESSTARTER/24V-BAT/JUMP START
24V
-BA
TT
ER
Y
ALT
ER
NA
TO
R
JUM
P S
TA
RT
(O
PT
.)
HV
AC
TO
RE
AR
PA
NE
L
TO
RE
AR
PA
NE
L
12V
-BA
TT
ER
Y
DETAIL 'A' DETAIL 'B'
DETAIL 'C'
13-52790-000 REAR BATTERY/FUSE PANEL ASM.
13-52251-000 FUSE HOLDER ASM.
13-51968-000 CABLE CLAMP/HOLDER
24V STARTER RELAY & PREHEAT RELAY
51-25517-010 VOLTAGE REGULATOR
13-51962-001 COPPER BUSS BAR (12V)
13-51174-001 FUSE HOLDER COVER
54-12550-006 5/16"-24 S.S. HEX NUT - NYLOCK
54-30880-007 5/16" S.S. FLAT WASHER
54-12540-005
1/4" S.S. FLAT WASHER
1/4"-20 S.S. HEX NUT - NYLOCK
17
18
54-30880-006
W/DELCO ALT. ONLY
19
#10-24 x 1 FH PHILLIPS SCREW20 54-14246-07Z
1/4"-20 x 3/4" S.S. HEX HEAD BOLT21 54-13113-075
1/4" S.S. LOCK WASHER22 54-13112-041
#10-24 x 3/4" S.S. PAN HEAD SCREW54-13119-076
#10 S.S. FLAT WASHER54-13112-032
24V
-BA
TT
ER
Y
UPPER & LOWER
ST
AR
TE
R(N/
A W/AIR
STAR
T)
ISC
/ISL
PR
EH
EA
T
51-19332-125 125A FUSE
SHIELD TORQUE TO 140 INCH LBS.
4. APPLY ALL DECALS/LABELS TO PANEL WHERE INDICATED PRIOR TO INSTALLING CABLES.
TORQUE TO 140 INCH LBS. 2. INSTALL BUSS BAR, FUSES, CLAMP, CABLES, NUTS & WASHERS IN THE SEQUENCE INDICATED.
1. LIGHTLY COAT CABLE CONNECTION, IN CURRENT PATH, DURING ASSEMBLY WITH COPPER
3. INSTALL SMALL CABLE, WASHER & NUT OVER 1/4" STUD AND TORQUE TO 85 INCH-LBS.
LOWFLOOR CABLE/FUSE INSTALLATION PROCEDURE
NOTES:
DECAL, FUSE RATING - 150A FUSE59-52396-001
13-52393-000 SCREW COVER
QTY QTY QTY QTY QTY
W/N
IEH
OFF
ALT
.
W/D
ELC
O A
LT.
W/IS
C O
R IS
L EN
G.
W/S
-50
ENG
INE
W/H
EATE
R O
NLY
W/H
EATE
R &
A.C
.
QTY
W/A
IR S
TAR
TER
QTY
W/E
LEC
. STA
RTE
R
6A 59-52396-000 DECAL, FUSE RATING - 325A FUSE
51-19332-080 HVAC FUSE
7A59-52396-004 DECAL, FUSE RATING - 80A FUSE
8A 59-52396-003 DECAL, FUSE RATING - 100A FUSE
59-52396-002 DECAL, FUSE RATING - 125A FUSE14A
59-52394-00023
DECAL CABLE INDENTIFICATION
STAN
DAR
D B
OM
ITEM
QTY
1
1
59-52394-001 DECAL CABLE INDENTIFICATION
1
1
1
2
1
1
1
1
1
1
12
12
0 1
1 0 0 1
1
1
1
1
2
2
4
4
4
1
1
1
6
6
4
2
2 2
2
13-5
2228
-001
2
3
4
5
6
7 8
109
20
12
13
15
16
12
13
212216
19 17
1533
16
111
2
3
16
153
111
2
15 16
4
1719
14
6A
8A7A
23
18
1
14A
24V 19020404
DELCO REMY OF AMERICA
INCREASE
VOLT ADJ
50VR
13-52228R001D
BATTERY FUSE PANEL
43
LOW FLOORLOW FLOOR
08/03
FIRE ALARM
8785 86
30
FIRE
OVERHEAD PANEL
ABB A
ABAB
AB
AB
C14A-9
128BBLK
BLKA128
C14B-9
C119-2BLK128
128BLK
GRNNEG-1
CB 24 BELL
BAT-12VYELLOW
BLK128
128BLK
YELLOWBAT-12V
BATTERY12V
FIREWHITE
RT. CEILINGHARNESS
LINEAR FIREDETECTION WIRE
ENGINE COMPARTMENT
RELAY 1-2 FIRE ALARMINPUT RELAY
OPERATION: EXCESSIVE HEAT WILL SHORT THE LINEARFIRE DETECTION WIRE AND COMPLETE THE NEGATIVESIDE OF THE CKT. FOR THE 1. FIRE BELL 2. FANFIRE RELAY AND 3. THE FIRE INPUT RELAYONCE DETECTED BY THE INPUT (B3-24) THEN THE SYSTEMPROGRAM LATCHES . AND 1. DISABLES: CHARGING SYSTEM,2. DISABLES HVAC , 3. TURNS ON EMERGENCY FLASHERS
INPUT
85
86 30
87 87A
A50YEL
PP
LF
IRE
1
REDFIRE
FAN FIRERELAY
BATCB 50
12VA50YEL
C8A-U
REAR ENCLOSURE
C-B3-31B3-24
12V
ELE
CT
RO
NIC
FA
NC
ON
TR
OLLE
R
GRN
E
FBLU
YELA50
C404-3
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-46
C127-9
C127-1
NEG-12 GRN
BAT-24V4 RED
CB 23
BATTERY24V
WITH VOITH
WITH ALLISON
10A
10A
CB 51BAT12V
13-48232R003A
44
LOW FLOORLOW FLOOR
05/03
HORN
10A
OVERHEAD ELECTRICAL
STEERING
HORN BUTTON
GROUNDCOLUMN
HORN-SW
COMPARTMENT
WHITE
C102-7
C49-5
DRIVERS PLATFORM
GRN
GROUND
NEG-2
HORNBRN
C102-8
BRN
LEFT SIDEDUAL HORNS
C199-B
OF FRONTBUMPER CHANNEL
C199-AHORN
RED
HORN-CBBRN
CB 4
10A
CB 22
BAT-24V
RE
LAY
1-3
HORNBRN
WHITEHORN-SW
HORNBRN
85 87 87A
86 30
13-38768R003A
45
LOW FLOORLOW FLOOR
05/03
13-39942R009A
KNEELING SYSTEM
46
LOW FLOORLOW FLOOR
05/03
13-46296R005A
DESTINATION SIGN POWER
47
LOW FLOORLOW FLOOR
08/03
FAN DRIVE
ABB A
ABAB
AB
AB
C404-3
REAR ENCLOSURE
CB 42
LINEAR FIREDETECTION WIRE
1. THIS FAN CONTROL SYSTEM HAS 2 ELECTRONIC TEMPERATURESENSORS, ONE MOUNTED IN THE UPPER RADIATOR PIPE AND THEOTHER IN THE CHARGE AIR COOLER PIPE. THESE ARE WIRED INTOTHE FDCA (FAN DRIVE CONTROL ASSEMBLY). BASED UPON INPUTS
NOTES:
SYSTEM, THE FDCA WILL TURN THE FAN ON, OFF, OR MODULATE THE FROM THESE TWO TEMPERATURE SENSORS AND THE FIRE SHUTDOWN
FAN SPEED TO MEET THE COOLING DEMANDS FROM THE ENGINE.
FROM EXCESSIVE ENGINE COMPARTMENT HEAT.THE FIRE RELAY WHEN THE WIRE SHORTS TO GROUND2. THE FIRE WIRE TURNS OFF THE FAN BY TURNING ON
C8-H
DRIVECONTROL
ASSEMBLY
FAN
FDCA
86
85 30
87 87A
FIRERELAY12V
SENSORTEMPERATURE
COOLANT
SENSORTEMPERATURE
AIR COOLERCHARGE
CAC
SEE FIREALARMSCHEM.
IGN-12VC401-9
YEL
CB 50
C8A-U
CB 51
12VBAT
12VBAT
W/VOITH
CO
N 21
A
B
C
D
E
F
G
H
BRN
RED
BLK/WHT
BRN/WHT
GRN
BLU
WHT
BLK
NEG-5GRN
IGN-12VYEL
FIRE1PPL
FIRERED
A50YEL
NEGGRN
H20-TMPORG
H20-TMP1BLK
AIR-TMP1BLK
AIR-TMPBLU
128BBRN
A128BRN
A50YEL
A50YEL
B
A
CONN 20
CONN 200
B
A
CONN 20A
A50YEL
13-38759R020A
48
LOW FLOORLOW FLOOR
05/03
13-38779R004A
WINDSHIELD WIPERS
49
LOW FLOORLOW FLOOR
Chapter 3- H V A C
H V A C
50
LOW FLOORLOW FLOOR
06/02
1E06078A, Sht 2 FW
HVAC LADDER DIAGRAM
51
LOW FLOORLOW FLOOR
06/02
1E06079A, Sht 2 FW
HVAC SCHEMATIC
52
LOW FLOORLOW FLOOR
08/03
C8-Q
COOLWHITE
BOST-PUMPRED
TO
/FR
OM
TH
ER
MO
KIN
G H
VA
C U
NIT
REAR ENCLOSURE
C401-15
C401-13
GRNNEG-12
BAT-24V4
OVERHEADPANEL
BAT 24V
CB 23
RED
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUTC127-1
C127-9A/C STOP
B1-3424V INPUT
D3-17 C-D3-3AC-FAILWHITE C87-BC401-12
AC-FAILWHITE
C87-E
C-D2-5
C-D2-8
D2-2BAT-24V10RED
10A
24V OUTPUT
CB 53
BAT 24V
10A
24V OUTPUT
D2-5 C-D2-17
C-D2-20REDBAT-24V10
WHITEAC-RUN
C404-1 C87A-AAC-RUNWHITE
OUT-BPWHITE
D2-6
24V OUTPUT
C-D2-24
C-D2-21
REDBAT-24V10 WHITE
COOL
SYSTEM OPERATION:
1. D2-2 IS AC RUN SIGNAL. IT WILL BE ON STATEAFTER ENGINE RUNNING FOR 5 SECONDS.
2. AN INPUT AT D3-17 FROM THE TK
TO DRIVE THE A/C STOPINDICATOR C161-22
UNIT WILL CAUSE OUTPUT B1-34
3. INTELLIGAIRE USER INTERFACE PANELMOUNTED SAWTOOTH CONSOLE OR ON DASH
13-46348R018A
HVAC INTERFACE
53
LOW FLOORLOW FLOOR
11/01
IGN-24VREDDEFROST
GREENNEG-1
L
M
H
C
MOTORSCONTROL
DEFROSTER
B-PRED
HIGHORG
MEDIUMBLUE
LOWPURPLE
B
SWITCH
DEFROSTRED
PURPLELOW
MEDIUMBLUEHIGHORG
GREENNEG-1
REDDEFROST
BLOWERMOTOR
BLACK BLACK
YELLOW
BLACK
MOTORBLOWER
RESISTOR ASM
BRN
ORG
BLACK
PURPLE
A2-26INPUT
C-A2-26B-PRED
PROCESSOR INPUT TURNSON BOOSTER PUMP OUTPUTD2-5 @ REAR ENCLOSURE
LM
H
B CSWITCH
DEFROSTER
CONTROLMOTORS
TERMINALS
OVERHEAD ELECTRICAL PANEL
DRIVERS HEATER/DEFROSTER ASSEMBLY
1
2
1
ITEM DESCRIPTION PART NUMBER QTY
HARNESS 50-42278-001 1
2 MOTOR SWITCH 13-42194-000
4
PURPLE
ORG
BRN
RESISTOR ASM
YELLOW
CURRENTLIMITER
CURRENTLIMITER
1
DRIVERS SIDE CONSOLE
CB 55
C180-1
C180-4
C180-2
C180-3
C93-10
C181-3
C181-4
C181-5
C181-6
C181-1
13-48278R000A
DRIVER’S HEATER/DEFROSTER
54
LOW FLOORLOW FLOOR
09/03
HEATER BOOSTER PUMP
C401-3BOST-PMP
RED C8-QBOST-PMP
RED
C.B. 53
BAT-24V
BOST-PMPRED
GREENNEG-4
C16-B
C16-A
RH SIDE SETTEE OUTRIGGERGROUND
BOOSTER PUMP24V
BLACK
RED
BULKHEAD ELECTRICALENCLOSURE
C-A2-26A2-26 C93-10
IGN-24V
C.B. 31
B-PRED
DRIVERS HEATER/DEFROSTERSWITCH (CLOSED IN ALL ON POSITIONS)
AIR TANK/ELECTRICALCOMPARTMENT
DRIVERS SIDE CONSOLE
NOTES;
1. INPUT FROM THE DRIVERS DEFROSTER SWITCH WILL TURN ONOUTPUT D2-5 IN THE BULKHEAD ELECTRICAL COMPARTMENT.
2. AN OUTPUT FROM THE TK OR CARRIER HVAC UNIT IN HEAT MODE WILL DRIVE THE BOOSTER PUMP.
3. THE WEBASTO UNIT WILL DRIVE THE BOOSTER PUMP RELAY WHEN ON.
24V INPUTC180-1
DEFROSTRED
DEFROSTRED
B C
L/H "B" POSTCOVER
WHITEOUT-BP
ENCLOSURE DOORBULKHEAD ELECTRICAL
L/H DASH PANELPANEL #3
4. SEE LADDER DIAGRAMS FOR COMPLETE PROCESSOR LOGIC.
20A
BAT-24V10C-D2-20
C-D2-17
RED24V OUTPUT
D2-5
10A
WHITEOUT-BP
13-39159R010B
LOW FLOORLOW FLOOR
5506/02
AUXILIARY DEFROSTER FAN
13-46502R006A
56
LOW FLOORLOW FLOOR
08/03
DRIVER’S BOOSTER FAN
HI
LO
DR-FANRED
C93-12
C102A
-8
C167-8
DR
-FA
NR
ED
REDDR-FAN
NE
G-6
GR
N
C93-3
C93-11
C102-1
C102-6
IGN-24VRED
YELLOWIGN-12V
REDIGN-24V4
IGN-12VYELLOW
AIR TANK/ELECTRICAL COMPARTMENT
CB 51/27*
CB 37/13*
L/H CEILING DUCT
"B" P
OS
T C
OV
ER
SIDE CONSOLELEFT DASH PANEL#3
*DENOTES CB #W/REDUCED RELAYS
MOTOR
BLACK
RED
24V
13-38786R003E
57
LOW FLOORLOW FLOOR
09/03
PROHEATHARNESS
50-45969-000HARNESS
REARENCLOSURE
DRIVER'SCONSOLE
ENGINEHARNESS
HARNESSPROHEAT 50-45970-TAB
HARNESSDRIVER'SOVERHEAD PANEL
AB
PRO-HTRRED RED
AUX-HEAT AUX-HEATRED
PINKIGN-CB
ORANGE71
RED
GREEN
RUN, SUPPLEMENTAL
RUN, PREHEAT
FUNCTION LIGHT
RUN/UNLATCH
GROUND
POWER
PROHEAT CONTOLLER
BLUE
WHITE
BLACK
OFF
ON
REMOTE ENABLE/DISABLE SWITCH
GR
NN
EG
-4C8-T
BAT-24V
CB 54C204-B
C204-A
C403-1
POWER
C B A INPUT
AUX
B
A
INPUT
D
C
SWITCH
A
B
E
F
D
C
A
B
5
6
4
3
1
2
CB 20
IGN-24V
10A
15A
13-46248R004A
PROHEAT AUXILIARY HEATER
58
LOW FLOORLOW FLOOR
Chapter 4- Lighting
L I G H T I N G
59
LOW FLOORLOW FLOOR
04/02
13-48839R001A
EXTERIOR LAMP TEST
60
LOW FLOORLOW FLOOR
08/03
C406-1
C406-9
REAR BULKHEAD PANEL
10A
10A
C-D3-28
D3-7
D3-2
C-D3-25
C-D3-5
C-D3-8
12V OUTPUT
TAILBRN
MARKERSPPL
BAT-12V
BAT-12V
TAIL-CBBRN
MRKR-CBPPL
12V OUTPUT
GREEN
PURPLEMRKR
NEG-3
MID SKIRT MARKERLEFT REAR
C234B-B
C234B-C
C231-BNEG-3GREEN
C231-AMRKRPURPLE
C230-A
C230-BGREENNEG-1
MRKRPURPLE
MRKR
NEG-1GREEN
PURPLE
C227-B
C227-A
PURPLE
GREENNEG-1
MRKRC228-A
C228-B
MR
KR
PU
RP
LE
NE
G-1
GR
EE
N
NEG-1
MRKR
GREEN
PURPLE
C229-B
C229-A
NEG-1
MRKR
GREEN
PURPLE
C224-B
C224-A
C225-B
GR
EE
NN
EG
-3
MR
KR
PU
RP
LE
C225-A
C234A-B
C234A-C
PURPLE
GREENNEG-3
MRKR
C212-F
C212-D
PURPLEMRKR
GREENNEG-5BROWNTAIL
CORNER MTD.
C217-C
C217-A
STOP/TAIL
RIGHT REAR
NEG-8GREEN
TAILBROWN
STOP/TAIL
C222-A
C222-C
LEFT REARCORNER MTD.
NEG-3GREEN
TAILBROWN
C8C
-B
MRKRPURPLE
NEG-3GREEN
C215-A
C215-B
BROWNTAIL
LICENSE PLATE
NEG-9GREEN
NE
G-5
GR
EE
N
C135-2
C135-1NEG-7GREEN
MRKRPURPLE
C134-2
C134-1GREENNEG-7
PURPLEMRKR
C133-1
C133-2PURPLE
NEG-7GREEN
MRKR
C131-1GREENNEG-7
C131-2PURPLEMRKR
C136-2
C136-1NEG-7GREEN
MRKRPURPLE
C130-A
C130-B
NE
G-7
GR
EE
N
MR
KR
PU
RP
LE
C137-2
C137-1
C255-1
C255-2
C119-9
PURPLEMRKR
AIR
TA
NK
/ELE
CT
RIC
AL C
OM
PA
RT
ME
NT
BAT-24V
IGN-CBPINK
C102-15
PINKIGN-CB
C96
-12
NITE-RUNBLUE
A1-18 C-A1-7
DRIVERS SIDE CONSOLE
RIGHT SETTEEOUTRIGGERGROUND
RIGHT SETTEEOUTRIGGERGROUND
LEFT REAR SIDECLEARANCE LAMP
REAR MARKERLAMPS
RIGHT REAR SIDECLEARANCE LAMP
LAMPSREAR MARKER
FRONT MARKERLAMPS
LAMPSFRONT MARKER
RIGHT FRONT SIDECLEARANCE LAMP
CLEARANCE LAMPLEFT FRONT SIDE
24V INPUT
B 2
C86B-F
C86-E
C207A
-A
MRKRPURPLE
NE
G-1
GR
EE
N
C207-B
NE
G-1
GR
EE
N
MRKRPURPLE
NEG-7GREEN
C96
-4
IGNITION SWITCHNIGHT RUNIG
N-C
BP
INK
C167-13
C102-10
C8A
-E
C610-B
C610-A
MID ROOF CLEARANCELAMP (IF EQUIPPED)
LEFT CEILING DUCTS
PURPLEMRKR
NE
G-7
GR
EE
N
PU
RP
LEM
RK
R
C38-7
MR
KR
PU
RP
LE
RIGHT CEILING DUCTS
L/H "B" POST COVER
R/H "B" POST COVER
C254-B
C254-A
MRKRPURPLE
NEG-12GREEN
MRKRPURPLE
GREENNEG-9
C142-B
C142-C
MR
KR
PU
RP
LE
NE
G-9
GR
EE
N
LAMP (IF EQUIPPED)MID ROOF CLEARANCE
FORWARD RIGHT FRONT WHEELCOMBINATION TURN/MARKER
FORWARD LEFT FRONT WHEELCOMBINATION TURN/MARKER
C39-B
C39-C
MRKR-LTPURPLE
NEG-3GREEN
COMBINATION TURN/MARKERREARWARD LEFT FRONT WHEEL
C40-B
C40-C
(IF EQUIPPED)
COMBINATION TURN/MARKERREARWARD RIGHT FRONT WHEEL
C142A-C
C142A-B
(IF EQUIPPED)
PURPLEMRKR
NE
G-7
GR
EE
N
GR
EE
NN
EG
-9N
EG
-12G
RE
EN
NE
G-7
GR
EE
NN
EG
-7G
RE
EN
GREENNEG-3
MRKRPURPLE
MID SKIRT MARKER
C249-B
RIGHT REARC249-A
FORWARD RIGHT REAR WHEELCOMBINATION TURN/MARKER (IF EQUIPPED)
C235A-B
C235A-CNEG-3
PURPLEMRKRGREEN
COMBINATION TURN/MARKERREARWARD RIGHT REAR WHEEL
PURPLEMRKR
GREENNEG-3
C250-B
C250-A
C235B-B
C235B-C
PURPLENEG-3GREEN
MRKR
COMBINATION TURN/MARKER (IF USED)FORWARD LEFT REAR WHEEL
COMBINATION TURN/MARKER REARWARD LEFT REAR WHEEL
NOTES:1. INPUT A1-18 (FROM THE "NIGHT RUN"IGNITION SWITCH) WILL TURN ON OUTPUTSD3-2 AND D3-7 (REAR) AND B4-5(FRONT)2. SEE LADDER DIAGRAMS FOR COMPLETEPROCESSOR LOGIC
MR
KR
-LTP
UR
PLE
GR
EE
NN
EG
-3
MRKRPURPLE
NEG-9GREEN
3. ALL LAMPS 12V. SOME MAY BE INCANDESCENT
PU
RP
LEM
AR
KE
RS
TA
ILB
RN
15A
10A
12V OUTPUT
C-B4-4-1B4-110A
BAT-12V
B4-12VYELLOW 25A
10A
C.B. 49
C.B. 46
C.B. 20
C.B. 5
13-48250R004A
TAIL & MARKER LAMPS
61
LOW FLOORLOW FLOOR
08/03
C.B. 48
C.B. 23
C.B. 6
C.B. 5
BAT-12V
C406-5
B2-17 C-B2-3
AIR TANK/ELECTRICAL IGN-CB
PINK
C96
-12
A1-20 C-A1-15
DRIVERS SIDE CONSOLE
24V INPUT
24V INPUT
ELECTRICAL PANEL
C406-2
TURN-CBBLUE
R-TURNRED
L-TURNBLUE
C96
-10
C221-B
C221-A
C8A-RBLUEL-TURNC86-A L-TURN
BLUE
C207A
-D
L-TU
RN
BLU
E
L-TU
RN
BLU
E
OPTIONALHVAC GRILL MTD.LEFT TURN LAMP
C235B-A
C235B-C
L-TURNBLUE
GREENNEG-3
L-TURNBLUE
NEG-3GREEN
C234B-C
C234B-A
NEG-3BLUEL-TURN
GREEN
GREENNEG-7
GREENNEG-3
L-TURNBLUE
LEFT REARSIGNAL LAMP
SIDE SIGNALLEFT REAR
(REARWARD)(OPTIONAL)
LEFT REARSIDE SIGNAL(FORWARD)
RIGHT TURN LAMPHVAC GRILL MTD.OPTIONAL
R-TURNREDRED
R-TURN
R-TURNRED RED
R-TURN
R-TURNRED
R-T
UR
NR
ED
C8A-SC86-B
C235A-A
C235A-C
C234A-A
C234A-C
C218-A
C218-B
NEG-3GREEN
C207A
-C
GR
EE
NN
EG
-3
C37
-A
C37
-B
C36
-A
C36
-B
REDBAT-24V
BLUEL-TURN1
REDR-TURN1
C38-8
HAZARDRED
C38-5
C38-6
A1-21
24V INPUT
C-A1-19
24V INPUT
A1-22 C-A1-23
R-TURN1RED
L-TURN1BLUE
REDBAT-24V1
RIGHT TURN
PROCESSOR OUTPUT
B1-44
LEFT TURN
C127-1
C127-9GRNNEG-12
BAT-24V4RED
B1-1
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT
BAT-24V
C10
2-13
C10
2-15
IGN
-CB
PIN
K
RE
DB
AT
-24V
12V OUTPUTS
A1-1C-A1-1
C-A1-4
10A
BAT-12V
TURN-CBBLUE
C10
2-11
TU
RN
-CB
BLU
EC-A1-12
C-A1-910A
A1-3R
T-T
UR
NR
ED
BLU
EL-T
UR
N
TE
ST
SW
-1
TE
ST
SW
-2
C.B. 23
BAT-24VBAT-24V
RED
LAMP-TEBLUE
EXTERIOR LAMPSTEST SWITCH
HAZARD SWITCH
(OPTIONAL)(REARWARD)
RIGHT REARSIDE SIGNAL
(FORWARD)SIDE SIGNALRIGHT REAR
SIGNAL LAMPRIGHT REAR
NEG-3GREEN
NE
G-3
GR
EE
N
LEFT TURNFOOT SWITCH
RIGHT TURNFOOT SWITCH
BAT-24V
C.B. 20
BAT-24V
C.B. 17
C38
-3
C38
-4
RT
-TU
RN
RE
D
C10
1A-2
RT
-TU
RN
RE
D
C39A-C
C39A-ARIGHT FRONTSIDE SIGNAL(FORWARD)
GREENNEG-3
RT-TURNRED
TURN
SIDE SIGNALLEFT FRONT
(FORWARD)
(REARWARD)
C39-C
C39-A
LEFT FRONTSIDE SIGNAL
C34-A
C34-C
BROWN
BLUEL-TURN
NEG-3GREEN
GREENNEG-9
C142-C
C142-A
NE
G-9
GR
EE
N
GREEN
RT-TURN
NEG-3GREEN
RED
C40A-C
C40A-A
NEG-9(REARWARD)SIDE SIGNALRIGHT FRONT
(OPTIONAL)
R/H FRONTWHEEL WELLCOVER
R/H "B" POSTCOVER
L/H "B" POSTCOVER
C40-C
C40-ABLUEL-TURN
NEG-3GREEN(OPTIONAL)
L/H FRONTWHEEL WELLCOVER
RT
-TU
RN
RE
D
LT-T
UR
NB
LUE
NEG-3GREEN
C32-E
C32-D
RT-TURNRED
C31-E
C31-D
C30-ABROWNTURN
C30-C NEG-3GREEN
R/H FRONTTURN LAMP
TURN LAMPL/H FRONT HEAD LAMP BUCKET CONNECTORS
COMPARTMENT
OV
ER
HE
AD
CO
NS
OLE
NEG-3GREEN
SEE NOTE 1
NOTES:1. CLOSING THE EXTERIOR LAMPS TESTSWITCH WILL CAUSE THE RIGHT TURN LAMPSTO FLASH FASTER THAN THE LEFT SIDE LAMPS.2. SOME LAMPS DEPICTED AS LED MAY BEINCANDESCENT3. SEE LADDER DIAGRAMS FOR COMPLETESYSTEM LOGIC.
C-D3-1
C-D3-4
C-D3-12
C-D3-9
12V OUTPUT
10A
10A
D3-3
D3-1
BULKHEAD
12V OUTPUTTURN-CBBLUE
C212C
-A
C212C
-B
NEG-1GREEN
C212B
-B
C212B
-A
C212-B
C212-A
C34-BPURPLEMRKR-LT
(TURN/MARKERCOMBINATION)
COMBINATION)(TURN/MARKER
C32-F C31-F
C38
-7
PU
RP
LEM
RK
R-LT
C34-BPURPLEMRKR-LT
MRKR-LTPURPLE
MRKR-LTPURPLE
C10
2-10
MR
KR
SP
UR
PLE
B4-1
BAT-12V
C-B
4-4-1
YE
LLOW
B4-12V
10A
25A
12V O
UT
PU
T
20A
15A
10A
MRKR-LTPURPLE
13-48295R007A
TURN SIGNALS
62
LOW FLOORLOW FLOOR
05/03
REVERSE LAMPS
13-39160R006A
63
LOW FLOORLOW FLOOR
08/03
BRK-SW PPLC-D2-31D2-24
REAR BRAKE LAMPSWITCHFORWARD OF REAR AXLE
STOP PPL
UNDER DRIVERS PLATFORM
SWITCHFRONT BRAKE LAMP
BAT-24V
CB-17C-A2-24A2-24
C102-13
BRK-LTPURPLEPURPLE
BRK-SWREDBAT-24V
REDBAT-24V
C49-2
C49-1
REDBAT-24V
LEFT "B"POSTDRIVERS CONSOLE
C403-12
C403-15
C406-3
REAR ELECTRICAL ENCLOSURE
REAR ELECTRICAL ENCLOSURE
WHITE
C232-B
RED
C232-C
C212-C
WHITE
C226-C
RED
C226-B
STOP PPL
NEG-1 NEG-1GRN C212-D
WHITE
C222-C
NEG-5
C217-C
WHITE
STOP PPL
C217-B
RED
STOP PPL
C222-B
RED
NEG-8GRNGRN
GRNNEG-1
GROUNDRT. SETTEE OUTRIGGER
RT. SETTEE OUTRIGGERGROUND
RT. CORNERLEFT CORNER
RT. CAPLEFT CAP
UPPER PANELGND STUD STRIP
SEE NOTE #1
SEE NOTE #2
SEE NOTE #3
OVERHEAD ELECT. PANEL
NOTES:1. OUTPUT B1-41 TURNS ON IF INPUTS A2-24 OR
D2-24 ARE TURNED ON BY THE BRAKE LAMP SWITCHES.IT WILL ALSO TURN ON IF THE "RETARDER APPLIED"SIGNAL IS ACTIVE.
2. 24V POWER WILL BE APPLIED TO INPUT A2-24 IFTHE FOOT VALVE IS DEPRESSED BY THE DRIVER WHICHCLOSES THE BRAKE LAMP SWITCH @ APPROX. 4 PSI
3. 24V WILL BE APPLIED TO INPUT D2-24 IF THE FOOT VALVE IS DEPRESSED BY THE DRIVER WHICH CLOSES THEREAR BRAKE LAMP SWITCH @ APPROX. 4 PSI.
OVERHEAD ELECT.PANEL
ARRAY ARRAY
ARRAY ARRAY
4. THE BRAKE INTERLOCK SYSTEM CLOSES ONLY THE REARBRAKE LAMP SWITCH.
INPUT
INPUT
C8-O C86B-C
C207-F
C207-EC8A-CBRK-SW
PPL
BAT-24V2REDC8A-D
BAT-24V2RED
PPLSTOP
PPLSTOP
BAT-24VRED
C127-9
C127-1
BAT 24V
BAT-24V4 RED
NEG-12 GRN
CB 23
BRAKES
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-41
12V OUTPUT
D3-4 C-D3-13
C-D3-16STOP-CBGREEN
10A
BAT12V
C.B. 47
STOPPPL
C.B. 59
BAT12V
10AREDBAT-24V
10A
15A
13-48241R002B
BRAKE LAMPS
64
LOW FLOORLOW FLOOR
08/03
CB 17
20A C35-A
DIMMERSWITCH
C33-C
C33-B
C33-A
HI-BEAMBLK
GREENGND1
ORLO-BEAM
C33-A
C33-B
C33-C
LEFT HEAD LAMP ASM.
RIGHT HEAD LAMP ASM.
DRIVERS SIDECONSOLE
CB 20
C-A1-7A1-18
24V INPUT
BLUENITE-RUN
BATTERYYELLOW
C35-C
C35-BBLACKHIGHBEAM
SWITCH PEDESTAL
C32-CORGA26R
C32-BBLUA25R
C-A2-21 A2-21
12V INPUT
ROTARY SWITCHNIGHT RUN
B 3
IGN
-CB
PIN
KC
96-1
2
BLU
EN
ITE
-RU
NC
96-4
C102-15PINKIGN-CBIGN-CB
PINK
BATTERY 24V
IGNITION 24V
C102-13RED
BATTERY 24VCB 23
REDBAT-24V4
15ABAT-24V4RED
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-37
C127-9
C127-1
NEG-12GREEN
MAINOVERHEADPANEL
"HIGH BEAM"
15A
DASH POD
BAT-24VBAT-24V1RED
HI-BEAMBLACK
HI-BEAMBLACK
A26R
A25RBLU
ORG C102A-13
C102A-7
BAT-24V4RED
C102A-6
C102A-14ORGA26L
BLUA25L
A26L
A25LBLU
ORG C31-C
C31-B
C38-12
C38-11
C38-8
C38-10
C38-9
BAT-24VRED
GND1
LO-BEAMOR
GREEN
HI-BEAMBLK
CB4-3-A
B4-8
BATTERY 12V
C-B4-1-8
B4-7 C-B4-1-7
CB 10
YELLOWHDLT-BAT
20A
CB4-4-1BATTERY 12VCB 5
B4-12VYELLOW25A
B4-5
B4-6 C-B4-1-6
C-B4-1-5
13-51618R003A
HEAD LAMPS
65
LOW FLOORLOW FLOOR
09/03
OVERHEAD ELECTRICAL COMPARTMENT
BALLASTGREENREDBLACK A
BC
GRN
RED
BLK C177-2
C177-1
ABLACK
GRN
BALLAST CBGREEN
RED
BLK
RED
C175-1
C175-2
ABLACK
GRN
BALLAST CBGREEN
RED
BLK
RED
C174-1
C174-2
ABLACK
GRN
BALLAST CBGREEN
RED
BLK
RED
C172-1
C172-2
ABLACK
GRN
BALLAST CBGREEN
RED
BLK
RED
C171-1
C171-2
LAMP-1ORANGE
NEG-2 GRN
C144-31
8
2BLK
C144-1BALLAST BALLAST BALLAST BALLAST BALLAST
BALLASTORGREDBLACK
C145-2
C145-1
GREENREDBLACK
GRN
RED
BLKBCA
GREENREDBLACK
RED
BLKGRNC
146-2
C146-1
BCA
GRNGREENREDBLACK
BCA
BLK
RED
C147-2
C147-1
GRN
RED
BLK
C148-2
C148-1
GREENREDBLACK
BCA
GRNGREENREDBLACK A
CB
BLK
RED
C149-2
C149-1
LAMP-4ORANGE
ORANGELAMP-6
LAMP-3ORANGE ORANGE
LAMP-2
ORANGELAMP-6
LAMP-4ORANGE
ORANGELAMP-1
ORANGELAMP-2LAMP-5
ORANGE LAMP-3ORANGE
DRIVERS CONSOLEGROUND STRIP
RIGHT CEILING LIGHTING PANELS (CURBSIDE)
LEFT CEILING LIGHTING PANELS (STREETSIDE)
NOTES:
1. SEE PROGRAM FOR COMPLETE SOFTWARE LOGIC.
NEG-3 GRN
NEG-2 GRN
NEG-3 GRN
NEG-2 GRN
LAMP-5ORANGE
REDLMP-1B
REDLMP-1B
C144-2
LAMPSRIGHT
BUSS
LEFTLAMPSBUSS
GRNWHTWHT
RED
5436
REDORG
BLUGRNYELLTBLU
EXTINGUISHABLE
C16
9-3
EXTINGUISHABLE BALLAST
BLUGRN
LTBLU
ORGBALLAST
YEL
5 BLK
WHTRED
36
4
ORGRED
12
8
GRNWHT
C16
9-2
C16
9-1
BLACKRED
NEG-1 GRN
PP
LIN
T-LT
S1
NEG-1 GRNNEG-1 GRNNEG-1 GRN
LMP
-1B
RE
D
OR
GLA
MP
-1O
RG
LAM
P-2
10A OUTPUT (SEE NOTE)
10A OUTPUT (SEE NOTE)
B3-5
B3-2
LAMP-1B
INT-LTS1C-B3-5
C-B3-20
C-B3-17
C-B3-8
PPL
BAT-24V
RED
B3-3
10A OUTPUT (SEE NOTE)
INT-LTS2
C-B3-12
C-B3-9BLU
LAM
P-1B
RE
DIN
T-LT
S2
BLU
INTLT-CB1PPL
REDINTLT-CB2
10A OUTPUT (SEE NOTE)
D4-6 C-D4-21
C-D4-24
BLUINT-LTS4
10A OUTPUT (SEE NOTE)
D4-3 C-D4-9
C-D4-12
PPLINT-LTS3
BAT-24V
INTLT- CBRED
INTLT- CBRED
INT-LTS4BLU
INT-LTS3PPL
BAT-24V
REAR ELECTRICAL ENCLOSURE
INPUT CONTROL MODULEDASH MOUNTED I-O
TOGGLE SWITCHINTERIOR LAMP
RE
DB
AT
-24V
BAT-24VRED
OR
G
ALL
OR
G
ROAD SIDE
24V INPUT (SEE NOTE)
24V INPUT (SEE NOTE)
C-A2-27
C-A2-25
A2-27
A2-25INT-LTS
ORG
ORGINT-LT2
INT
-LT
INT
-LT2
2. B3-3 (FRONT STREETSIDE) AND B3-2 (FRONT CURBSIDE) CONTROL FRONT LAMPS; ANDB4-6 (REAR STREETSIDE) AND B4-3 (REAR CURBSIDE) CONTROL REAR LAMPS.
BAT-24V
OFF
LTS
2-3
LTS
2-4
C167-3
LTS
2-2
LTS
2-1
LTS
1-4
LTS
1-1
LTS
1-2
LTS
1-3
C167-1
C117-3
C117-1
C167-2
C117-2
15A
CB 18
15A
CB 57
15A
CB 19
C96-2C102-13
CB 1720A
C96D
-2
C96D
-4
13-39939R011B
INTERIOR LIGHTING
66
LOW FLOORLOW FLOOR
08/03
REAR STEP LIGHTING
IGN-12VYELLOW
STEP-LTS
STEP-LTSYELLOW
REAR STEPS
REAR ELECTRICALENCLOSURE
NEG-3GREEN
C207A
-B
C404-10 STEP-LTSYELLOW
C8A-FYELLOW
STEP-LTS
C246-A
C246G-AYELLOW
STEP-LTS
C246-B
C246G-B
*DENOTES CB #W/REDUCED RELAYS
CB 5/45*
13-39945R004B
67
LOW FLOORLOW FLOOR
05/03
MAP LIGHT
CB 37
IGNITION12V
MAP LAMPSWITCH
IGN
-12VY
ELLO
W GREENNEG-4
MAP LAMP
OVERHEAD ELECTRICAL PANEL
GND TERMINAL STRIP
ON BASE
IGNITION12V
CB 13 NOTE 1
NOTES:1. C.B. 13 USED W/REDUCED RELAYS OPTION
13-42454R004B
68
LOW FLOORLOW FLOOR
08/03
PNL-12VPPL C93-1
C93-2BLUEPNL-LTS
BLUEPNL-LTS
C93-9NEG-15
GRN
DIMMER
C96-6GRN
PNL-LTS
NEG-19
BLUE C96-1
LH DASH PANEL
IGN. SWITCH PANEL
CENTER DASH PANEL
C94-5BLUE
NEG-15GRN C94-9
PNL-LTS
RH DASH PANEL
C95-7GRN
C95-6
NEG-15
PNL-LTSBLUEC97-4 BLUE
PNL-LTSBLUEPNL-LTS
MIRROR CONTROLPANEL
C97-3
NEG-19GRN
C96-4C96-12
ROTARY SWITCHNIGHT RUN
C102-15
B 3
PANELOVERHEAD ELECTRICAL
PNL-12VPPL
C96-5NGT-PRK
C102A-9
DRIVER'SCONSOLE
BAT 24V
CB 20
IGN-CBPINK
IGN-CBPINK
2
B4-12V
BATTERY 12VCB 5
PPL
YEL
PNL-12V
10A OUTPUT SEE NOTE 1
B4-3C-B4-1-3
C-B4-4 1. INPUT EITHER A1-18 OR A1-19 WILL TURN
NOTES:
ON OUTPUT B4-3.25A
10A
C-A1-11
C-A1-7A1-18
A1-19
NITE-RUNBLU
PARK-POSPPL
NITE-RUNBLU
PARK-POSPPL
PP
L
BLU
NIT
E-R
UN
PA
RK
-PO
S
13-50198R005A
DASH PANEL LAMPS
69
LOW FLOORLOW FLOOR
Chapter 5- Doors
D O O R S
70
LOW FLOORLOW FLOOR
08/03
DRIVERS DOORCONTROL SWITCHES
A1-23 C-A1-27
A1-24 C-A1-31
C98-2
C98-1WHITEEXIT-DOR
C98-3BAT-24VRED
C-C1-29C1-8DOR-LTSWHITE
ENTRANCEDOOR SW.CLOSED IN"FRONT" POS
"REAR" POSCLOSED INDOOR SW.EXIT
REDBAT-24V
WHITEENT-DOR
WHITEEXIT-DOR
WHITE
BLUEBROWNBLACK
BLACK
BLUEBROWN
ENTRANCE DOOROPEN PROXIMITYSENSOR (12V) SENSOR (12V)
CLOSED PROXIMITYENTRANCE DOOR
ENTRANCE DOOR
C139-6
OPEN SOLENOID
C139-1
C139-2
WHITE
WHITE
SWI-POWRED
GREENNEG-5
DOR-SW2BLACK
C139-3
C152-8
C152-9
C152-7DOR-SW1
BLUE NEG-5GREEN
2
POWER OPEN1
UNLATCH SOLENOID
SOLENOID NOT
RR-OPENWHITE
C336-7
C336-9
C336-8
C336-4
C336-1
C336-5
C336-6
1
2
C336-2
SENSITIVE EDGESWITCHESIF USED
C336-3
2
1
2
1
TOUCH BARSOR TAPESIF USED
IN-TBBLK
IN-TBBLK
REDSW-POW
REDSW-POW
BLACKIN-4
DRUNK ALARMSWITCH IF USED
BLACKIN-4
IN-1BLACK
OPEN SWITCHDOOR FULLY
DOOR SWITCHUNLATCHED
IN-SESBLACK
LOK-SOLWHITE
NEG-5GREEN
ENABLEGREEN
LAMP
BLUEGRN-LT
UNLATCHEDSWITCH 2 IF USED
IN-1BLACK
LATCHBLACK
LATCHBLACK
NEG-5GREEN
IN-SESBLACK
SW
-PO
WR
ED
SW-POWRED
REDBAT-24V
C152-1
C152-11FT-OPEN
C139-4
DOR-SW1
BLUEDOR-SW2BLACK SWI-POW
REDFT-OPEN
PINK
NEG-5GREEN
1 2
1
2
1 2EXITREARWARD
LAMPEXITFORWARD
LAMP
1 2
1 2 3 1
LAMPSENTRANCEREARWARD
LAMPENTRANCEFORWARD
WHITELOK-SOL1
C1-4 C-C1-13
C1-19 C-C1-11
C1-22 C-C1-23
C1-18 C-C1-7
C1-23 C-C1-27
C1-24 C-C1-31
C-C1-19
C1-20 C-C1-15 PINK
IN-SESBLACK
LATCHBLACK
IN-1BLACK
IN-4BLACK
IN-TBBLK
DOR-SW2BLACK
DOR-SW1BLUE
WHTRR-OPEN
C1-3 C-C1-9
YELLOWBAT-12VC152-3
C152-6NEG-5GREENS
W-P
OW
RE
D
SW-POWC1-1 C-C1-1 RED
C1-2 C-C1-5 PINKFT-OPEN
BLA
CK
CLE
AR
GRN
NEG-9GREEN
A1-2C-A1-5BLU
DOR LT
C117-13
BLU
CB 1
BAT-12V
CB 21
BAT-24V
C119-10
BAT-12VYELLOW
C117-15
BAT-24V2RED
CB 17
BAT-24V
C102-13
DO
R-LT
BLU
NE
G-19
GR
EE
N
C165C165
C141 C141
EXIT DOORENTRANCE DOOR HEADER
DRIVERS CONSOLE
EXIT DOOR HEADER
ENT-DOR
24V OUTPUT
INPUT
INPUT
24V OUTPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
C9-2
C9-1
DR-LTSWHT
GND
DOR-LT
24V OUTPUT
24V OUTPUT
24V OUTPUT
24V OUTPUT
OVERHEAD PANEL
C102A
-10
C101-13
BLUDOR-LT
C127-9
C127-1RED
NEG-12 EXIT DOOR
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-18
PROCESSOR OUTPUT
DOOR ALARM
B1-22
BAT-24V4
GRN
CB 23
BAT-24V
BAT-24VRED
REDBAT-24V1
C1-21INPUTB
10A
15A
20A
15A
13-48280R004A
DOOR CONTROL
71
LOW FLOORLOW FLOOR
09/03
BRAKE/THROTTLE INTERLOCK
OVERHEAD
B3-6 C-B3-21
C102-9
C49-3
NE
G-2
GR
N
GRNNEG-2
SWITCH"OVER RIDE"
INTERLOCK
SHOWN ENGAGED
B3-18 C-B3-7
UNDER DRIVERSPLATFORM
ISL'03
C1-
13
REAR UPPER PANELENCLOSURE
(INTERLOCK OFF)
NOTES:1. INTERLOCK WILL BE APPLIED BY:THE EXIT DOOR, KNEELING, REAR RUN SWITCH, RAMP,AND FAST IDLE.
2. INPUT AT B3-18 WILLDISABLE ALL OUTPUTS ANDCLOSE THE EXIT DOOR.3. ONCE INTERLOCKS AREAPPLIED, A FRONT BRAKE LIGHTSWITCH INPUT IS REQUIREDTO RELEASE IT.
ELECT COMPARTMENT
ENGINE ECM
ENGINECOMPARTMENT
OUTPUT
INPUT
C402-12 C8-N
C-D1-1-12
C-D1-1-8
10A OUTPUT
D1-8
ENGINE ECMISC/ISL
C1-
24
BRNOUT-INT
BRNINTRLOC
BRNINTRLOC
INTRLOCBRN
FRONT BRAKEINTERLOCK SOLENOID
CB 22
BAT-24VREDBAT-24V
BRNINT-DISINT-DIS
BRN
BLUEINTRLOC
SOLENOIDINTERLOCK REAR BRAKE
THRT-INTBLUE BLUE
THRT-INT
ENG-NEGBLACK
10A
13-40156R012B
72
LOW FLOORLOW FLOOR
05/03
13-48316R005A
STOP REQUESTED SYSTEM
73
LOW FLOORLOW FLOOR
03/01
391-0105C
PASSENGER RAMP
74
LOW FLOORLOW FLOOR
03/01
392-0016B
PASSENGER RAMP INTERFACE
75
LOW FLOORLOW FLOOR
03/01
393-0166B
PASSENGER RAMP INTERCONNECT
76
LOW FLOORLOW FLOOR
05/03
13-48281R003A
PASSENGER RAMP INTERFACE
LOW FLOORLOW FLOOR
77
Chapter 6 - Dash
D A S H
78
LOW FLOORLOW FLOOR
09/03
5
2 4
1 B
3
6
BAT-24VRED
CHIMEWHITE
WHITECHIME-1
C96D-3
C96-2
POS 1=OFFPOS 2=B TO 1,6POS 3=B TO 1,2,3,6POS 4=B TO 2,4,5,6
DAY RUNNIGHT RUNPARK
IGN-CBRED
FT-IGNRED
NITE-RUNBLUE
PARK-POSPURPLE
FT-IGNRED
C96-5
C96-3
C96-12
C96-4
C96-9FT-STRT
GRAY
CHIMESELECTORSWITCH
IGNITIONSWITCH
FRONT
STARTFRONT
SWITCH
PLC INPUT
PLC INPUT
PLC INPUT
PLC INPUT
PLC INPUTAND IGNCIRCUITS
REAR IGNSWITCH THENNEUTRAL RELAY
FROM C.B.#20
#17FROM C.B.
INT-LT2ORANGE
ORANGEINT-LT
REDBAT-24V
PLC INPUT
PLC INPUT
LAMPSSWITCH
INTERIOR
REAR
ALL
HAZARDRED
REDBAT-24V
PLC INPUT
PLC INPUT
BAT-24V
FST-IDLWHITE
RED
HAZARDSWITCH
SWITCHFAST IDLE
C96-10
C96-8
FROM PANEL C96-1PNL-LTSBLUE
LTS. DIMMER
C96-6GREENNEG-19
IGNITION SWITCH PANEL
PANEL BACK LIGHTING
PNL-LTSBLUE
NEG-15GRN
DIMMER
PANEL LAMPSTO ADDITIONAL
C93-2
FROM PLCINPUT B4-3
C93-1
C93-9PANEL BACK LIGHTING
RIGHT DASH PANEL
PANEL BACK LIGHTING
FROM PANELLTS. DIMMER
C95-6
C95-7
PNL-LTSBLUE
NEG-15GREEN
1. SEE DRIVERS HEATER/DEFROSTER SCHEMATIC FOR SWITCH WIRING2. SEE WINDSHIELD WIPER SCHEMATIC FOR SWITCH WIRING
C96-11TO SIGN,YELLOW
IGN-ON
RADIO AND FAREBOXCONTROL
SIDE CONSOLE
LEFT DASH PANELC96D-4
C96D-1
C96D-2
A2-9
A1-22
A2-25
A2-27
A2-10
A2-11
A1-19
A1-17
A1-18
1. SEE THERMOKING H.V.A.C. SCHEMATIC FOR THERMOKING INTELLIGAIR II CONTROLS WIRING.
2. SEE P.A. CONTROLS SCHEMATIC FOR SWITCH WIRING.
IGN-12V
DR-FAN
IGN-24V4#27FROM C.B. C93-3
RED
#13
TO BOOSTER
FROM C.B.
FANC167-8
C94-6
RED
YELLOW
HIGH
SWITCH
BOOSTERFAN
LOW
ENGINE ECM C96E-1WHITE
STOP-OVERSHUT-DOWNOVERRIDESWITCH
C96E-2BLACK
ENG-NEGECM RETURN
(PIN 34)
(PIN 15)
A2-8PLC INPUT
FROM C.B.#27
C95-9
C95-12
DIA-REQ
IGN-24V4
GREEN
REDENGINE TEST
DISABLE RELAYINTERIOR SPEAKER
DISABLE RELAYEXTERIOR SPEAKER
SPK-DISRED
FROM C.B.#33
XSP-DIS
IGN-24V2RED
ORG
SELECTSPEAKER
FAN-CBORANGE
ORANGE
ORANGELO-FAN
TO DRIVER'S FAN
TO DRIVER'S FAN12V-POSITION
24V-POSITION
FROM C.B.#32
C95-13
C-SWIT-2
C-SWIT-1
AUXILIARYDRIVER'S FAN
LOW
HI-FAN HIGH
A2-22
FROM C.B.
PLC INPUT
#26
HEATER/
SWITCHPROHEAT
ENABLE
BLUE
REDBAT-24V5
MIRROR SW.SPARE B-3
SPARE B-4 HEATED MIRROR(STREET&CURB)
COOLANT
OFF
IGN-CB
RUN
#20
CONTROLLER
FROM C.B.
TO PROHEAT PROHEAT-A
PROHEAT 1-E
WHITE
PINK
#17
PLC INPUTA2-28
FROM C.B.
PLC INPUTA2-29
BLUERAISEC95-11
BAT-24VRED
KNEELPURPLE
C95-2
C95-10
SWITCHKNEELING
3. SEE REMOTE MIRROR SCHEMATIC FOR MIRROR SWITCH WIRING
13-48322R037A
DASH SWITCHES
79
LOW FLOORLOW FLOOR
08/03
40AFUSE
LEFT FRONTWHEEL HOUSE
87
87A8586 30
C96-12
6B
RE
LAY
1-1
BATTERY 24V
C.B. 20
PINKIGN-CB C102-15
RADIO-POSRED
24V FROM BATTERYDISCONNECT SWITCH
DISCONNECT SWITCH12V FROM BATTERY
TO REAR MTD FUSES24V POWER CABLES
TORQUE 140 IN. LBS.1/4-20 S'STL NUT
TORQUE 40 IN. LBS.
12 VOLT"LOAD SIDE"
SUPPLIED S'STLFLAT WASHER
TORQUE 140 IN. LBS.NYLOCK NUT SUPPLIED
FUSE BLOCK
FUSES/CIRCUIT BREAKERS12V SMALL POWER WIRES TO
100 AMP FUSE
FLAT WASHERSUPPLIED S'STL
12 VOLTTO OVERHEAD
12 VOLTTO REAR
PO
WE
RT
RA
NS
.P
OW
ER
EN
GIN
E24
V25
A
24V
10A
FRONT GROUND POINT PLATE
RADIO-NEGBLACK
C96-11
WH
ITE
RA
DIO
-IG
N
RADIO-2RED
RADIO-NEG-2BLACK
RADIO-IGN-2WHITE
RADIO-IGNWHITE
IGN-CBPINK
YELLOWIGN-ON
L/H "B" POST COVER
SIDE CONSOLE
SIDE CONSOLE
RADIO-IGN-2
RADIO-NEG-2WHITE
BLACK
RADIO-2RED
R/H DASHRADIO POWER
100A F
US
E
TO COACH 12V LOADS
TO COACH 24V LOADS
100A FUSE
IGN
-CB
PIN
K
12V +
BA
TT
ER
Y
NE
GA
TIV
E
ROTARY IGNITION SWITCHCLOSED IN ALL POSITIONSEXCEPT "OFF"
FUSE ASSEMBLY DETAIL
SEE DETAIL
C102A-3
AIR TANK/ELECTRICAL COMPARTMENT
C102A-5
IGN-ONYELLOW
RADIO-IGNWHITE
12V +
IGN
ITIO
N
C.B. 8
24V
IGN-12V2YELLOW
NEG-15GREEN
10A
10A
13-40613R009A
TWO WAY RADIO POWER
80
LOW FLOORLOW FLOOR
08/03
FARE BOX POWER
C102-5
AIR TANK/ELECTRICAL COMPARTMENT
CB 31/7*
FARE-NEGGREEN
C49-9
C49-7
C49-6
FAREBOX-CBYELLOW
BATT 12V
SIDE CONSOLE
FA
RE
BO
XY
ELLO
W
"B" P
OS
T
CLEARBLACK
SHIELD
ABC
CLEARBLACK
FA
RE
BO
X
GR
EE
NF
AR
E-N
EG
FA
RE
-NE
GG
RE
EN
FA
RE
BO
XY
ELLO
W
W/REDUCED RELAYS*DENOTES CB #
13-48854R000B
81
LOW FLOORLOW FLOOR
08/03
H20-GARED
YELOIL-GA
VM-NEGGRN
REDVOLT-24
VO
LT-24
RE
D
YELIGN-12V
FUEL-GABRN
BLUPNL-LTSC94-5
C94-6
C94-7
C94-3
C94-2
C94-9
C94-1
GRNNEG-15
GRNNEG-15
C93-2 BLUPNL-LTS
BLUPNL-LTS
ORGDIM-SWI
12V+SEE DASH PNL LIGHTS SCHEMATIC
C102-6IGN-12V
YEL
IGN-12VYEL
VOLT-24RED
YELOIL-GA
REDH20-GA
BRNFUEL-GA
C101-6
C101-3
C101-1
C101-2C14A-2
C14A-1
C14A-3
C14B-8
ORGOIL-GA
H20-GARED
FUEL-GABRN
A157PPL
ORG
RED
BRN
OIL-GA
H20-GA
FUEL-GA
PPLA157
ENGINE COOLANTTEMP. SENDER
ENGINE OIL
PRESS. SENDER
C2-5
TRANSMISSIONE.C.U.
A157PPL C8A-M
ELECTRONIC FUELLEVEL SENDER
C245-A
C245-B
C207-A
ELECTRONICS
C245-D C207-D
LEFT DASH PANEL
LO-FUELBLU
FUEL-GABROWN
C8A
-AY
ELLO
WIG
N-12V
2
IGN-12V2YELCB-1
IGN-12V
H20-GARED
OIL-GAORG
RIGHT CEILING
OVERHEAD ELECTRICAL COMP.
C.B. 34
C.B. 13
NOTES: 1. THE TRANSMISSION E.C.U. PROVIDES 16SQUARE PULSES PER TAIL SHAFT REV.ON WIRE NO. 157 PURPLE.
GND AT DRIVERSPLATFORM NEXTTO DRIVERS SEATIN CONSOLE
CHASSIS GNDSETTEEOUTRIGGER
NE
G-3
GR
N
D1-23 C-D1-27
BULKHEAD COMPARTMENT
LOW FUEL LAMPGND INPUT
S+
WHITE GND
RED
S+
+ S
PNL-LTSBLU
BLUPNL-LTS
PNL-LTSBLU
NEGGRN
GRNNEG
GRNNEG
A157
PP
L
34 2
78 6
1
5
IGN-12VYEL
IGN-12VYEL
IGN-12VYEL
COOLANT TEMPGAUGE
ENGINE OILPRESSURE GAUGE 24V
VOLTMETER
GAUGEFUEL LEVEL
SPEEDOMETERDUAL AIR GAUGE
+
-
VM
-NE
GG
RN
OIL-GAYEL
H20-GARED
C400-E
3
C400-L6
C8A
-B
C400-D3(VOITH)
C94-4 GRNNEG
ELE NOISE FILTER
C262-6PPLA157 C94-8 C263-6
C14B-1
C14B-2
C67-10205
IGN-12VYELLOW LO
-FU
EL
BLU
E
C245-C C207-CBLUELO-FUEL
LO-F
UE
LB
LUE
IGN
-12V2
YE
LLOW
TRANSMISSIONE.C.U.
(ALLISON) CS-30157
C208-C PPLA157
TANC403-4
WITH ALLISON TRANSMISSION
BULKHEAD COMPARTMENT
C402-6
SE
E N
OT
E 2
2. CONNECTOR DESIGNATIONS W/ALLISONTRANSMISSION
SE
E N
OT
E 2
C403-14
C14B-8
C14B-3
LOW FUEL
C127-1
C127-9GRNNEG-12
BAT-24V4RED
BAT-24VB1-38
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT
C.B. 23
C
C.B. 16
VOLT-24RED
C102A-12VOLT-12
YEL
C102A-15
12VVOLTMETER
+
-
VM
-NE
GG
RN
YELVOLT-12C94-6
VO
LT-12
YE
L
6A
6A
15A
10A
VOLT-12RED
13-48243R002A
FRONT GAUGES
82
LOW FLOORLOW FLOOR
05/03
13-48260R000C
INDICATOR LAMPS
83
LOW FLOORLOW FLOOR
05/03
LOW AIR & PARKING BRAKE SWITCHES
C193-B
C193-C
C193-A
C194-A
C194-B
C194-C
BAT-24VRED
LO-AIRBROWN
REDBAT-24V
LO-AIRBROWN
PURPLEPRK-BRK
BAT-24VC99-A
C99-B
C99-C
RED
C49-2
C49-8 C-A2-31 A2-31BROWNLO-AIR
C-A2-7 A2-7
PURPLEPRK-BRK
BAT-24VRED
C102-13 REDBAT-24V
C.B. 41
BAT-24V
DRIVERS CONSOLE
DRIVERS CONSOLE
UNDER DRIVERSPLATFORM
OVERHEAD PANEL
B2-3 C-B2-9
+-
WARBLERBEEPER
+-
B2-1 C-B2-1
PARK BRAKE SWITCH
LOW AIRSWITCHES
SWITCHESLOW AIR
INPUT
INPUT
24V OUTPUT
24V OUTPUT
C127-9
C127-1
BAT 24V
CB 47
LOW AIR BRAKES
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-23
PARK BRAKE
PROCESSOR OUTPUT
B1-19
*
* C.B.# 17 WITHREDUCED RELAYS
LOW-AIRBROWN
BEEPER-1BROWN
NEG-7GREEN
BAT-24V4RED
NEG-7GREEN
13-48274R000C
84
LOW FLOORLOW FLOOR
05/03
LOW HYDRAULIC FLUID WARNING
13-42460R004A
85
LOW FLOORLOW FLOOR
09/03
CHECK/STOP ENGINE LAMP
ENGINEE.C.M.
ENGINE
REAR ELECTRICAL PANEL
ISL'03
C-D1-2-9D1-15
GND INPUT
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
B1-5
C127-9
C127-1
"STOP ENGINE"
"CHECK ENGINE"
PROCESSOR OUTPUT
B1-3
REDBAT-24V4
NEG-12GNEEN
D1-16 C-D1-2-10
BAT-24V4
BAT-24VRED
PPL/WHT
PURPLESTOP-LT
WARN-LT
PP
L/WH
TW
AR
N-LT
ST
OP
-LTP
UR
PLE
BULKHEAD
GND INPUT
PURPLESTOP-LT
PPL/WHTWARN-LT
OVERHEAD ELECTRICAL PANEL
PPL/WHTWARN-LT
STOP-LTPURPLE
ISC/ISL
E.C.M.ENGINE
COMPARTMENT C1-44
C1-43
C8C-F
C8C-E
C406-14
C406-13
10A
CB 23
C1-1
C1-11
13-46468R006B
86
LOW FLOORLOW FLOOR
08/03
2324
NETWORK
2220
NETWORK
1817 19
4
21
8
12 16
FUSE
F4F3
113
157
210
614
F2F1
91
135
FUSE
F8F7
F6F5
242220
NETWORK
18
NETWORK
17 194
12
2321
816
FUSE
F4
311
F3
102
157 FU
SEF8
614
F7
F2 91
F1
135
F6F5
12
16
2122
NETW
ORK 24 23
8
NETW
ORK
20 19 4
18 17
FUSE
157
F8
6 14
F7
5
3 11
FUSE
2 10 1
F4 F3
F6
13
F5
9
F2 F1
CB 12
CB 11
CB 10
CB 9
CB 8
CB 5
CB 4
CB 3
CB 2
CB 1
CB 28
CB 23
CB 25
CB 24
CB 27
CB 26
CB 20
CB 19
CB 22
CB 21
CB 18
CB 17
CB 29
CB 30
CB 32
CB 31
CB 16
CB 15
CB 14
CB 13
CB 7
CB 6
CB 33
CB 34
MASTER SWITCHINTERLOCK
EDGE OVER RIDELIFT-U SENSITIVE
OUT-A1-5
ST
UD
24V B
AT
T
INT. LT. JCT.RIGHT
INT. LT. JCT.LEFT
GND. JCT.# 1
GND. JCT.# 2
GN
D. S
TU
D
ST
UD
12V B
AT
T
HORNRELAY
12 VOLTPOWERRELAY
RELAYIGNITION24 VOLT
RELAYPOWER24 VOLT
24 VOLT
24 VOLT
24 VOLT
12 VOLT
#17 DASH SWITCHES
#18 INTERIOR LAMPS
#20 IGNITION SWITCH
#19 INTERIOR LAMPS
#21 PLC MODULE C1
#22 DASH SWITCHES
#23 LIGHT BAR INDICATOR
#24 PLC MODULE B3
#25 RAMP
#26 DASH SWITCHES
#27 DASH SWITCHES
#28 PASSENGER PULL CORD
#1 EXIT DOOR (LAMPS)
#2 PLC MODULE A1
#3 SPARE
#4 HORN
#5 PLC MODULE B4
#6 TURN SIGNALS
#8 RADIO POWER
3
12
6
15
C117 RT. CEILING HARNESS
9
11 10
14 13
45
8 7
2 1
C167 LEFT CEILING HARNESS
C119 RIGHT CEILING HARNESS
3 2 1
9
6
12
15
8 7
5 4
11 10
14 13
321
3 2 1
8 9
65
1211
1514
7
4
10
9
6
12
13
15
8 7
5 4
11 10
14 13
C102
C117
7
32
965 8
1 4
C127
POWER TO INDICATOR LAMP "BAR"
24 VOLT
#7 FAREBOX
#30 ELECT. WIPERS
#29 STOP REQUEST
POWERRADIO
RELAY
RAMP RELAY
HTD
24 VOLT
MIRROR
#31 DRIVER HEATER
#32 DRIVER FAN
#12 EXIT DOOR
#9 DASH SWITCHES
#10 HEADLAMPS
#11 SPARE
C119 C167
#33 P.A. SYSTEM
#34 VOLTMETER, 24V
ALARMRELAY
FIRE #13 DASH SWITCHES/GAUGES
#14 DASH SWITCHES
#15 HEATED MIRORS
#16 VOLTMETER, 12V
RR. SIGN
RELAYW/C SYMBOL
INT-DISBLU
REDBAT-24V
BROWN
BROWNOUT-INT
INTRLOC
LFT-SWRED
SEN-ORRED
1413
10 11
15
12
1
4
7
2
5
8
3
6
9
1413
10 11
15
12
1
4
7
2
5
8
3
6
9
C102D DASH HARNESS
1413
10 11
15
12
1
4
7
2
5
8
3
6
9
C102 DASH HARNESS
C102A DASH HARNESS
RED
NEG-12GRN
BAT-24V4BAT-24V4
NEG-12
NEG-12
RED
GRN
GRN
BAT-24V42RED
PTT-SW
8
WHT 5
3
9
6
1
7
4
B3B2
B2 B3
B4
CON B4-4
CON B4-1
B4-12VYEL 1
CON B4-2HDLT-BAT
NEG-8
7
2
B4-IN-7
B4-IN-2
B4-IN-8WHTB4-IN-1WHT
WHT8
1 WHT
GRN
GRN
ORG
6
3
5
4
C
B
A
CON B4-3
NEG-4
1012 1011 12 11
15
C102A
1314 1415
C102D
13
7
1
4
9 8
3
6
2
5
9 8
3
6
2
5
7
4
1
MO
DE
L: T
2-D
IO-8
88-K
6-G
L1 G
ILLI
G P
/N:1
3-41
361-
028
AZ
US
A, C
A U
.S.A
.C
ON
TR
OLS
CO
RP
.
DIN
EX
AZUSA, CA U.S.A.
GIL
LIG
P/N
:13-
4136
1-02
8M
OD
EL:
T2-
DIO
-888
-K6-
GL1
DIN
EX
AZ
US
A, C
A U
.S.A
.C
ON
TR
OLS
CO
RP
.
DINEX
CONTROLS CORP.
MODEL: T2-DIO-PWM-888-K7 GILLIG P/N:13-41361-031
RAISEBLU
BAT-24V4RED
LAMP-TE
BAT-24V4BLU
RED
73
REDBAT-24V4
4 8
2 6
BEEPER-1BRN RED
CHIME-11 5
IN-B2-20
REDBAT-24V4WHTBLU 11
BAT-24V4RED 12
IN-B2-1910
15
16
14
PPLKNEELLO-AIR
BRN 9 13
26
28
27BAT-24V3
25RAMP-REL
BAT-24V4
IN-B2-2219 WHT
20 RED
18
23
RED24
22
HOLD 17 PPL RED21
NEG-7 GRNORG 31
BAT-24V4RED 32
LT-DIS30
35
36
34
GRNNEG-7 OUT-B2-8
WHT 29 33
INT-DIS
INT-LTS1
BLUEINTLT-CB1
WHT BLU3BAT-24V3RED 4
PTT-SW
CHIME-2WHT
2
1 PPL 21
23
22IN-B3-22
OUT-INT
24BAT-24V3
19 WHT15 WHT11 WHTPPL7BAT-24V3INTLT-CB2
PPL8 RED12INTLT-CB2PPL16 RED20
PUL-CRD
MIR-REL
PUL-CRD1
INT-LTS2
6
BLUE5
10
BLU9
IN-B3-21
LAMP-1B
14
RED13
18
BRN17
GRN 35WHT27 31
32BAT-24V3
28SIGN-BATPPL RED 36
OUT-B3-829
30
25
26
SIGN-IGNRED
FIRE
WHT
NEG-9
33
34
NEG-9GRN
A25L BLUPNL-12VPPL
ORG
BRNPPL 1MRKRS
A25R BLU 8
2STEP-HTR
A26R 7 ORG
STP-SIGNWHT
A26L
3
6
4
5
WHT
BRNSTEP-HTR
RAMP-BAT
RED
WHTFARE-LT
BAT-12V3YEL
IN-B2-19
BLU
WHTCHIME-2
RED
WHT13 14
WHT
IN-B2-20
WHTSTOP-SIGN
10
4
7
11
5
8
IGN-12V2YEL
BAT-24V5 OUT-B2-8
IGN-24V2RED1 2
15
12
6
9
3
BROWNTURN-CB
HORN
BLUEPPL
REDBAT-24V1
MRKRSWHITEHORN-SW
10
13
7
FT-IGNRED
11
14
8
IGN-CB
WHT
PINK 15
12OUT-B3-8
INTRLOCBRN 9
YEL
RED
BLUMAP-LT
IGN-24V41
4FARBOX-CB
ORG 2
5
FAN-CB
IGN-12V
YEL
YEL
3
6
BAT-12V1
A26L
RED
DR-FAN
WHT
ORG
ORGA26R
13
A25RBLUDOR-LTBLU 10
7
4
ORG 14VOLT-24RED 15
RAMP-POW11
8
RADIO-IGN
5
YEL
PPL
12
9PNL-12V
A25LBLU 6
MASTERRED 1
MIR-HTBLU 2
IGN-ONYEL 3
RAISEBLUE
BRNA128
WHT
HOLD
PUL-CRD
YELBAT-12V
13
10 PPL
PPLKNEEL
4
7
1
IGN-24VRED
SPARE-2WHT
14
11
15
12
IGN-12V1
MRKRS
SPARE-3WHT
5
8
YEL
PPL
2
6
9
3
WHTPUL-CRD
PUL-CRD1PPL
WHT
PPLMRKRS
ORG ORG
IGN-24V1RED13
10
7
14
11
8
15
12
9
ORGLAMP-2
ORG
SPARE-4
LAMP-5
ORGLAMP-1A
ORG
LAMP-6
LAMP-3
DR-FAN
REDLAMP-1B
ORGLAMP-4
4
1
5
2
6
3
LAMP-1BLAMP-1A LAMP-2
BLU 13DOR-LT
10
4ORG
LAMP-6ORG 7
LAMP-3
ORG 1
BAT-24V2
PUL-CRD1
RED 14MASTER
11
15RED
PPL 12
5ORG
IN-D1-21WHT 8
LAMP-4
RED 2
6ORG
STP-SIGNWHT 9
LAMP-5
ORG 3
14
327
85
6
14
23
A
B C
57
68
VOLT-12
13-48264R003A
OVERHEAD ELECTRICAL PANEL
87
LOW FLOORLOW FLOOR
Chapter 7- Miscellaneous
M ISCELLANEOUS
88
LOW FLOORLOW FLOOR
09/03
F
F
B3-4C-B3-13
87 87a85
86 30
HEATED MIRROR-1
HEATED MIRROR-2
CON 97A-2
CON 97A-1
BATTERY
C102D-4
CB 26
OVERHEAD ELECTRICAL CABINET
SWITCHHEATED MIRROR
C-A2-22+24V INPUT
A2-22 BLUEMIRR-SW
BAT-24V5RED
YELLOW
IGN-12V3CB 15
12VIGNITION
DESTINATION SIGN GLAZING
NOTE: 1) THE OUTPUT B3-4 WILL BE ON FOR 15 MIN AND THEN OFF IF THE MIRROR MOMENTARY SW INPUT A2-22 IS ACTIVATED.
CON B-2
CON B-1
SPARE-B-4
SPARE-B-3
C102A-2MIR-HT
BLUE
NEG-19GRN
BAT-24V5RED
MIR-HTBLUE
BLUEMIR-HT
MIR-RELBLU
NEG-2GRN GRN
NEG-15
OPTIONAL CONNECTION TO DESTINATION SIGN GLAZING
10A
10A
24V
RELAY 1-4
HEAT MIRROR (CS)
HEAT MIRROR (SS)
SEE HARNESS50-45207-000
12V
12V
GNDGRN
GLA
ZIN
GY
ELL
OW
24V
24VOUTPUT
13-48422R001A
HEATED MIRRORS
89
LOW FLOORLOW FLOOR
01/02
13-48277R002A
REMOTE CONTROLLED MIRRORS
90
LOW FLOORLOW FLOOR
11/02
13-40503R010A
PA SYSTEM
91
LOW FLOORLOW FLOOR
05/03
13-46434R004A
ELECTRICAL SYSTEM MONITOR
92
LOW FLOORLOW FLOOR
08/03
CRIME ALARM
SYSTEM INITIATE
SYSTEM OPERATION:1. SYSTEM INITIATE SWITCH MOMENTARILYOPENS CKT. TO 2-WAY RADIO AND MOMENTARILYSENDS +24V (NOM) TO ACTIVATE "EMERGENCY"MESSAGE ON DESTINATION SIGN.2. ENTER A DESTINATION TO RESET THE SIGN.
SWITCH
C336-1WHTCRIME YELLOW
C336-3
C336-2ALARM-1BROWN
BROWNALARM-2
C336-4
ORANGE
BLUE
2-WAYRADIOALARM
REDBAT-24V
BAT-24V
BAT-24VRED
C102-13
AIR TANK/ ELECTRICALCOMPARTMENT
GREEN
C132-1TO DEST.SIGNALARMWHT
CRIME
CONSOLEDRIVERS SIDE
C.B. 41/17*
C101-15
C166-3
C166-4
BOXRADIO
BROWN
W/REDUCED RELAYS*DENOTES CB #
13-40400R004C
93
LOW FLOORLOW FLOOR
Chapter 8- Multiplex System
M U L T I P L E X
94
LOW FLOORLOW FLOOR
08/03
A1
A2
B3
B2
D1
D3
D2
PM
S
C1
B1
D4
B4
IO-90818R003A
COMMUNICATION RING DIAGRAM
95
LOW FLOORLOW FLOOR
05/03
13-46372R004A
PLC POWER
96
LOW FLOORLOW FLOOR
09/03
LOW FLUID (TRANS)STEP WELL HEATER
TRANS. TEMPLOW AIR (FRT. DOOR)
AID PASSENGER
HIGH VOLTAGE 24V SYSTEM
COMM FAULT
RIGHT TURNCHECK 12V SYSTEM
HEATED MIRRORS
13-41361-027
TYPE 'B' CABLE
WARNING-INTERLOCK DEACTIVATED
CHECK TRANS. (DO NOT SHIFT)
BOOST PUMP SIGNAL
REAR BRAKE SWITCH
NEUTRAL SIGNALFLOOR HEATER ENABLE
HOT ENGINE
ALTERNATOR ENABLE
FRONT DOOR FULLY OPENFRONT DOOR FULLY CLOSED24 24 LOW HYDRAULIC FLUID24 24
TOUCH BAR (N/A)
HIGH BEAM
REAR RUN SWITCH
INTERNAL LAMP, REARFRONT BRAKE SWITCH
IN-A2-20RAMP IN MOTION
HEATED MIRROR
IN-A2-18
LOW AIR
RAISEKNEEL
BATT SWITCH
CRIME
INTERNAL LAMP, ALLBOOSTER PUMP
FRONT DOOR OPENSENSOR POWER ENABLE
C1 #71
DOOR LIGHTRAMP/KNEEL LIGHT
RAMP/KNEEL BEEPERSPARE 24V
EXIT DOOR DUMP VALVE
REAR DOOR UNLATCH SOL.
EXIT DOOR UNLATCHED
EXIT DOOR SENSITIVE EDGEEXIT DOOR OPEN
REAR DOOR OPEN SOL. N/A
19 PARK POSITION/MARKERS
MARKER LIGHTS
PANEL LIGHTS
FRONT STEPWELL HEATERC.S. PWM LOW BEAMS.S PWM LOW BEAM
STOP REQUEST LIGHT
13
161718
1514
1920
232221
8
109
12V
12V
12V
12V
12V4
67
5
1112
12V3
LEFT TURNRIGHT TURN
S.S. HIGH BEAMC.S. HIGH BEAM
13-41361-031
FRONT DOOR ACTIVEREAR DOOR ACTIVE
B4 #75
12V
12V12
2423
2120
22 HAZARD
13
161718
1415
2019
212223
12V
12V
24V
24V
24V
8910
654
7
1112
24V3
24V
24V
21
A2 #65
1516
1213
10
14
LEFT TURN
DOOR OPENIGNITION AT ALL
RIGHT TURNFRONT DOOR LIGHT
9
1516
1213
1011
14
1817
NIGHT RUNDAY RUN
12V1
724V8
24V
12V
12V
12V
12V
543
6
12V2
9
11
1
78
543
6
2
13-41361-028
A1 #64
PARKING BRAKE ON
FAST IDLE SWITCHDIAGNOSTIC REQUEST
LOW AIR FRONT DOOR
VENT HIGH
CHIME SINGLE
HEAT HIGHHEAT LOWVENT LOW
CHIME
COOL
IN-A2-3
OVER RAISE
RAMP ENABLE
25
3132
2829
2627
30
17
2324
21
1920
22
18
13-41361-030 A2 #66
4319 PARK BRAKE
DOOR ALARMSPEED SWITCH
FAST IDLE
SPARE
STOP ENGINE (509)
WAIT TO STARTATC-LT
LOW FLUID (HYDRAULIC)LOW AIR (BRAKES)
CHECK ENGINE (419)SPEED INDICATIONLOW 24V(VANNER)EM70 BATTERY BALANCERETARDER INDICATION (125)
LOW FUEL
EPLREVERSE
STARTER TEMPCHECK TRANS. LAMP
TRANS. TEMP LIGHTBATTERY-HI (CHARGE DISABLE)
ENG BRAKE
THROTTLE INTERLOCK
RETARDER REQUEST
DIA REQUEST
NEUTRAL TO RANGE INHIBIT
TRANS BRAKE
13-41361-026
LOW VOLTAGE 24V SYSTEM
13
20
2223
161718
1415
19
21
8
109
654
7
1112
3
GND
GND
GND
GND
GND
GND
13-41361-028 D1 #72
21
GND
GND
2423
202122
13
161718
1415
20
2221
19
23
WIF
SPARE
ABS LAMP
8
109
654
7 24V
24V
24V
24V
24V
1211
3 24V
LOW FAN
SPARE
COOLVENT
D2 #73
21
24V
24V HEATA/C RUN
4847
444546 FIRE
LOW COOLANT
STOP ENGINE
CHECK ENGINEENGINE MAINT
13-49324F000
LIFT SAFETY DISABLE
BIKE RACK DEPLOYEDLEFT TURN SIGNAL
LOW OIL (ENGINE)
ANTI-LOCK
REAR IGNITIONCOOLANT TEMP
EXIT DOOR
"WAIT TO START""STOP REQUEST"
RETARDER APPLIEDTRACTION CONTROL
RETARDER DISABLED
9
1516
1110
1312
14
1817
1
78
3456
2
RAMP
B1 #67
33
3940
3534
3736
38
4241
STARTER
HIGH BEAM
A/C STOPCHIME
NO CHARGE
BRAKES
LOW FUEL
25
3132
27282930
26 FAST IDLE
SEAT BELT
KNEEL
B1 #68
EM70 FAILURE24 24 SPARE
13-41361-028
BRAKE INTERLOCK ONDESTINATION SIGN POWER
INTERIOR LIGHT CURBSIDECHIME-2 (AID)
INTERIOR LIGHT FRONT ROW
INTERIOR LIGHT STREETSIDESIGN GLAZING/HEATED MIRRORS
INTERLOCK DISABLEPULL CORD 1 (AID PASSENGER)PULL CORD (STOP REQUEST)
EXT POWER SUPPLY
HYDRAULIC OIL PROBE POWER
STARTER ENGAGED
BRAKE LAMPSSPARE 12VREVERSE LAMPSTAIL LIGHTS SIGNAL
A/C FAILURE
CHARGE
OIL PRESSURE SWITCH
RIGHT TURN SIGNAL
13
161718
1415
2019
2221
23
8
109
12V
12V
12V
12V
12V
654
7
1112
12V3MARKERSLEFT TURN SIGNAL12V
12V21
D3 #74 13-41361-028
212223
18
2019
24
INTERIOR LAMP SSWATER VALVEWEB RUN
A/C BOOST PUMP REQUEST
INTERIOR LAMP CS
PASS HEATER
START REQUEST
13
161718
1514
2019
232221 SPARE
SPAREENGINE RUN
10
12
89
654
7
11
3
12V
12V
24V
24V
24V
24V
SPARE
POWER PLUS
13-41361-028
START SOLENOID
D4 #76
12 24V
24V
FIRE
212223
18
2019
24
RAMP ENABLE
CHIME-1(STOP)
13-41361-028
LOW AIR ON BRAKES BUZZER
EXTERNAL LIGHT TEST
B2 #69
7SPARE 24V24V
1415
1110
1312
9
1716
8
HOLDRAISEKNEEL
BUZZER
24V624V
24V
24V
24V
24V
24V
23
54
1
B3 #70
724V
1415
1110
1312
9
1716
8
6
23
54
1 24V
24V
24V
24V
24V
24V
24V
RETARDER SWITCH
SEAT BELT SWITCH
LIGHT BAR PUSH TEST
RETARDER SWITCH
IO-72594R001A
MULTIPLEX SYSTEM INPUTS & OUTPUTS
LOW FLOORLOW FLOOR
9709/03
MULTIPLEX SYSTEM LADDER DIAGRAM
B1-F05
FIRE FLAG
0.5S OFF
FLASH0.5S ON
0.5S OFF
FLASH0.5S ON
B1-F05
FIRE FLAG
A1-1
LEFT TURN
A1-2
A1-3
GROUND LIGHT
RIGHT TURN
FRONT DOOR
EXT LT TESTFLAG
A1-F07
FRONT DOOR SW.NIGHT RUN
PARK/MARKER
MOTORSTARTER
D3-18
A1-19
EXT LT TEST
A1-F07
FLAG
FLASH0.3S ON0.3S OFF
TESTEXT. LT.
A1-22
SW.RIGHT TURN
HAZARD
A1-F07 A1-20
A1-23A1-18
D3-18
MOTORSTARTER
A1-F07
EXT LT TESTFLAG
TESTEXT. LT.
A1-F07
LEFT TURN
A1-22
SW.
A1-21
HAZARD
FLASH0.7S ON0.7S OFF
A1 #64
IO-72594R002A
, 1 OF 26
LOW FLOORLOW FLOOR
9809/03
MULTIPLEX SYSTEM LADDER DIAGRAM, 2 OF 26
IO-72594R002A
IGN ALLFLAG
PARK BRAKE
A1-F06 A2-7
A1-18
NIGHT RUN
PARK
A1-19
EXIT DOOR SW
FRONT DOOR SW
A1-24
A1-17
DAY RUN
DISABLE
A1-23
DISABLE
(ALL POSITION)
EXT LT TEST
IGN ALL FLAG
TURN ON
EXT LIGHTS TEST SW
EXT LT TEST
A1-F07
FLAG
1.5 MIN
FLAG
B2-17 A1-F07
A1-F06
DOOR OPEN
A1-8
IGN. SWITCH
A1-6SPARE
A1-7
A1-4SPARE
DISABLE
SPAREA1-4
LOW FLOORLOW FLOOR
9909/03
B3-24
FIRE
A1-21
B3-17
A1-22
A2-23
A1-17
A1-17
REAR RUN
LEFT TURN
TEST
DAY RUN
LT. BAR
HAZARD
REAR RUN
DAY RUN
A2-23
B1-2
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
D1-15
B2-F08
STOP ENGINE
EPL
D2-17
BIKE RACK
B2-F08
D1-16
CHECK ENGINE
B2-F08
STOP ENGINEB1-5
ENGINE MAINTB1-4
BIKE RACK
DEPLOYED
CHECK ENGINEB1-3
A1-22
A1-21
LEFT TURN
LIGHT BAR B1-67, B1-68
HAZARD
B1-F05
FIRE FLAG
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
D3-18
STARTERMOTOR
DISABLE (A2-1)
EXT. LT. FLAG
A1-F07
TEST
A1-F07
EXT. LT. 0.5S OFF
FLASH0.5S ON
FLASH
0.7S OFF0.7S ON
LEFT TURNB1-1
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
D1-10
WIF
LT.BAR REM. CTL. FLAG REF. B2 PP.13
IO-72594R002A
MULTIPLEX SYSTEM LADDER DIAGRAM, 3 OF 26
LOW FLOORLOW FLOOR
10009/03
0.5S FLASH
LT. BAR REM. CTL. FLAG REF. B2 PP.13
0.5S FLASH
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
B2-F08REF B2-2
STOP REQ FLAG
B2-F02
B2-F08
HOT ENGINE
REAR RUN SW.
B2-F08
A2-23
B2-F08
LT.BAR REM. CTL. FLAG REF. B2 PP.13
D1-21
D2-18
FLASHER
0.5S FLASH
A2-23
REAR RUN
DAY RUN
A1-17
B2-F08
A2-2
RAMP ENABLE
B2-F08
DISABLE
B2-F08
D3-20
LOW ENGINE OIL PRESS
B1-13
STOP REQUEST
(HOT ENGINE)COOLANT TEMP.B1-10
REAR IGNITION
B1-12
(N/A)WAIT TO START
B1-11
B1-7RAMP
LOW COOLANTB1-8
BLANK
B1-9
ENGINE LOW OILB1-6
WAIT TO START
LT.BAR REM. CTL. FLAG REF. B2 PP.13
MULTIPLEX SYSTEM LADDER DIAGRAM, 4 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10109/03
DAY RUN
REAR RUN
A2-23
A1-17
RETARDER
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LOW 24V
EM70 FAILURE
B2-F08
D3-24
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
EXIT DOOR UNLATCH
RETARDER INDICATION
LT.BAR REM. CTL. FLAG REF. B2 PP.13
PARK BRAKE ON
A2-7
B2-F08
D1-18
B2-F08
B2-F08
C1-22
LOW VOLTAGE24VDC SYSTEM
EXIT DOOR
PARK BRAKEB1-19
B1-20
APPLIED
B1-18
LT.BAR REM. CTL. FLAG REF. B2 PP.13
RETARDER SWITCH
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
D1-20
ATC
D1-22
B2-F08
ABS LAMP DRIVER
B2-F08
D2-23
D3-19
RETARDER
B1-17
CONTROLTRACTIONB1-16
DISABLE
B1-15ANTILOCK
B1-14
MULTIPLEX SYSTEM LADDER DIAGRAM, 5 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10209/03
LOW HYD FLUIDM CUT OFFDELAY FLG REF , PP 20
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
B2-F08
FAST IDLE
HOLD
D1-7
LOW HYDRAULIC FLUID
B2-F08
D1-F05
B2-6
ZERO SPEED INDICATION
EXIT DOOR SEN EDGE
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
DAY RUN
REAR RUN
A2-23
A1-17
A2-31
LOW AIR SWITCH
D1-24
B2-F08
B2-F08
B2-F08
C1-19
D1-17
KNEEL
FAST IDLEB1-26
(HYD)
B1-25
SPEED SWITCH
LOW FLUIDB1-24
LOW AIR
(BRAKE)
B1-23
DOOR ALARMB1-22
B1-21
MULTIPLEX SYSTEM LADDER DIAGRAM, 6 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10309/03
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LOW FLUID(N/A)
W/C REQ FLAG
B2-F08
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LOW AIR(FR DR)
LT.BAR REM. CTL. FLAG REF. B2 PP.13
REF B3-1, PP14
B2-F08
A1-F06
B2-F08
B2-F08
B2-F08
TRANS TEMP
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
A2-23
DAY RUN
A1-17
REAR RUN
AID PASSENGER
B2-F08
DISABLE
DISABLE
B3-F01
B1-31LOW FLUID(TRANS)
STEPWELLB1-32
HEATER
B1-30
OFF 0.5 SEC.ON 0.5 SEC.ON 5 TIME
IGN. ALL
A2-4
D1-13
(FRONT DOOR)
SEAT BELTB1-29
TRANS TEMP
B1-27
LOW AIRB1-28
A2-7
PARK BRAKE
A2-1
SEAT BELT
NEUTRAL
D2-20
0.5S FLASH
MULTIPLEX SYSTEM LADDER DIAGRAM, 7 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10409/03
STARTER
AC STOP
LIGHT BAR
INTERLOCKB1-36
DISABLE
B1-37HIGH BEAM
LOW FUELB1-38
NO CHARGEB1-39
INTERLOCK DISABLE SW
B2-F08
B4-5
HIGH BEAM
B2-F08
B2-F08
LOW FUEL
D1-23
D3-23
CHARGE
B2-F08
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
STARTER ENGAGED
B2-F08
D3-18
D3-17
A/C FAIL
B2-F08
B2-17
LT.BAR PUSH TO TEST
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B3-18
DAY RUN
A1-17
A2-23
DAY RUN
REAR RUN
A1-17
TIMERON 0.03S
OFF 0.97S
ON 0.03SOFF 0.97S
5 TIMES
CHIME,B1-35
B1-34
B1-33
D2-20
NEUTRAL
A2-7
PARK BRAKE
A2-1
SEAT BELT
MULTIPLEX SYSTEM LADDER DIAGRAM, 8 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10509/03
MULTIPLEX SYSTEM LADDER DIAGRAM, 9 OF 26
LT.BAR REM. CTL. FLAG REF. B2 PP.13
REAR BRAKE SW.
RETARDER APPLIED
LT.BAR REM. CTL. FLAG REF. B2 PP.13
T2 ( 0 - 15)
BRAKE INTERLOCK
LT.BAR REM. CTL. FLAG REF. B2 PP.13
EM70 BATT BALANCE
LT.BAR REM. CTL. FLAG REF. B2 PP.13
D3-24
EM-70 FAIL
D1-19
B2-F08
COMM FAIL
B2-F08
D1-11
REAR RUN
DAY RUN
A2-23
B2-F08
STOP BRAKE SW.
B3-6
A2-24
CHECK TRANS
B2-F08
D2-24
D1-20
A1-17
B1-43CHECK 12VSYSTEM
COMM FAULTB1-42
B1-40CHECK TRANS
B1-41BRAKE
IO-72594R002A
LOW FLOORLOW FLOOR
10609/03
MULTIPLEX SYSTEM LADDER DIAGRAM, 10 OF 26
A1-20
B3-24
DAY RUN
REAR RUN
LT. BAR
HAZARD
RIGHT TURN
A1-17
A2-23
A1-22
B3-17
A2-23
A1-17
REAR RUN
DAY RUN
TEST
FIRE
LT. BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
OVER VOLTAGE DETECTION
EM-70 FAIL
D1-14
DETECTEM70 OVER VOLTAGE
LATCH REF. D2 PP. 23
D2-F02
B3-24
FIRE FLAG
B2-F08
FIRE
B1-F05
D3-24
B3-24
FIREB1-F05
FIRE FLAG
24VDC SYSTEM
B1-47/23HI-VOLTAGE
FIRE FLAG
B1-46FIRE
B1-F05
RIGHT TURN
B1-F05
FIRE FLAG
HAZARD
LT.BAR REM. CTL. FLAG REF. B2 PP.13
LT.BAR REM. CTL. FLAG REF. B2 PP.13
B2-F08
B3-4
HEATED MIRROR
B2-F08
EXT. LT. FLAG
A1-F07
MOTORSTARTER
D3-18
EXT. LT. TEST
A1-F07
A1-22
A1-20
0.3S OFF
FLASH0.3S ON
HEATED MIRRORS
B1-45
0.5S OFF
FLASH0.5S ON
RIGHT TURNB1-44
IO-72594R002A
LOW FLOORLOW FLOOR
10709/03
10 S WARBLER ENABLE FLG
STOP CHIME
HOT TRANS OIL
SENS. EDGEEXIT DOOR
STOP ENGINE
HOT ENGINE
LOW ENGINE
B2-F02
STOP CHIME FLAG
3 SEC
DELAY
ALL POS. FLAG
A2-23
DAY RUN CHARGE
SINGLE CHIME
ACTIVE SWREAR DOOR
A1-F06
IGN ALL FLAG
A1-17
ACTIVE SWFRONT DOOR
A1-23
D3-23
B2-F06
LOW AIR
A2-31
A2-11
A1-24
B2-F02
B2-2
CHIME
REAR RUN SW.
A1-F06
IGNITION ON
A2-23
PULLCORD SW
B3-20
MOTORSTARTER
A2-10
CHIME
D3-20
OIL PRESS
UNLATCHED
EXIT DOOR
D1-13
D1-15
D2-18
IGN ALL
A1-F06
FLAG
D3-18
B2 #69
PARK BRAKE ON
A2-7
C1-22
BUZZER ENABLE
FLAG
STOP CHIMEB2-F02
FLAG
B2-F04
ON
BRAKE BUZZER
B2-3LOW AIR ON
STOP CHIMEB2-2
1 SECDELAY OFF
B2-F04
3 SEC BUZZERENABLE FLAG
B2-1
BUZZER
C1-19
REAR RUN
IGN ALL
A1-F06
FLAG
MULTIPLEX SYSTEM LADDER DIAGRAM, 11 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10809/03
STOP ENGINE
HOT ENGINE
RAMP ENABLE
A2-2
CHECK ENGINE
LOW ENG. OIL PRESS
IGN ALLFLAG
A1-F06
FLAGIGN ALL
A1-F06
DISABLEINTERLOCK
B3-18
IGN ALL
A1-F06
FLAG
D1-15
D1-16
D3-20
D2-18
INTERLOCK
B3-18
DISABLE
RAISE SW.
B2-6
KNEEL
B2-4
HOLD KNEEL
ZERO SPEED
D1-17
RAMP ENABLE
A2-2
IND.SPEED
D1-17
RAISE
B2-5
RAISE
B2-05
A2-28
2.5 SEC.
TIMER ONTURN ON
B2-6
HOLD
RAISEB2-5
B3-18
INTERLOCKDISABLE
ENABLE
SPEED SW.
D1-17
(FLAG)
KNEEL SW.
A2-29
20 SEC. BUZZERENABLE (FLAG)
B2-F05 DELAY
10 SEC.ON
B2-F04
BUZZER3-SEC.
ON20 SEC.
DELAY
KNEELB2-4
WARBLE10 SEC.B2-F06
ENABLE (FLAG)
20 SEC. BUZZERB2-F05
ENABLE (FLAG)
TRANS TEMP
D1-13
MULTIPLEX SYSTEM LADDER DIAGRAM, 12 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
10909/03
HOLD
B2-6
DELAY-ON
LIGHT BAR PUSH TO TEST
STARTUP DONE
B2-F07
FLAG
B3-17
FLAGIGN ALL
TURNON
3 SEC
5 SEC.
INDICATIONFLAG
ALL POS.IGN.
DISABLE
A1-F06
OPENDOORFRONT SPEED
A1-F06 C1-23 D1-17
INTERLOCKDISABLE
NEUTRAL
DOORFRONT
LOW AIRBRAKEPARK
D2-20 A2-4 A2-7B3-18
B2-F08LIGHT BARREMOTE CONTROL
FLAG
STARTUP DONE
B2-F07
FLAG
RAMP ENABLE
SPAREB2-8
POWER
B2-7
MULTIPLEX SYSTEM LADDER DIAGRAM, 13 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11009/03
SINGLE CHIME
ACTIVE SWREAR DOOR
A2-25
INTERIOR LAMPREAR
EXT PWR
B2-24
SUPPLYSTARTERMOTOR
REVERSEINDICATION
D3-18 D1-10
ALL POS. FLAG
B2-24
EXT PWR SUPPLY
CLOSEDFRONT DOOR
STARTER
D3-18
MOTOR INDICATIONREVERSE
D1-10
A1-23
A1-F06
IGNITION ON PULLCORD SWAID PASS
B3-19
CLOSED
C1-24
FRONT DOOR EXIT DOOR UNLATCHED
C1-22
INT. LAMP ALL
INT. LAMP CURBSIDE
A2-25
A2-27
INT. LAMP CURBSIDE
FRONT DOOR CLOSED
EXIT DOOR UNLATCHED
C1-24
INTERIOR LIGHTB3-5
FRONT ROW
B3-3INTERIOR LIGHTSTREETSIDE
AID CHIME FLG
AID CHIME
B3-F01
AID CHIME FLG
A2-27
A2-25
INT. LAMP ALL
A2-11
A1-24
B3-F01
B3-1
C1-22
B3 #70
A2-10
CHIME
DELAY OFF
1 SEC
AID CHIME
INTERIOR LIGHT
FLAG
B3-2
CURBSIDE
B3-F01
AID CHIMEB3-1
B3-4 900
DELAY-OFFSECOND
HEATED MIRROR
A2-22
SWITCHHEATED MIRRORS
A1-17
IGNITION
B3-4
HEATER MIRROR
MULTIPLEX SYSTEM LADDER DIAGRAM, 14 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11109/03
MULTIPLEX SYSTEM LADDER DIAGRAM, 15 OF 26
BRAKE INTERLOCK
B3-7
POWER
DEST SIGN
BRAKE INTERLOCK
DISABLE
FLAG
A1-F06
IGN ALL
FRONT BRAKE
B3-8SPARE
B3 #70
A2-19
C1-22
FAST IDLE
EXIT DOOR UNLATCHED
B2-6
KNEEL
HOLD
RAMP IN MOTION
IGN ALL DISABLE
INTERLOCKFLAG
B3-6
B2-4
A1-F06B3-18
REAR RUN SW.IN REAR RUN
A2-23
D1-7
A2-2
RAMP
B3-6
INDICATION
A2-24
SPEED
D1-17
IIO-72594R002A
LOW FLOORLOW FLOOR
11209/03
B4 #75
SINGLE CHIME
A1-17
TEST FLAG
EXT LT
A1-F07
DAY RUN
NIGHT RUN
A1-18
A1-18
NIGHT RUN
ENABLE MODEFLOOR HTR
EXT LT TEST
PARK POS
D2-21
A1-F07
A1-F06
IGN AT ALL
A1-23
FRONT DOORACTIVE SW
NIGHT RUN
A1-18
A1-19
NIGHT RUN
PARK POS
A1-19
A1-24
REAR DOORACTIVE SW
CHIME
A2-11
A2-10
TEST FLGEXT LT
NIGHT RUN
A1-18
A1-F07
A1-18
FRONT STEPWELL
B4-6C.S. PWM LOW BEAM
B4-8S.S. PWM LOW BEAM
B4-2
HEATER
STOP REQ
B4-04
STOP REQ
AID PASS
B3-19
B3-20
B4-1MARKER LIGHTS
STOP REQUESTSIGN
B4-4
PANEL
LIGHTS
HIGH BEAM
A2-21
B4-7S.S. HIGHBEAM
BEAMC.S. HIGHB4-5
B4-3
DISABLE
STARTER MOTOR
D3-18
MULTIPLEX SYSTEM LADDER DIAGRAM, 16 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11309/03
REAR RUN SW.
A2-23
A1-F06
A2-23
A1-F06
RUN SW.REAR
REAR DOOR
A1-24
ACTIVE
ACTIVE
C1-F02
A1-24
REAR DOOROPEN ENABLE
INDICATIONSPEED
INTERLOCKSPEED
D1-17
ZERODISABLE
B3-18
D1-17
EXIT DOORUNLATCH
C1-22
DOORREAR
B3-18
DISABLEINTERLOCK
REAR DOOROPEN ENABLE
OPEN ENABLEREAR DRC1-F02
UNLATCHSOLENOID
REAR DOORC1-4
C1-F04
FRONT DOOR ACTIVE
OPEN (FLAG)FRONT DOOR
IGNITION ALL
OPEN ENABLE
C1-F02
REAR DOOR
IGNITION ALL
REAR RUN SW
FRONT DOOR
A2-23
C1-2
OPEN
A1-F06
C1-F03
A1-24
SWITCHREAR DOOR
6 SEC TIMER
0.4 SEC. OFF0.2 SEC. ON
FLAGIGNITION ALL
A1-F06
A1-F06
C1 #71
RAMP ACTIVESW.
A2-2
A1-23 C1-F04
OPEN SOLREAR DR
C1-03
FRONT DOOR
OPEN FLAG
FRONT DOOR
SENSOR POWERC1-1
ENABLE
OPEN
C1-2
IGNITION ALL
IGNITION ALL
MULTIPLEX SYSTEM LADDER DIAGRAM, 17 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11409/03
C1-F02
REAR DOOROPEN ENABLE
C1-F03
EXIT DOORSENSI EDGE
OPEN ENABLEREAR DOOR
EXIT DOORFULLY OPEN
C1-19C1-18
REAR DR
OPEN ENABLE
C1-F03DELAY OFF
2 SEC
MULTIPLEX SYSTEM LADDER DIAGRAM, 18 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11509/03
IGN ALL FLAG
A1-F06
RAMP IN MOTION
B2-6
HOLD
LIFT ENABLE
A2-2
B2-5
RAISE
C1-2
OPENFRONT DOOR
A1-F06
FLAGIGN ALL
C1-22
UNLATCHEDEXIT DOOR
EXT LT TESTFLAG
A1-F07
NIGHT RUN
A1-18
MARKER
A1-19
EXT LT TESTFLAG
A1-F07
DOOR GROUNDC1-8
LIGHT
REAR RUN SW
A2-23
B3-18
DISABLEINTERLOCK
LOW AIRFRONT DOOR
A2-4
TIMER
1 SEC.
FLASH
OFF6 SEC.
DELAY
DISABLE
A2-28
KNEEL
A2-29
B2-5
A2-19
RAISE
RAISEDISABLE
INTERLOCK
B3-18
RAMP KNEELFLASH
C1-7
SPAREC1-6
LIFT/KNEELC1-5
BEEPER
MULTIPLEX SYSTEM LADDER DIAGRAM, 19 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11609/03
DISABLE
A2-24
SWITCHFRONT BRAKE
DAY RUN
A1-17
DAY RUN
DAY RUN
A1-17
DAY RUN
A1-17
A1-17
FOOT BRAKE
A2-24
RETARDER SWITCH
A2-24
FOOT BRAKE
D1 #72
D3-19
A2-23
REAR RUN SW. BRAKE INTERLOCK
B3-6
D1-6
SPARE
RETARDER
D1-5
SERVICE BRAKE
D1-4
REQUESTDIA
TRANS BRAKED1-3
REQUEST
D1-1NEUTRAL TO
D1-2
RANGE INHIBIT
DAY RUN
A1-17
DIA REQUEST
A2-8
MULTIPLEX SYSTEM LADDER DIAGRAM, 20 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11709/03
BRAKE
D1-7
FAST IDLE
LATCH (FLAG)FIRE DETECTED
B1-F05
NEUTRAL
D1-17
SPEEDSW.
D2-20
PARK
ONSIG.
A2-7
INTERLOCK
D1-8
THROTTLE
D1-F08THROTTLEINTERLOCKFLAG
1/2 SEC.
PULSEON
INTERLOCK FLAG
B3-6
BRAKEINTERLOCK FLAG
THROTTLE
D1-F08
SW. IN REAR
A2-23
REAR RUN
A1-F06
IGN ALL FLAG
FASTIDLE
A2-9
FAST IDLED1-7
MULTIPLEX SYSTEM LADDER DIAGRAM, 21 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11809/03
A/C RUN
ALTERNATORENABLE
DISABLE
SPARED2-4
D2 #73
AC ENABLE
D2-F01
AC ENABLE
D2-F01
EM70 OVER DAY RUN
A2-23
A1-17
REAR RUN SW.
D4-22
ENGINE RUN
VOLTAGE
D2-F02
FIRE DETECTED LATCH
B1-F05
BATTERY SW.
A2-32 D2-3
HEAT HIGH
D2-2
A2-15
A2-16
HEAT LOW
D2-1HEAT
DISABLE
MULTIPLEX SYSTEM LADDER DIAGRAM, 22 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
11909/03
D2-6LOW FAN
HEATER/BOOSTER
D2-7
D2-6COOL
VENT
D2-F01AC ENABLE
D2-F02
LATCHEM70 OVERVOLT
FLAG LATCH (FLAG)
A2-23
REAR RUN SW.
DAY RUN
A1-17
DELAY ON
1 SEC
D2-F02
EM70 OVERVOLT LATCH
EM70OVERVOLT
D1-14
B1-F05
FIRE DETECTED
A1-F06
IGN ALL 5 SEC
DELAYON
D3-23
CHARGE
BOOSTER PUMPAC ENABLEPP 21
D2-F01
SWITCHPUMP
A2-26 D2-5
A2-12
AC ENABLE
D2-F01
PP 21
D2-F01
AC ENABLEPP 21
AC ENABLE
D2-F01
PP 21
VENT LOW
A2-14
VENT HIGH
A2-13
COOL
A2-14
VENT LOW
A2-15
HEAT LOW
DISABLE
DISABLE
DISABLE
AC B/P REQ
D4-18
MULTIPLEX SYSTEM LADDER DIAGRAM, 23 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
12009/03
0.5S OFF
FLASH0.5S ON
B1-F05
FIRE FLAG
B1-F05
FIRE FLAG
D3 #74
A1-F07
EXT. LT.
A1-F07
EXT. LT. TEST
A1-F07
EXT LT TEST
EXT LT TEST
A1-F07
FLAG
NIGHT RUN
FLAGEXT LT TEST
A1-F07
PARK/MARKER
A1-19
FLAG
A1-18
TEST
RIGHT TURNRIGHT TURN
0.3S OFF
FLASH0.3S ON
A1-22
SW.
HAZARD
0.7S OFF
FLASH0.7S ON
A1-20D3-3
D3-2
MARKER
0.5S OFF
FLASH0.5S ON
LEFT TURN
A1-22
HAZARD
SW.
A1-21
LEFT TURN
D3-1
STARTER ENGAGED
D3-18
STARTER ENGAGED
D3-18
MULTIPLEX SYSTEM LADDER DIAGRAM, 24 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
12109/03
LOW HYD. OIL PROBE LATCH
A1-17
DAY RUN
A1-17
DAY RUN
D3-F08
PROBE LATCHLOW HYDRAULIC OIL
D3-F08
A1-F07
EXT LT TESTFLAG
LOW HYDRAULIC
D1-24
FLUID
MARKERS
5 SEC.
DELAYON
FLUID PROBELOW HYDRAULICD3-8
POWER
PROBE LATCHLOW HYD. OILD3-F08
TEST TIMER
EXT. LT. TEST
B2-17
0.5 ON 0.6 OFF
(FLAG)TEST SW
EXT LT
EXT LT TEST
A1-F07
BRAKE INTERLOCK
FLAG
TRANS REVERSE
EXT LT TEST
A1-F07
FLAG
DISABLE
D1-10
A1-18
A1-19
NIGHT RUN
REAR BRAKE SW.
FRONT BRAKE SW.
DAY RUN
A1-17
PARK BRAKE
D2-24
B3-6
A2-24
A2-7
D1-20
RETARDER
1.1 SEC.CYCLE
D3-6REVERSE
TAIL LAMPS
LAMP
D3-7
SPARED3-5
A1-F07D3-4
STOP LIGHT
MULTIPLEX SYSTEM LADDER DIAGRAM, 25 OF 26
IO-72594R002A
LOW FLOORLOW FLOOR
12209/03
MULTIPLEX SYSTEM LADDER DIAGRAM, 26 OF 26
IO-72594R002A
STARTER
D2-21
DISABLE
B3-3
INTERIOR LAMPCURBSIDE
NEUTRAL SIGNAL
DISABLE
B3-2
D2-20 D4-17
D4-7SPARE
D4-8PASS HEATER
CURBSIDE
D4-6INTERIOR LAMP
INTERIOR LAMP
SOLENOIDSTARTD4-1
D4-3
D4-2POWER PLUS(N/A)
START TEMP
D1-12
ENG RUN
D4-22
WEBASTO REQUEST
B2-20WEBASTO RUND4-4
D2-21
FLOOR HTRENABLE
WATER VALVED4-5
STREETSIDEINTERIOR LAMPSTREETSIDE
D2 #76
D4-1STARTER DISABLED4-F01
FLAG
DELAY OFF20 SEC
STARTER SOLENOID
STARTERDISABLE
D4-F01
FLAGREQUEST
D4-1
SOLENOIDSTARTER
FLOOR HEATERENABLE
DISABLE
(N/A)
DISABLE
(N/A)
DISABLE
(N/A)
LOW FLOORLOW FLOOR
123
13-38759R020A .....................................4713-38761R012A .....................................3113-38768R003A .....................................4413-38772R012A .....................................3213-38779R004A .....................................4813-38783R036A .....................................4113-38786R003E ......................................5613-39159R010B......................................5413-39160R006A .....................................6213-39939R011B......................................6513-39942R009A .....................................4513-39943R013B......................................2813-39945R004B......................................6613-39950R000E ......................................3513-40156R012B......................................7113-40400R004C......................................9213-40503R010A .....................................9013-40529R003A .....................................2713-40613R009A .....................................7913-40689R015A .....................................3713-42454R004B......................................6713-42460R004A .....................................8413-43896-000C .......................................4013-44015R004B......................................2913-45115R016A .....................................2413-46248R004A .....................................5713-46296R005A .....................................4613-46348R018A .....................................5213-46372R004A .....................................9513-46434R004A .....................................9113-46468R006B......................................8513-46502R006A .....................................5513-48209R010A .....................................2513-48224R006B......................................39
13-48232R003A .....................................4313-48239R011B......................................2613-48241R002B......................................6313-48243R002A .....................................8113-48246R001B......................................3313-48250R004A .....................................6013-48260R000C......................................8213-48264R003A .....................................8613-48272R000B......................................3013-48273R006B......................................3413-48274R000C......................................8313-48277R002A .....................................8913-48278R000A .....................................5313-48280R004A .....................................7013-48281R003A .....................................7613-48295R007A .....................................6113-48316R005A .....................................7213-48322R037A .....................................7813-48422R001A .....................................8813-48839R001A .....................................5913-48854R000B......................................8013-50105R008A .....................................3813-50198R005A .....................................6813-51618R003A .....................................6413-52228R001D .....................................421E06078A, Sht 2 FW..............................501E06079A, Sht 2 FW..............................51391-0105C ..............................................73392-0016B ..............................................74393-0166B ..............................................75IO-72594R001A .....................................96IO-72594R002A .....................................97IO-90818R003A .....................................94
Index (by Drawing Number)
LOW FLOORLOW FLOOR
124
Index (by Description)AABS ........................................................34Air Cooler Temperature Sensor ..............47Alarm, Back-Up......................................62Alarm, Fire..............................................43Alarm, Passenger Ramp .........................76Alternator .........................................39, 41Alternator Noise Suppression .................40Amplifier, PA System .............................90Anti-Lock Brakes ...................................34Auxiliary Defroster Fan ..........................55Auxiliary Heater, Proheat .......................57
BBack-Up Alarm .......................................62Ballast, Flourescent Lamp ......................65Battery Disconnect Switch .....................29Battery Equalizer ....................................41Battery Fuse Panel ..................................42Battery Fuses ..........................................30Beeper, Kneeling ....................................45Beeper, Low Air......................................83Bell, Fire Alarm ......................................43Booster Fan, Driver ................................56Booster Pump, Heater .............................54Brake ECU..............................................31Brake Interlock .......................................71Brake Lamps ...........................................63Button, Horn ...........................................44
CCable, Power ...........................................41CAC Temperature Sensor .......................47Caution, Definition ...................................8
Charging System.....................................39Check Engine Lamp ...............................85Chime, Stop Requested...........................72Circuit Breakers ........................37, 38, 86Clearance Lamps ....................................60Communication Ring ..............................94Connector Listing ...................................13Control, Door ..........................................70Control, Fan Drive ..................................47Control, Windshield Wipers ...................48Controller, Proheat ..................................57Coolant Temperature Gauge ............33, 81Coolant Temperature Sender ..................81Coolant Temperature Sensor...................47Cranking Motor ......................................26Crime Alarm ...........................................92Crime Alarm Switch ........................46, 92Cycle Counter, Passenger Ramp.............76
DDash Panel Lamps ..................................68Dash Switches.........................................78Defroster Fan ..........................................55Destination Sign Power ..........................46Diagram, Communication Ring ..............94Dimmer, Stop Requested Lamp ..............72Dimmer Switch, Headlight .....................64Diodes ..............................................25, 47Door Control ...........................................70Driver’s Booster Fan...............................56Driver’s Defroster ...................................53Driver’s Heater .......................................53Dual Air Gauge .......................................81
LOW FLOORLOW FLOOR
125
EECM, Engine 24, 25, 26, 28, 31, 71, 85ECU, Brakes ....................................31, 34ECU, Transmission ..................26, 31, 32,..................................................34, 38, 62Electrical System Monitor ...............38, 91Engine Control System ...........................24Engine Power ..........................................25Equalizer, Battery ...................................41Exterior Lamp Test .................................59Exterior Lighting .59, 60, 61, 62, 63, 64Exterior Speakers ....................................90Extinguishable Ballast ............................65
FFan, Booster ............................................56Fan Controller .........................................43Fan, Dash Mounted.................................55Fan, Defroster .........................................55Fan Drive ................................................47Fare Box Power ......................................80Fast Idle ..................................................28FDCA Unit ..............................................47Filter, Electronic Noise ...........................81Fire Alarm Bell .......................................43Fire Detection Wire ................................43Fire Relay ...............................................47Flourescent Lamp ...................................65Front Gauges...........................................81Fuel Level Gauge....................................81Fuel Lever Sender ...................................81Fuse, Battery ...........................................30Fuse, System Monitor .............................91Fuses24, 25, 26, 31, 39, 41, 42, 79, 91
GGauges ....................................................81
HHarness Connections ..............................13Harness Listing .......................................20Hazard Switch.........................................61Head Lamps ............................................64Heated Mirrors ........................................88Heater, Auxiliary.....................................57Heater Booster Pump ..............................54Heater, Destination Sign Glazing ...........88Heater/Defroster, Driver's .......................53Heater/Defroster Switch .........................54Horn ........................................................44Hour Meter Gauge ..................................33HVAC Interface ......................................52HVAC Ladder Diagram ..........................50HVAC Schematic ....................................51Hydraulic Oil Level Sensor ....................35
IIdle Validation Switch.............................24Ignition Switch ..................25, 60, 64, 79Indicator Lamps ......................................82Input, Multiplex System .........................96Interconnect, Passenger Ramp................75Interface, HVAC .....................................52Interface, Passenger Ramp ..............74, 76Interface, Transmission ...........................31Interior Lighting .......................65, 66, 67Interior Speakers .....................................90Interlock, Brake/Throttle ........................71Interlock Override Switch ......................71
LOW FLOORLOW FLOOR
126
JJump Start Connectors ............................41
KKneeling System .....................................45
LLadder Diagram, HVAC .........................50Ladder Diagram, Multiplex System .......97Ladder Diagram, Passenger Heating ......50Lamp, Brake ...........................................63Lamp, Check Engine ..............................85Lamp, Dash Panel ...................................68Lamp, Entrance Door .............................70Lamp, Exit Door .....................................70Lamp, Flourescent ..................................65Lamp, Headlight .....................................64Lamp, Indicator ......................................82Lamp, Kneeling ......................................45Lamp, Low Hydraulic Fluid ...................84Lamp, Ramp Activation ..........................76Lamp, Stop Engine .................................85Lamp Test Switch ...................................61Lamp, Turn Signal ..................................61Lamp, Warning .......................................82Layout, Multiplex Modules ....................94License Plate Lamp ................................60Lighting, Exterior 59, 60, 61, 62, 63, 64Lighting, Interior ......................65, 66, 67Lighting, Rear Step .................................66Location Multiplex Modules ..................94Low Air Beeper ......................................83Low Air Switch .......................................83Low Coolant Probe .................................24Low Hydraulic Fluid Warning ................84
MMagnetic Starter Switch .........................26Map Light ...............................................67Marker Lamps.........................................60Mirrors, Exterior .....................................89Module, Retarder Resistance ..................32Monitor, Electrical System ..............38, 91Motor, Booster Fan .................................56Motor, Cranking .....................................26Motor, Windshield Wiper .......................48Multiplex Component Layout ................94Multiplex System Inputs .........................96Multiplex System Ladder Diagrams .......97Multiplex System Modules .......38, 86, 95Multiplex System Outputs ......................96
NNight Run Switch ...................................64Noise Suppression, Alternator ................40Notice, Definition .....................................8
OOil Pressure Gauge ..........................33, 81Oil Pressure Sender ................................81Output, Multiplex System.......................96Overhead Electrical Panel ......................86
PPA System ...............................................90Panel, Battery Fuse .................................42Panel Lamp Dimmer Switch...................68Panel, Overhead Electrical .....................86Panel, Rear Electrical .............................38Parking Brake Switch .............................83Passenger Ramp......................................73
LOW FLOORLOW FLOOR
127
Passenger Ramp Interconnect .................75Passenger Ramp Interface ...............74, 76PLC Power ..............................................95Power Cables ..........................................41Power, Destination Sign .........................46Power, Fare Box .....................................80Power, Two Way Radio ..........................79Probe, Hydraulic Fluid ...........................84Probe, Low Coolant ................................24Proheat Auxiliary Heater ........................57Public Address System ...........................90Pull Cord, Stop Requested ......................72Pump, Booster ........................................54Pump, Windshield Washer ......................48
RRadio Power ...........................................79Ramp, Passenger .....................................73Rear Electrical Panel ..............................38Rear Gauges ............................................33Rear Start Switch ....................................26Rear Step Lighting ..................................66Regulator, Voltage............................39, 42Relay, Fire ...............................................47Relay, Heated Mirror ..............................88Relay, Passenger Ramp...........................76Relay, Speakers .......................................90Relays ...............................25, 34, 38, 39,....................................41, 42, 43, 79, 86Remote Controlled Mirrors ....................89Reservoir, Windshield Washer ................48Retarder Resistance Module ...................32
Retarder, Transmission ...........................32Reverse Lamps .......................................62Rotary Ignition Switch............................26
SSchematic, HVAC ...................................51Schematic, Passenger Heating ................51Senders......................................33, 35, 81Sensor, ABS System ...............................34Sensor, Proximity ...................................70Sensor, Retarder Temperature .................32Sensor, Throttle Position.........................24Sensors ....................................................47Sign, Stop Requested ..............................72Solenoid, Air Intake Heater ....................24Solenoid, Door Control...........................70Solenoid, Interlock..................................71Solenoid, Starter .....................................26Solenoid Valve, ATC...............................34Solenoids ..................................32, 45, 70Speedometer ...........................................81Starting System .......................................26Stop Engine Lamp ..................................85Stop Lamps ......................................60, 63Stop Requested System ..........................72Switch, ABS Diagnostic .........................34Switch, Battery Disconnect ....................29Switch, Booster Fan .........................56, 78Switch, Brake Lamp ...............................63Switch, Chime .................................72, 78Switch, Coolant Heater ...........................78Switch, Crime Alarm .......................46, 92Switch, Dash ...........................................78Switch, Driver Fan ..................................78
LOW FLOORLOW FLOOR
128
Switch, Engine Test ................................78Switch, Fast Idle ..............................28, 78Switch, Hazard Light ..............................78Switch, Headlight Dimmer .....................64Switch, Heated Mirror ............................78Switch, Heater/Defroster ........................54Switch, Ignition ........................24, 60, 78Switch, Interior Lamp ......................65, 78Switch, Interlock Override .....................71Switch, Kneeling ....................................78Switch, Low Air ......................................83Switch, Map Light ..................................67Switch, PA System ..................................90Switch, Panel Lamp Dimmer....68, 78, 81Switch, Parking Brake ............................83Switch, Pressure......................................32Switch, Proheat .......................................78Switch, Proheat Control ..........................57Switch, Sensitive Edge ...........................70Switch, Shut-Down Override .................78Switch, Speakers ..............................78, 90Switch, Starter .................................26, 78Switches .....................25, 26, 31, 35, 45,.............................61, 70, 78, 79, 86, 95
TTail Lamps ..............................................60Tape, Passenger Signal ...........................72Throttle, Engine ......................................27Throttle Interlock ....................................71Throttle Position Sensor .........................24Touch Bar, Door Control ........................70Touch Tape, Door Control ......................70Touchtape, Stop Requested.....................72
Transmission ECU26, 31, 32, 34, 38, 62Transmission Interface............................31Transmission Retarder ............................32Troubleshooting ........................................9Turn Signals ............................................61Two Way Radio Power ...........................79
VValve, ATC Solenoid...............................34Valve, Brake Modulator ..........................34Vanner, Model EM70.......................38, 91Voltage Regulator ............................39, 42Voltmeter.................................................81
WWarning, Definition ..................................8Warning Lamp, Low Hydraulic Fluid ....84Warning Lamp, Passenger Ramp............76Warning Lamps .......................................82Welding Precautions ...............................12Wheelchair Ramp ...................................73Windshield Wipers..................................48Wire Color Identification ..........................9Wire, Fire Detection ...............................43Wiring Harness Connections ..................13Wiring Harness Listing ...........................20