Indygo
Chassis 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
2
HOW TO CONTACT THE GILLIG CORPORATION
Additional copies of this or any other Gillig publication may be purchased by contacting the Gillig Parts
Department. We hope you find this manual user-friendly and we welcome your comments, questions, or
suggestions regarding this manual or your Phantom coach. You may contact the Gillig Corporation by
phone, 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)
Table of Contents
Introduction ... 7
Electrical Connector Listing... 13
Harness Listing ... 20
Chapter 1-Powertrain ... 23
Engine Control System... 24
Engine Power... 25
Starting System ... 26
Throttle Control ... 27
Fast Idle ... 28
Battery Disconnect Switch ... 29
Battery Fuses ... 30
Transmission Interface ... 31
Transmission Retarder... 32
Rear Gauges... 33
Anti-Lock Brakes ... 34
Senders and Switches ... 35
Chapter 2- Vehicle Systems... 36
Circuit Breakers ... 37
Rear Electrical Panel ... 38
Charging System... 39
Alternator Noise Suppression ... 40
Power Cables... 41
4
Fire Alarm ... 43
Horn ... 44
Kneeling System ... 45
Destination Sign Power... 46
Fan Drive... 47
Windshield Wipers ... 48
Chapter 3- H V A C ... 49
HVAC Ladder Diagram ... 50
HVAC Schematic ... 51
HVAC Interface ... 52
Driver’s Heater/Defroster ... 53
Heater Booster Pump ... 54
Auxiliary Defroster Fan ... 55
Driver’s Booster Fan ... 56
Proheat Auxiliary Heater ... 57
Chapter 4- Lighting ... 58
Exterior Lamp Test... 59
Tail & Marker Lamps ... 60
Turn Signals ... 61
Reverse Lamps ... 62
Brake Lamps ... 63
Head Lamps ... 64
Interior Lighting... 65
Rear Step Lighting ... 66
Map Light ... 67
Chapter 5- Doors ... 69
Door Control ... 70
Brake/Throttle Interlock... 71
Stop Requested System ... 72
Passenger Ramp... 73
Passenger Ramp Interface ... 74
Passenger Ramp Interconnect... 75
Passenger Ramp Interface ... 76
Chapter 6 - Dash ... 77
Dash Switches ... 78
Two Way Radio Power ... 79
Fare Box Power ... 80
Front Gauges ... 81
Indicator Lamps... 82
Low Air & Parking Brake Switches ... 83
Low Hydraulic Fluid Warning ... 84
Check/Stop Engine Lamp ... 85
Overhead Electrical Panel... 86
Chapter 7- Miscellaneous ... 87
Heated Mirrors ... 88
Remote Controlled Mirrors... 89
PA System ... 90
Electrical System Monitor ... 91
6
Chapter 8- Multiplex System... 93
Communication Ring Diagram ... 94
PLC Power ... 95
Multiplex System Inputs & Outputs ... 96
Multiplex System Ladder Diagram... 97
Index (by Drawing Number) ... 123
This manual contains electrical schematics and other electrical system information for the Gillig Low
Floor Transit Bus. The information pertains to standard installed equipment, optional equipment, and
special features. All information and data in this manual are based on the latest product information
available at the time of publication. The Gillig Corporation reserves the right to make product changes
at any time.
Service Bulletins and manual revisions may be published to supplement, supersede, or augment the
information in this manual. The bulletins should be placed in the appropriate places in the manual for
future reference.
IMPORTANT SAFETY INFORMATION
It is your responsibility to be completely familiar with the WARNINGS, CAUTIONS, and NOTICES
described in this Electrical Schematics Manual. These highlighted messages advise against the use of
specific service methods or procedures which can result in personal injury, damage to the equipment, or
unsafe operating conditions. It is important to understand that these messages are not exhaustive. Gillig
Corporation could not possibly know and evaluate all conceivable methods in which service might be
done, 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 procedure
or tool which is not recommended by Gillig Corporation must first be thoroughly satisfied that neither
personal 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 special
print. It is critical to the safety of service personnel and the coach that these warnings are diligently
observed, especially while undertaking any of the procedures presented in this manual. WARNINGS,
CAUTIONS, and NOTICES appear as follows:
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 for
proper operation, maintenance, or repair.
VEHICLE IDENTIFICATION NUMBER (VIN)
The Vehicle Identification Number (VIN) and other information about the coach is found on the
Manufacturer’s ID plate which is located on the door of the main electrical panel above and to the left of
the driver. The VIN serves as a legal identification number and appears on the vehicle certificate of title
and registration papers. You may be asked to provide the VIN to Gillig Service or Parts personnel in
order 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 is
customized for your specific coaches, using the “As-Built” Bills of Material and associated Electrical
Schematics.
Code
Color
Code
Color
Code
Color
BLK
Black
GRN
Green
PPL
Purple
BLU
Blue
LT
Light
RED
Red
BRN
Brown
ORG
Orange
TAN
Tan
DK
Dark
PNK
Pink
WHT
White
GRY
Gray
YEL
Yellow
The electrical schematics and wiring diagrams in this manual are arranged in chapters covering the type
of 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 to
correlate drawing numbers with page numbers, so that you can find a drawing if you only know the
engineering drawing number. Page numbers are consecutive thru the manual. Heavy tabbed divider
pages separate the chapters to assist your search.
Information in this manual is only for the Gillig Low Floor coaches designated on the front cover
and again at the top of the Table of Contents page. Do not use this manual as a basis for trouble
shooting 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 the
voltmeter 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: the
negative lead, which is connected to the ground side of the circuit; and the positive lead, which should
be connected to the hot side of the circuit.
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 energized
circuit may cause meter damage or result in inaccurate resistance
measurement.
Jumper Wire. A jumper wire may be used in trouble shooting procedures to bypass certain circuit
components or circuit segments where an open is suspected. A jumper is a length of wire with clips or
terminals used to connect two points of a circuit.
WARNING
Do not use a jumper wire to bypass high resistance loads, as this would
short to ground and may cause damage to the circuit and/or injury to
maintenance personnel.
TROUBLE SHOOTING PROCEDURES
Trouble shooting is a systematic approach to solving problems. Because of the many components and
connections in an electrical circuit, it is necessary to follow a step-by-step procedure for an accurate
diagnosis of any electrical problem.
First, verify the problem or complaint by operating the circuit in which the problem is suspected. Once
the problem is identified and verified, then refer to the Service Manual and the Electrical Schematics
manual 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 identify
the problem.
Finally, when the problem is isolated and a particular element of the circuit is determined to be the cause
of the problem, make the necessary replacement or repair. Then operate the circuit to verify the repair.
SHORT CIRCUITS
Many electrical system problems are caused by short circuits. A short circuit is either a feed circuit
which has been completed to ground before it reaches the intended operating unit or a ground circuit that
is grounded prematurely.
To diagnose a short to ground use a VOM to test for continuity to ground. First, disconnect the circuit
from 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 time
until continuity is lost. The short is in the last element opened or in the segment of the circuit beyond
the 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 the
short. First, turn off all elements of the circuit receiving power through the circuit breaker or fuse and
disconnect all loads. Turn on power to the fuse, then connect one lead of the VOM to the power supply
side 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 not
indicate voltage, the short is in the disconnected equipment. If the VOM indicates voltage, the short is
in the wiring. To pinpoint the short, disconnect circuit elements one at a time until the VOM does not
indicate voltage. The short will be in the segment connecting the last element.
OPEN CIRCUITS
Many electrical system failures are caused by an open circuit. An open circuit is one in which power
flow 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 faulty
component, 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 the
segment 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 a
VOM. If the VOM indicates power at one point in the circuit, then is moved along to another point of
the 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 disconnect
the component from the circuit. Then connect the leads of the VOM to the component. If there is no
continuity, an open exists in the component.
12
WELDING PRECAUTIONS
Prior 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 voltage
equalizer, multiplexer, or any of the electronic control units (ECU’s) may result. When the welding
operation is completed, the components must be reconnected in the reverse order of disconnection.
CAUTION
Ensure the following precautions are accomplished prior to welding
anywhere or anything on the coach, as permanent damage to electronic
components 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, communicommuni-cation 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 drivers
console).
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.
1
Varies
Engine to Engine ECM
Engine and Settee Area
1D
Deutsch 31
Engine to Engine ECM (Cummins)
Engine and Settee Area
3
WP 2-way
Engine to Underseat Heaters
Engine and Settee Area
4
WP 3-way
Engine to Curbside Heater
Front Chassis
5
WP 3-way
Engine to Roadside Heater
Front Chassis
7
AMP 4-way
Engine to Coolant Level Probe
Engine and Settee Area
8
WP 22-way
Engine to Rear Elect Panel
Engine and Settee Area
8A
WP 22-way
Engine to Rear Elect Panel
Engine and Settee Area
8B
WP 6-way
Engine Spares
Engine and Settee Area
8C
WP 4-way
Engine to Reverse Lights
Engine and Settee Area
9
Amp 2-way
Exit Door Panel to Door Lights
RH Roof Duct
10
WP 22-way
Engine to Rear Run Box
Rear Run Box Area
11
DDC 2-way
Engine to Inlet Air Temp
Engine and Settee Area
12
DDC 4-way
Engine to Ambient Air Temp
Engine and Settee Area
14
Deutsch 31-way
Engine to Ceiling Harness
Engine and Settee Area
14A
Deutsch 31-way
RH Ceiling to Ceiling Extension
RH Roof Duct
14B
Deutsch 31-way
RH Ceiling Extension to Engine
Engine and Settee Area
15
WP 2-way
Engine to Coolant Probe (Cummins)
Engine and Settee Area
16
WP 2-way
Engine to Boost Pump
Engine and Settee Area
17
Amp 2-way
Engine to Air Dryer
Engine and Settee Area
17A
WP 2-way
Engine Spares
Engine and Settee Area
18
WP 3-way
Engine to Hyd Level Probe
Engine and Settee Area
19
WP 3-way
Engine to Rear Gauges
Rear Run Box Area
20
WP 2-way
Engine to Fan Solenoid (Cummins)
Engine and Settee Area
20
Amp 8-way
Engine to Fan Control
Engine and Settee Area
20A
Amp 2-way
Engine to Water Temp Probe
Engine and Settee Area
21
WP 2-way
Engine to Fire Solenoid (Cummins)
Engine and Settee Area
21
Relay Socket 4-way
Engine to Fire Solenoid
Engine and Settee Area
31
WP 2-way
Engine Spares
Engine and Settee Area
31
WP 3-way
Console to Left Headlight
Headlight Channel
32
WP 3-way
Console to Right Headlight
Headlight Channel
35
WP 3-way
Console to Foot Dimmer Switch
Dash Area
36
WP 2-way
Console to Right Turn Foot Switch
Dash Area
37
WP 2-way
Console to Left Turn Foot Switch
Dash Area
38
Amp 9-way
Dash to Console
Console Area
39
WP 3-way
Console to Left Turn Light
Headlight Channel
40
WP 3-way
Console to Left Turn Light
Headlight Channel
49
Amp 9-way
Dash to Console
Console Area
52
Deutsch 6-way
Rear Run Box
Rear Run Box Area
56
WP 6-way
Bulkhead Electrical Panel to Trans ECU
Rear Bulkhead Electric Panel
63
Amp 4-way
Bulkhead Electrical Panel to ABS Relay
Rear Bulkhead Electric Panel
67
WP 6-way
Bulkhead Electrical Panel to Trans ECU
Rear Bulkhead Electric Panel
71
Relay Socket
Bulkhead Electrical Panel to Battery High Relay
Rear Bulkhead Electric Panel
71A
Relay Socket
Bulkhead Electrical Panel to Battery Balance Relay
Rear Bulkhead Electric Panel
71B
Relay Socket
Bulkhead Electrical Panel to Battery Low Relay
Rear Bulkhead Electric Panel
75
Amp 4-way
Bulkhead Electrical Panel to ABS Relay
Rear Bulkhead Electric Panel
82
Relay Socket
Bulkhead Electrical Panel to Engine Ignition Relay
Rear Bulkhead Electric Panel
Conn. #
Conn. Type
Harness Description
Location
14
83
Relay Socket
Bulkhead Electrical Panel to Trans Ignition Relay
Rear Bulkhead Electric Panel
84
Relay Socket
Bulkhead Electrical Panel to Hyd Probe Relay
Rear Bulkhead Electric Panel
84A
Relay Socket
Bulkhead Electrical Panel to Low Hyd Oil Relay
Rear Bulkhead Electric Panel
86
WP 6-way
Engine to Rear Lights
Engine and Settee Area
86A
WP 2-way
Engine to Decel Lights
Engine and Settee Area
87
WP 6-way
Bulkhead Extension to A/C
Engine and Settee Area
88
Relay Socket
Bulkhead Electrical Panel to Alternator Disable Relay
Rear Bulkhead Electric Panel
90
Relay Socket
Bulkhead Electrical Panel to Starter Disable Relay
Rear Bulkhead Electric Panel
93
Amp 12-way
Dash to Left Dash Panel
Dash Area
94
Amp 9-way
Dash to Center Dash Panel
Dash Area
95
Amp 15-way
Dash to Right Dash Panel
Dash Area
96
Amp 12-way
Dash to Ignition Switch Panel
Console Area
96D
Amp 6-way
Dash to Ignition Switch Panel
Console Area
97
Amp 4-way
Dash to Heated Mirror Switch
Console Area
98
Amp 3-way
Dash to Door Control Switch
Console Area
99
WP 3-way
Dash to Parking Brake
Console Area
100
Deutsch 6-way
Dash to Front Diagnostics
Dash Area
101
Amp 15-way
RH Ceiling to Dash
Main Electric Panel
102
Amp 15-way
Main Electrical Panel to Dash
Main Electric Panel
103
Amp Mini Relay Socket Dash to Heated Mirror Relay
Console Area
112
Amp 3-way
Dash to Driver Seat
Console Area
114
Relay Socket
Dash to Ramp Power Relay
Console Area
115
Relay Socket
Dash to PLC Power Relay
Console Area
117
Amp 15-way
Main Electrical Panel to RH Ceiling
Main Electric Panel
117
WP 3-way
Dash to Door Alarm
Entrance Door Header
117A
WP 3-way
Front Door to Door Alarm
Entrance Door Header
117B
WP 3-way
Door Alarm to Front Door
Entrance Door Header
118
Amp 2-way
Dash to Map Light Switch
Console Area
119
Amp 15-way
Main Electrical Panel to RH Ceiling
Main Electric Panel
120
Relay Socket
Electrical Panel to Engine Stop Light Relay
Main Electric Panel
121
Relay Socket
Electrical Panel to Engine Check Light Relay
Main Electric Panel
122
Relay Socket
Electrical Panel to Fire Alarm Relay
Main Electric Panel
127
Amp 9-way
Electrical Panel to Light Bar
Main Electric Panel
128
WP 3-way
RH Ceiling to Throttle Pedal
Dash Area
128
WP 2-way
Dash to Throttle Pedal
Dash Area
129
WP 3-way
RH Ceiling to Throttle Pedal
Dash Area
130
WP 2-way
RH Ceiling to LH Side Marker Light
Front Cap
131
WP 2-way
Front Cap to Right Marker Light
Front Cap
132
Amp 6-way
RH Ceiling to Destination Sign
Front Cap
133
WP 2-way
Front Cap to Right Center Marker Light
Front Cap
134
WP 2-way
Front Cap to Center Marker Light
Front Cap
135
WP 2-way
Front Cap to Left Center Marker Light
Front Cap
136
WP 2-way
Front Cap to Left Marker Light
Front Cap
137
WP 2-way
Front Cap to Left Side Marker Light
Front Cap
138
Amp 2-way
Main Electrical Panel to RH Front Stop Request
RH Roof Duct
139
Amp 6-way
Front Door to Exit Door
Entrance Door Header
140A
WP 2-way
Main Electrical Panel to Ext Speaker
Front Chassis
141A
WP 1-way
Main Electrical Panel to Ent Door Ground Light
Entrance Door Header
141C
WP 1-way
Main Electrical Panel to Ent Door Ground Light
Entrance Door Header
141D
WP 1-way
Main Electrical Panel to Ent Door Ground Light
Entrance Door Header
141E
WP 1-way
Main Electrical Panel to Ent Door Ground Light
Entrance Door Header
142A
WP 1-way
Main Electrical Panel to RH Side Turn Light
Entrance Door Header
142B
WP 1-way
Main Electrical Panel to RH Side Turn Light
Entrance Door Header
143
Amp 2-way
Main Electrical Panel to Kneel Solenoid
Front Chassis
144
Amp 3-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
145
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
145A
Amp 3-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
146
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
147
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
148
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
149
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
151
Amp 6-way
RH Ceiling to Speakers
LH Roof Duct
152
Amp 12-way
Main Electrical Panel to Rear Door
Exit Door Header
153
Amp 2-way
Main Electrical Panel to Raise Solenoid
Front Chassis
154
Amp 3-way
Main Electrical Panel to Hold Solenoid
Front Chassis
156
Amp 2-way
Main Electrical Panel to RH Stop Request
RH Roof Duct
157
Packard 2-way
RH Ceiling to Power Relay
Console Area
158A
WP 1-way
Main Electrical Panel to Ramp Light
Console Area
158C
WP 1-way
Main Electrical Panel to Ramp Light
Console Area
159
Amp 3-way
RH Ceiling to Diagnostic Switch
Console Area
160
Amp 4-way
Dash to Console
Console Area
161
Packard 2-way
Dash to Headlight Relay
Console Area
162
WP 2-way
Dash to Driver Seat
Console Area
164
Amp 4-way
Dash to Engine Test Switch
Dash Area
165
Amp 4-way
Dash to Ramp Counter
Front Chassis
166
Amp 4-way
Dash to Two-Way radio
Radio Box
167
Amp 15-way
Main Electrical Panel to LH Ceiling
LH Roof Duct
169
Amp 3-way
LH Ceiling to Light Ballast
LH Roof Duct
171
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
171A
Amp 3-way
LH Ceiling to Light Ballast
LH Roof Duct
172
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
173
Amp 3-way
LH Ceiling to Noise Sensor
LH Roof Duct
174
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
175
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
176
Amp 3-way
LH Ceiling to Noise Sensor
LH Roof Duct
177
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
180
Amp 4-way
Dash to Driver Heater
Dash Area
181
Amp 12-way
Dash to Driver Heater
Dash Area
182
Deutsch 6-way
Dash to Left Wiper Bulkhead
Dash Area
182B
Amp 6-way
Wiper Bulkhead to Wiper Motor
Dash Area
183
Deutsch 6-way
Dash to Right Wiper Bulkhead
Dash Area
183B
Amp 6-way
Wiper Bulkhead to Wiper Motor
Dash Area
184
Packard 4-way
Dash to Wipers
Dash Area
185
Packard 6-way
Dash to Wipers
Dash Area
186
Deutsch 12-way
Engine to Trans Interface
Engine and Settee Area
189
Relay Socket
Engine to Flag Panel
Engine and Settee Area
190
Relay Socket
Engine to Flag Panel
Engine and Settee Area
191
WP 3-way
Bulkhead Extension to Flag Panel
Engine and Settee Area
192
WP 2-way
Console to Battery Disconnect Switch
Battery Area
193
WP 2-way
Bulkhead Extension to Flag Panel
Engine and Settee Area
16
193
WP 3-way
Console to Brake Pressure Switches
Front Chassis
194
WP 3-way
Console to Brake Pressure Switches
Front Chassis
195
WP 1-way
Console to Brake Pressure Switches
Front Chassis
196
WP 1-way
Console to Brake Pressure Switches
Front Chassis
197
WP 1-way
Console to Brake Pressure Switches
Front Chassis
198
WP 1-way
Console to Brake Pressure Switches
Front Chassis
199
Amp 2-way
Console to Horn
Headlight Channel
200
Amp 2-way
Engine to Air Temp Probe
Engine and Settee Area
201
Amp 2-way
Bulkhead Extension to Bulkhead Electrical Panel
Rear Bulkhead Electric Panel
203
WP 3-way
Engine to Trans Power (Cummins)
Engine and Settee Area
203
Relay Socket
Engine to Engine Power Relay
Engine and Settee Area
204
WP 2-way
Engine to Auxiliary Heater
Engine and Settee Area
207
WP 6-way
Engine to Fuel Gauge
Engine and Settee Area
207A
WP 6-way
Engine to Stop/Tail lights
Engine and Settee Area
208
WP 3-way
Bulkhead Electrical Panel to Trans ECU
Rear Bulkhead Electric Panel
208A
WP 3-way
Bulkhead Electrical Panel to Trans ECU
Rear Bulkhead Electric Panel
209A
WP 2-way
Engine to Battery Switch
Engine and Settee Area
210
WP 2-way
Engine to Trans Power
Engine and Settee Area
211
Amp 2-way
Engine to Starter
Engine and Settee Area
211
WP 2-way
Engine to Decel lights
Engine and Settee Area
212
WP 6-way
Engine to Rear Cap Lights
Engine and Settee Area
215
Packard 2-way
Electrical Panel to Ignition Relay 1
Main Electrical Panel
215
WP 2-way
Engine to Tail Light
Rear Cap
216
Packard 2-way
Electrical Panel to Ignition Relay 2
Main Electrical Panel
216
WP 2-way
Engine to Right Reverse Light
Rear Cap
217
Packard 2-way
Electrical Panel to Ignition Relay 3
Main Electrical Panel
217
WP 3-way
Engine to Right Stop Light
Rear Cap
218
WP 2-way
Engine to Rear Right Turn
Rear Cap
221
WP 2-way
Engine to Rear Left Turn
Rear Cap
222
WP 3-way
Engine to Left Stop Light
Rear Cap
223
WP 2-way
Engine to Left Reverse Light
Rear Cap
224
WP 2-way
Rear Cap to Right Marker Light
Rear Cap
225
WP 2-way
Rear Cap to Right Marker Light
Rear Cap
226
WP 3-way
Rear Cap to Upper Right Stop Light
Rear Cap
227
WP 2-way
Rear Cap to Center Marker Lights
Rear Cap
228
WP 2-way
Rear Cap to Center Marker Lights
Rear Cap
229
WP 2-way
Rear Cap to Center Marker Lights
Rear Cap
230
WP 2-way
Rear Cap to Left Marker Light
Rear Cap
231
WP 2-way
Rear Cap to Left Marker Light
Rear Cap
232
WP 3-way
Rear Cap to Upper Left Stop Light
Rear Cap
234A
WP 1-way
Engine to Rear Right Turn
Rear Cap
234B
WP 1-way
Engine to Rear Right Turn
Rear Cap
235A
WP 1-way
Engine to Rear Right Turn
Rear Cap
235B
WP 1-way
Engine to Rear Right Turn
Rear Cap
238A
WP 1-way
Engine to Rear Left Turn
Rear Cap
238B
WP 1-way
Engine to Rear Left Turn
Rear Cap
239A
WP 1-way
Engine to Rear Left Turn
Rear Cap
239B
WP 1-way
Engine to Rear Left Turn
Rear Cap
245
WP 4-way
Engine to Fuel Tank Level Sensor
Center Chassis
246
WP 1-way
Engine to Rear Step Light
Rear Chassis
246G
WP 1-way
Engine to Rear Step Light
Rear Chassis
249
WP 2-way
Chassis to RH Center Marker Light
Center Chassis
250
Diode Block
Bulkhead Electrical Panel to Relay Panel
Rear Bulkhead Electric Panel
250
WP 2-way
Chassis to LH Center Marker Light
Center Chassis
250A
Diode Block
Bulkhead Electrical Panel to Relay Panel
Rear Bulkhead Electric Panel
254
WP 2-way
Main Electrical Panel to RH Side Marker
Front Cap
255
Amp 2-way
RH Ceiling to Front Cap Marker Lights
Front Cap
256
Amp 2-way
Main Electrical Panel to RH Ceiling Ballast
RH Roof Duct
257
VDO 3-way
Rear Run Box Temp Gauge
Rear Run Box Area
257
Amp 2-way
LH Ceiling to Light Ballast
LH Roof Duct
258
VDO 3-way
Rear Run Box Oil Pressure Gauge
Rear Run Box Area
259
VDO 3-way
Center Dash Panel to Fuel Gauge
Dash Area
260
Amp 2-way
RH Ceiling to Drivers Fan
Dash Area
260
VDO 3-way
Center Dash Panel to Oil Pressure Gauge
Dash Area
261
VDO 3-way
Center Dash Panel to Water Temp Gauge
Dash Area
262
6-way
Center Dash Panel to Speedometer
Dash Area
266
Amp 6-way
Electrical Panel to Relay Module 1
Main Electrical Panel
267
Amp 6-way
Electrical Panel to Relay Module 1
Main Electrical Panel
268
Amp 6-way
Electrical Panel to Relay Module 2
Main Electrical Panel
269
Amp 6-way
Electrical Panel to Relay Module 2
Main Electrical Panel
270
Amp 6-way
Electrical Panel to Relay Module 1
Main Electrical Panel
271
Amp 6-way
Electrical Panel to Relay Module 2
Main Electrical Panel
275
Amp 2-way
Engine to Coolant Module
Engine and Settee Area
275A
Amp 5-way
Engine to Coolant Probe
Engine and Settee Area
301
WP 4-way
Engine to Bulkhead Extension
Engine and Settee Area
301A
WP 4-way
Bulkhead Extension to Bulkhead Electrical Panel
Rear Bulkhead Electric Panel
305
WP 1-way
Engine Spare
Engine and Settee Area
325
Relay Socket
Engine to Fan Relay
Engine and Settee Area
328
WP 3-way
Console to Farebox
Console Area
335
Amp Mini Relay Socket Dash to Fare Box Relay
Console Area
336
Amp 4-way
Dash to Crime Alarm
Console Area
336
Amp 9-way
Exit Door Panel to Door Controls
RH Roof Duct
400
Amp 2-way
Main Electrical Panel to RH Aid Passenger
RH Roof Duct
401
Amp 15-way
Bulkhead Electrical Panel to Bulkhead Extension
Rear Bulkhead Electric Panel
402
Amp 15-way
Bulkhead Electrical Panel to Bulkhead Extension
Rear Bulkhead Electric Panel
403
Amp 15-way
Bulkhead Electrical Panel to Bulkhead Extension
Rear Bulkhead Electric Panel
404
Amp 15-way
Bulkhead Electrical Panel to Bulkhead Extension
Rear Bulkhead Electric Panel
406
Amp 15-way
Bulkhead Electrical Panel to Relay Panel
Rear Bulkhead Electric Panel
407
Amp 15-way
Bulkhead Electrical Panel to Relay Panel
Rear Bulkhead Electric Panel
408
Amp 15-way
Bulkhead Electrical Panel to Relay Panel
Rear Bulkhead Electric Panel
450
Diode Block
Bulkhead Electrical Panel to Diode Block
Rear Bulkhead Electric Panel
450
Relay Socket
Main Electrical Panel to Heated Destination Sign
Main Electrical Panel
601
WP 6-way
Engine to Rear Throttle
Engine and Settee Area
602
WP 6-way
Engine to Rear Throttle
Engine and Settee Area
608
Amp 2-way
LH Ceiling to Stop Request
LH Roof Duct
609
Amp 2-way
LH Ceiling to Aid Passsenger
LH Roof Duct
610
WP 2-way
LH Ceiling to Side Marker Light
LH Roof Duct
652
Relay Socket
Bulkhead Electrical Panel to EPL Relay
Rear Bulkhead Electric Panel
653
Relay Socket
Bulkhead Electrical Panel to Wait Light Relay
Rear Bulkhead Electric Panel
1939
Deutsch 3-way
Engine to J-1939 Comm
Engine and Settee Area
18
1939A
Deutsch 3-way
Engine to J-1939 Comm
Engine and Settee Area
A1
Amp 36-way
Dash to A1 Module
Console Area
A2
Amp 36-way
Dash to A2 Module
Console Area
B2
Amp 36-way
Electrical Panel to B2 Module
Main Electrical Panel
B3
Amp 36-way
Electrical Panel to B3 Module
Main Electrical Panel
C1
Amp 36-way
Exit Door Panel to C1 Module
RH Roof Duct
CBL1A
Deutsch 8-way
RH Ceiling to Console I/O Modules
Console Area
CBL1B
Deutsch 8-way
RH Ceiling to Overhead I/O Modules
Main Electrical Panel
CBL2A
Deutsch 8-way
RH Ceiling to Overhead I/O Modules
Main Electrical Panel
CBL2B
Deutsch 8-way
RH Ceiling to Exit Door I/O Modules
RH Roof Duct
CBL3A
Deutsch 8-way
RH Ceiling to Exit Door I/O Modules
RH Roof Duct
CBL3B
Deutsch 8-way
RH Ceiling to Rear Bulkhead Modules
Rear Bulkhead Electric Panel
CBL4A
Deutsch 8-way
RH Ceiling to Rear Bulkhead Modules
Rear Bulkhead Electric Panel
CBL4B
Deutsch 8-way
RH Ceiling to Console I/O Modules
Console Area
D1
Amp 36-way
Bulkhead Electrical Panel to D1 Module
Rear Bulkhead Electric Panel
D2
Amp 36-way
Bulkhead Electrical Panel to D2 Module
Rear Bulkhead Electric Panel
D3
Amp 36-way
Bulkhead Electrical Panel to D3 Module
Rear Bulkhead Electric Panel
LT-CON1-4
WP 2-way
Engine to Compartment Lights
Rear Run Box Area
PMS
Deutsch 2-way
Bulkhead Electrical Panel to I/O Power Module
Rear Bulkhead Electric Panel
RMP-CON
Deutsch 6-way
Dash to Ramp Dash Panel Controls
Dash Area
SPARE
Amp 6-way
Dash to Console
Console Area
HARNESS CONNECTION TABULATION
A - Electrical compartment above driver
B - Console area at driver’s left
C - Area below “A” post
D - Dash area
E - Front cap and front door
F - Chassis, front
G - Roof, RH and rear door
H - Air tank closeout
J - Engine and settee area
K - Chassis, center
L - Transmission area
M - Rear run box area
N - A/C compressor area
P - Roof, LH
R - Rear bulkhead electrical panel
S - Rear cap
20
Harness Listing
Indygo, August 2003
Chassis 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
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
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
Chapter 1-Powertrain
24
08/03
SENSOR THROTTLE POSITION IDLE VALIDATION SWITCH SENSOR POSITION THROTTLE REMOTE OPTIONAL SWITCH THROTTLE REMOTE OPTIONALFRONT ELECTRICAL PANEL
24V INPUT C-A2-8 A2-8 PROCESSOR OUTPUT B1-5 C127-8 B1-3 C127-7 PROCESSOR OUTPUT
CHECK ENG. LIGHT STOP ENG. LIGHT
MAINTENANCE
SMART INDICATOR LIGHT BAR
B1-12 B1-4 WAIT TO START PROCESSOR OUTPUT PROCESSOR OUTPUT BAT-24V2 RED GRN NEG-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 INPUT C-D1-2-3 D1-11 GROUND INPUT C-D1-3-4 D1-20 CB 63 24V IGN 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 C1-30
THROTTLE POSITION SIGNAL 128-B
128-A 128-C C1-19
THROTTLE POSITION RETURN
C49-B C49-A J1587 DATA LINK (+) C1-49 C1-50 J1587 DATA LINK (-) C49B-B C49B-A C49-E C49-C REAR DDR READER C49B-C C49B-E FRONT DDR READER - + - + GROUND AT FRAME RAIL GROUND STUD AT VOLTAGE REGULATOR MAIN POWER CUTOFF SWITCH BATTERYS ENG-NEG BLK ECM
BATTERY BOX AREA FUSES LOCATED AT ENGINE
COMPARTMENT, RH
REAR RUN BOX
FRONT OFF REAR REAR IGNITION SWITCH A05 C8-I FAST-IDL YEL INTRLOC BLU WARN-LT PPL STOP-LT RED C8-N OVERRIDE WHT C1-45 C10-U
KEY SWITCH INPUT
12V IGN C10-O C10-N TPS-5V RED TPS-RET WHT TPS BLK 129-A 129-B 129-C ON-IDLE OFF-IDLE OFF-IDL GRN ON-IDL BLU
REMOTE THROTTLE ENABLE
C1-36 C1-35 IDL-INC BLU IDL-DEC ORG C14-28 C14-27 DIAGNOSTIC DEC SW DIAGNOSTIC INC SW 1587-POS WHT 1587-NEG BLU C1-8
VEHICLE SPEED SIGNAL PPL157 DIGITAL SPEED SIGNAL SEE TRANS. SCHEMATIC
COOLANT LEVEL LOW SIGNAL COOLANT LEVEL HIGH SIGNAL COOLANT LEVEL RETURN
A37 A27 A49 A14 CLS-RET WHT CLS-5V BLK CLS-LO YEL CLS-HI BLU C7-A C7-D C7-B C7-C LOW COOLANT PROBE +5VDC SUPPLY A41
FAN CLUTCH SUPPLY #1 C1D-N
SWITCH DIAGNOSTIC C326-A C326-D C326-B C326-C GND GRN 12V-IGN YEL IGN-12V YEL GND GRN C186-4 C186-9 C8A-M 157 PPL IVAL-COM ORG
REMOTE THROTTLE POSITION SIGNAL C1-09 TPS2 WHT ON OFF C10-S C10-T C10-P REM-THRO BLK C8-R ENG-IGN PINK GND GRN
WAIT TO START LIGHT C1-11 WAIT-LTYEL C8C-D
STARTER DISABLE A01 GRAY J1939 DATA LINK (-) J1939 DATA LINK (+) A44 A12 GRN YEL A02 J1939 DATA LINK (SHIELD)
J1939-A J1939-B J1939-C SEE ANTILOCK OR TRANS SCHEMATIC C8C-C BRAKE RED C1-33
SERVICE BRAKE SWITCH
12V IGN 12V-IGN YEL FAST-IDL YEL INTRLOC BLU WAIT-LT YEL ENG-IGN PINK REM-THRO BLK TPS2 WHT TPS-5V RED TPS-RET WHT TPS BLK C14-20 C14-18 OFF-IDL ORG ON-IDL BLU C14-19 IVAL-COM GRN 1587-NEG BLU 1587-POS
WHT TO ABS SYSTEMSEE ABS SCHEMATIC
1587-NEG BLU 1587-POS WHT C14-5 C14-4 1587-POS WHT 1587-NEG BLU TPS2-RET GRN TPS2 WHT TPS2-5V BLU REM-THRO BLK C8-V BRAKE RED EPL ORG
LOW FLUIDS LIGHT C1-04 C8-J EPLORG
IDL-DEC ORG
IDL-INC BLU
DIAGNOSTIC REQUEST C1-37 DIAG-REQBRN C8-L DIAG-REQBRN
C159-1 C159-3 C159-2 IVAL-COM GRN IDL-INC BLU IDL-DEC ORG ENGINE TEST/ DIAG-REQ GRN C164-2 24V-IGN RED SEE TRANS SCHEMATIC
TO TRANSMISSION 1587-NEG BLU 1587-POS WHT C8A-I
C8A-J 1587-POS C201-A WHT 1587-NEG BLU C201-B FUSE 10A FUSE 10A FUSE 7.5A BAT-3 RED FUSE 7.5A FUSE 7.5A BAT-2A RED BAT-2 RED BAT-4 RED BAT-5 RED BAT-1 RED C1D-F C1D-E C1D-P C1D-H C1D-W C1D-C C1D-D C1D-S C1D-M C1D-B A50 BATTERY 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-NEG3 BLK ENG-NEG5 BLK ENG-NEG4 BLK ENG-NEG2 BLK ENG-NEG1 BLK BAT-1A RED BAT-4A RED BAT-5A RED BAT-3A RED 24V-BAT RED PANEL FRAME GROUND C1-20 TPS2-RET GRN TPS2-5V BLU C1-10
REMOTE THROTTLE POSITION RETURN
REMOTE THROTTLE POSITION +5V
TPS2-RET GRN TPS2-5V BLU 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-O
ENGINE BRAKE ENABLE
ENGINE BRAKE 1 C1-34 B-34PPL 0-FUEL
WHT
C1-41
INTAKE AIR HEATER #1 IN-HTR1PPL
AIR INTAKE GRID HEATER SOLENOID AIR INTAKE GRID HEATER
ENGINE BLOCK GROUND
NEXT TO STARTER RELAY BOX MOUNTED IN ENGINE COMPARTMENT
GND GRN
FUSE 125A 24V INTAKE AIR HEATER #2 C1-31 IN-HTR2BLU
(PART OF FUEL FILTER) WIF SENSOR
TPS2-RET GRN C1-40
WATER IN FUEL SENSOR
WIF-SEN RED
WATER IN FUEL LIGHT C1-02 WIFYEL
NEG GRN SWITCH STOP ENGINE OVERRIDE (OPTIONAL) OVERRIDE WHT C96D-6 SPARE 3 WHT OVERRIDE WHT C14A-25 C14-25 24V BATT CB 47 C403-3 C402-7 C406-4 C402-12 C403-4 C403-7 C402-10 C406-14 C406-13 NEG-9 GRN 157 PPL
DIGITAL SPEED SIGNAL 157
PPL
C208-C
SEE TRANS. SCHEMATIC
BRAK-ENG RED ENG-RUN WHT FAST-IDL YEL INTERLOC BLU STOP-LT PPL WARN-LT PPL WAIT-LT YEL DIAG-REQ YEL NEG-9 GRN NEG-9 GRN NEG-9 GRN STOP ENGINE OVERRIDE
C8-J C8-J C402-9 WIF YEL C8-J C403-9 EPL ORG C402-14 ENG-IGN PINK OVERRIDE WHT ENG-RUN WHT ENG-RUN WHT
13-45115R016A
REAR RUN BOX
SWITCH
FRONT IGNITION
A1-17
C-A1-3
LOAD10A
INPUT POWER
TO I/O PMS
IGNITION
PNK
ENG-IGN
PNK
PNK
IGNITION
I.S.L.
E.C.M.
BLK
ENG-NEG
TO NEG
BATTERY POST
PNK
ENG-IGN
BAT-5
RED
"DOWN" CHASSIS
RIDGID CONDUIT
ENGINE
MTD.
DRIVERS CONSOLE
BELOW BATT. SWITCH
100A
FROM BATTERY
POS +24V
BAT-7
RED
RED
BAT-4
BAT-6
RED
BAT-3 RED BAT-2 RED BAT-1 REDBAT-4
RED
FUSE 2 7.5A 7.5A FUSE 3 4-7.5A FUSE 10A FUSE 6 FUSE 5 10A ENG-NEG4 BLK ENG-NEG3 BLK ENG-NEG8 BLK ENG-NEG1 BLK ENG-NEG2 BLK ENG-NEG5 BLKENG-NEG
BLK
INPUT
30 85 87 86 30 85 86 87 30 85 86 87BAT-12V
BAT-24V
BAT-24V
NEG-3
GRN
GRN
NEG-3
IGNITION RELAY #1 (24V) 24V IGNITION TO C.B. 27 THRU 34 12V IGNITION TO C.B. 12 THRU 16 YEL RED REDOVERHEAD
ELECTRICAL COMP.
B
1
RELAY #2 (24V) IGNITION RELAY #3 (24V) IGNITIONMODULE
RR-IGN
INPUT
A1-23
C-A2-23
RELAYS IGNITION #1,2,3START SELECTOR
CENTER IS OFF
FRONT START
ILLUSTRATED IN
OPTIONAL 4TH
POLE ACTIVATES
REAR THROTTLE
I.S.C.
TO I/O PMS
MODULE
ELECTRICAL COMP.
OVERHEAD
85 86NEG-1
GRN
BAT-24V
30 87 IGNITION RELAYSPINK
IGN-CB
RED
FR-IGN
BAT-24V1
RED
BAT-24V CB 44 (10A)C102-15
IGN-CB PINKPINK
IGN-CB
C96-12
C10-D9
C10-D1
IGNITION
PINK
FRT-IGN
RED
BAT-24V CB 58 (10A)C96-3
RED
FR-IGN
C101-11
RED
FR-IGN
FR-IGN
RED
RED
FR-IGN
C14B-17
C14A-17
RED
FR-IGN
RED
FR-IGN
FR-IGN
RED
RED
MASTER
WAKE
GRN
PLC-POS
RED
ENG-BAT
CB 'ENGINE POWER"
25A
C8-P
C402-13
C402-14
C1D-S
C1D-M
C1D-D
C1D-A
C203-A
RED
RED
ENG-BAT
PLC-BAT
RED
C1D-C
C1D-B
C1D-P
C1D-H
C210-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 POWER
TOOL POWER
C8-R
C102-14
FR-IGN
RED
IGNITION
ORG
IGNITION
ORG
C10-F8
C8A-V
ORG
RR-IGN
C10-G1
C14A-6
RR-IGN
ORG
C14B-6
RR-IGN
ORG
C101-14
ORG
ORG
RR-IGN
C404-4
BAT-24V1 REDC203-C
C250-D
C250-E
C101-11
PLC-POS
RED
CB 63 (10A) IGN-24V13-48209R010A
ENGINE POWER
26
09/03
ENG-RUN
ECM
C1D-J
WHT
ISC/ISL
REAR RUN BOX
ISL'03
ECM
123 TAN
ENG-RUN
WHT
5A ATC FUSE
S-MTR1
RED
S
A
B
BAT +
CABLE
CRANKING
MOTOR
SOLENOID
FRONT START SWITCH SWITCH ROTARY IGNITIONOVERHEAD ELECT. PANEL
B1-33
C127-1
INDICATOR STARTERREAR START
SWITCH
START SELECTOR SW. "FRONT RUN" POS. ILLUSTRATED IN THENOTES:
1. ENGINE ECM WILL OUTPUT A 24V POS
SIGNAL ON WIRE STRT-DIS TO PREVENT
ACCIDENTAL STARTER ENGAGEMENT.
2. TRANS. ECU WILL OUTPUT A 24V+
SIGNAL ON WIRE 123 IF NEUTRAL IS
ATTAINED.
3. PROCESSOR INPUT D3-18 WILL
DISABLE ANY HEAVY LOADS DURING
ENGINE CRANKING.
4. WIRES NEG-3 AND STRT-TMP BLUE
ARE JUMPERED TOGETHER IF A
NON-OVERCRANK PROTECTED STARTER IS
USED.
RED
BULKHEAD PANEL
24V BATTERYC.B. 58
D2-20
24V INPUT
C-D2-15
STRT-TEMP
BLU
NEG-3 GRNTHERMAL SWITCH
24V INPUT
D3-18
C-D3-7
S-MOTOR
RED
STARTER MAGNETIC SWITCH 24VR/H CEILING HARNESS
STARTER ASM.
24V
CENTER POSITION DISABLES FRONT AND REAR IGN./STARTRED
S-MOTOR
GRAY STRT-MAGB
1
TO IGNITION CIRCUITS SEE IGNITION SCHEM.DRIVERS SIDE CONSOLE
DASH PANEL
C127-4
PROCESSOR OUTPUT
SMART INDICATOR LIGHT BAR
C127-2
C127-3
C127-9
C127-6
ENGINE COMPARTMENT
TRANS.NEUTRAL
WHT
ALLISONENGINE COMPARTMENT
NEG-1 GREENBRN
NEUTRAL
GRAY
STRT-DIS
D4-22
24V INPUT
C-D4-23
RED
S-MOTOR
ENG-RUN
WHT
STRT-TEMP BLUD1-12
GND INPUT
C-D1-2-4 STRT-TMP BLUSTART
GRAY
START
GRAY
D4-17
24V INPUT
C-D4-3
STRT-MAG
GRAY
BAT-24V3
RED
D4-1
C-D4-1
C-D4-5
10A OUTPUT
GRAY
STRT-MAG
START
GRAY
40A ATC FUSE
@ COVERED
FUSE PANEL
SOFTWARE LOGIC.
5. SEE LADDER DIAGRAMS FOR COMPLETE
ECU
RED
CB 20
BAT-24V
C102-15
PINK
IGN-CB
C96-12
PINKIGN-CBPINK FR-IGN
C96-9
GRAYFR-STRTC101-10
GRAY
FR-STRT
C10-D5
RED
BAT-24V1
GRAY
FR-STRT
RR-IGN
RED
RR-STRT
BRN
C10-C6
START
GRAY
GRAY
START
C1-49
BAT-24V
RED
PINK
IGN-CB
10A
STRT-BAT
C8A-V
RED
BAT-24V
C10-F8
BAT-24V
RED
C56-D
RED
STRT-BAT
RED
STRT-SOL
C8A-P
FR-IGN PINK FR-STRT GRAYBAT-24V
BAT-24V4
CB 23
10A
RED
BAT-24V
RED
BAT-24V4
RED
NEG-12
GRN
10A
C404-4
C403-8
C14B-16
C14A-16
C8-V
C403-3
C8A-Q
C404-13
C8-K
C404-14
C400-M2
C404-11
STRT-SOL
RED
RED
STRT-SOL
24V BATTERY
FR-STRT
GRY
CV-6
24V-BAT513-48239R011B
STARTING SYSTEM
THROTTLE CONTROL
28
08/03
FAST IDLE
REAR ENCLOSURE
DRIVERS FAST IDLE SWITCH
A2-9 C-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 AND THROTTLE INTERLOCK ARE ON. INPUT
INPUT IS ON. (A2-9)
C127-9 C127-1 BAT-24V4 RED
NEG-12 GRN
FAST 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 D1-7ENGINE
E.C.M.
C1-4
YELLOW
F-IDLE
F-IDLE
YELLOW
C8-I
FST-IDL
WHITE
BAT-24V
RED
WHITE
FST-IDL
BAT-24V
RED
C96-8
C96-2
C102-13
BAT-24V1
RED
ISL'03
C402-7
YELLOW
F-IDLE
ENG-NEG
BLACK
ISL
E.C.M.
ENGINE
C1-46
OPTIONAL EARLIER ISL
BATTERY DISCONNECT SWITCH
DRIVERS SIDE CONSOLE
CB 41/17
C49-4
BATTERY DISCONNECT MOUNTED MICRO SWITCH NORMALLY CLOSED OPENS WITH DISCONNECT IN OFF POSITION
C49-2
BATTERY DISCONNECT SWITCH COMPARTMENT
NOTE:
LACK OF INPUT AT A2-32 WILL CAUSE AN OUTPUT TO ENERGIZE THE ALTERNATOR DISABLE RELAY.
(SHUT-DOWN CHARGING SYSTEM) SEE CHARGING SYSTEM SCHEM.
BLACK CHRG-SWI
BAT-24V
RED
BAT-24V
RED BLACK BATT-SWI
C102-13
BAT-24V
RED
BAT-24V RED
AIR TANK/ELECTRICAL COMP.
24V INPUT A2-32 C-A2-32 *DENOTES CB # * W/REDUCED RELAYS B A B A
13-44015R004B
30
03/02
13-48272R000B
15A RELAY 8-86 PPL A123 A167 BLUE GREEN A115 A125 BLUE GREEN A105
D1-11
D1-17
D1-20
D1-13
C-D1-2-7 GREEN 115 C208-B 167 WHITE C67-B 125 WHITE C67-E 105 GREEN C67-CALLISON WTEC III
ELECTRONIC
CONTROL
UNIT (ECU)
CV-19 CV-18 CV-5 CS-31 CV-29 CV-11 CS-27 C56-A ORG 137 GREEN C56-B 155 BLUE C208-A A163 163 BLUE GREEN 155 CV-1 CV-16 CV-32 CV-17 CV-6 C56-D CV-4 IGN-24V CB 64 CV-31 CV-27 YELLOW WHITE 161 154 CV-26 C-A2-24A2-24
PPL BRK-SW C49-1 BRK-LT PPL C102-13 RETARDRA2-5
C-A2-5 RETARDR GRN C96D-5 GRN BAT-24V BAT-24V1 REDCONSOLE
151 142 CONSOLE DIAGNOSTIC C100-B C100-A CONN RETARDER ON/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 LAMPS OUTPUT (D2-4). ie INPUT OFF=OUTPUT ON
4. D1-17 INPUT "SPEED SIGNAL" DISABLES EXIT DOOR 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) PROVIDES NEUTRAL INTERLOCKS FOR (RAMP, FAST IDLE, KNEELING, ETC)
7. REVERSE INPUT (D1-10) TURNS OFF INTERIOR LAMPS OUTPUTS (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-30 157 SPEEDOMETER TRANS TEMP INDICATOR RETARDER ZERO SPEED CHECK TRANS. SHIFT INHIBIT RETARDER REQUEST C56-C C56-E WHITE154 A161 YEL BLUE A154 BRAKE SYSTEM SEE ANTI-LOCK A155 GREEN
GND INPUT
GND OUTPUT
GND OUTPUT
GND OUTPUT
BRAKE SWITCH A137 PPL C56-FGND INPUT
GND INPUT
GND INPUT
10A A146 YELLOW YELLOW 146 C-D1-2-212V INPUT
REVERSED1-10
113 REDC-D2-15
D2-20
24V INPUT
NEUTRAL PPL A123 A123 PPL C402-9 TO NEUTRAL RELAY (SEE START SCHEM.)CONNECT SWITCH WIRES W/O RETARDER SWITCH DIAGNOSTIC REAR RUN CONN BLU WHT A B
REAR RUN BOX
"TRANS TEMP" PROCESSOR OUTPUT B1-27 "CHECK TRANS" C127-1 C127-9 CB 23 GREEN NEG-12 BAT-24V4 RED B1-40
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT B1-17 PROCESSOR OUTPUT "RETARDER APPLIED" PROCESSOR OUTPUT "SPEED SWITCH" B1-21 PROCESSOR OUTPUT "RETARDER DISABLED" B1-15 BLUE 163 CS-1 CS-17 WHITE BLUE 123 TAN TAN
BULKHEAD ENCLOSURE
WHITE 1587-POS1587-NEG BLUE BLUE 1587-NEG WHITE 1587-POS A157 PPL
ENGINE
1587-NEG BLUE WHITE 1587-POS A157PURPLE PURPLE A157
PURPLE A157 BULKHEAD EXTENSION HARNESS R/H CEILING A157 PURPLE 1587-NEG BLUE WHITE 1587-POS A157
PURPLE R/H "B" POST COVER
A157
PURPLE (SPEED SIGNAL)
C95-2 RED BAT-24V BAT-24V RED C49-2 BAT-24V RED B A BAT-24V RED C301A-A
C301A-D C301A-C C301A-B
136 PINK PINK 136 GRAY 143 GRAY 143 C301-D C301-C C301-B C301-A A143B BLACK BLACK A143A A136B RED RED A136A A143B BLACK A143A BLACK A136B RED A136A RED A136 RED A143 BLACK CB 61 RED
FROM 24 V BATTERY POST FROM BATTERY NEG. POST
100A
10A
AIR TANK/ELECTRICAL COMP.
BAT-24V CB 17 CHASSIS CONDUIT PURPLE A157
BULKHEAD ENCLOSURE
123 TAN 1587-NEG BLUE WHITE 1587-POS FRONT BRAKE LAMP SWITCH BATTERY DISCONNECT COMPARTMENT113 WHITE C407-12 A113 RED C67-D 1587-POS 1587-NEG A157 S-40E (DDC) ISM CUMMINS ISC/ISL CUMMINS ECM CONNECTOR CAVITY NO.'S C1-27 C1-26 C1D-21 C1-50 C1-49 C1-8 C1-39 C1-17 C1-16
PURPLE BLUE WHITE
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 CONVERTER LOCK UP AND THE RETARDER ARE RELEASED. 10. WHEN 154 AND 161 MAKE CONNECTION
9. RETARDER SWITCH IS EITHER FRONT OR REAR (NOT BOTH)
C201-A C201-B C8A-I C8A-J C8A-M C186-9 C186-4 C10-G3 C10-G5 C101-9 C101-6 C101-8 C403-4 C208-C ON/OFF RETARDER SEE NOTE 9 C10-H4 C10-F8 C8-C C8A-V SPAR-IN WHITE WHITE RED BAT-24V SEE NOTE 9 C402-3 C404-4 SPAR-IN WHITE SPAR-IN BAT-24V1 RED RED BAT-24V1 C14A-4 C14A-5 C14A-8 C14B-8 C14B-5 C14B-4 WHITE BLUE
A157 PPL 1587-POS 1587-NEG BAT-24V CB 58
C-D3-11
RETARDER REQUESTD3-19
RETARDER REQUEST 24V INPUTSFRONT BRAKE SWITCH
BAT-24V1 RED SPAR-IN WHT SEE NOTE 9 C94-8
ECM
ABS
ECU
SEE NOTE 1111. FUSES MTD. ON CONSOLE FOR 35 AND 40FT BUS FUSES MTD. IN BATTERY COMPT. ON 29FT BUS
SCHEMATIC 10A 10A A123 RELAY 8-86 C402-9 PURPLE RELAY 8-86 C1-E2 C1-C1 C1-C2 S-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-NEG BLACK C-D1-1-1 C-D1-1-12 D1-1 ENG-NEG BLACK C-D1-1-2 C-D1-1-12 D1-2 BLACK ENG-NEG C1-20 C1-10 C1-27 ISL'03 CUMMINS
13-38761R012A
TRANSMISSION INTERFACE
32
08/03
D1-2 C-D1-1-2 BLUEA1637 PSI SWITCH
164 YELLOW WHITE 133 135D GREEN 133 WHITE ORANGE 172 WHITE 133 PPL/WHT 173 BLUE 171 133 WHITE4 PSI SWITCH
2 PSI SWITCHTRANS E.C.U.
CT-9
CT-11
CT-25
C B A C A B124E PINK 164E YELLOW 135E GREEN
C208-A
CS-27
RETARDER
RESISTANCE
RETARDER
SOLENOID
A
B
A
B
A
B
B
A
CT-19
CT-24
127 WHITE
116 YELLOW
B
A
TEMP SENSOR
RETARDER
138 ORANGE
CT-28
135 GREEN
A
B
116N YEL
101 BLUE
ACCUMULATOR
SOLENOID
CT-23
CV-18
WHITE 125C67-E
BLUE A125 D1-20BULKHEAD MOUNTED ELECTRICAL
COMPARTMENT
BAT-24V
RED
C-A2-5
A2-5RETARDER
GREEN
DRIVERS
RETARDER REQUEST
RETARDER APPLIED
LOWMEDIUM
HIGH
NOTES:1. THE RETARDER WILL APPLY IF: A. THE TRANS. IS IN LOCK-UP AND B. THE THROTTLE IS RELEASED AND D. THE ON/OFF SWITCH IS NOT TURNED OFF. 2. THE RETARDER AND LOCK-UP CLUTCH CAN BE
DISABLED BY THE ABS OR IF WIRE 154 IS SHORTED TO
CHASSIS OR SHORTED TO WIRE 161 (SEE ABS OR TRANS. SCHEMATIC) 3. THE RETARDER APPLIED INDICATOR AND COACH BRAKE LAMPS
WILL BE ILLUMINATED IF THERE IS AN ABSENCE OF INPUT AT 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 OUTPUTB1-14
RETARDER APPLIED
C127-1 C127-9 GRN NEG-12 BAT-24V4 REDB1-17
SMART INDICATOR LIGHT BAR
PROCESSOR OUTPUT CB 17 BAT-24V C95-2
RETARDER
GREEN
L/H "B" POST
C102-13BAT-24V1
RED
RETARDR
GREEN
RETARDER ON/OFF
SWITCH OPTION 2
SWITCH R/H DASH
RETARDER ON/OFF
RETARDER
GREEN
BAT-24V
RED
GREEN
RETARDR
BAT-24V
RED
BAT-24V4
CB 23RED
JUMPER 50-29989-000 163 BLUEAIR TANK/ELECTRICAL COMPARTMENT
NO. 3 LOCATION
SWITCH OPTION
RETARDER ON/OFF
WHITE
SPAR-IN
BAT-24V
RED
C10-H4
C10-F8
REAR RUN BOX
C8-C
C8A-V
SPAR-IN
WHITE
BAT-24V1
RED
BAT-24V1
RED
SPAR-IN
WHITE
C402-3
C404-4
RETARDER SWITCH
24V INPUT D3-19C-D3-11
WHITEIN-D3-19 RETARDER SWITCH IN-D3-19 WHITEMODULE
CB 58RED
BAT-24V
OVER DRIVERS
SEAT COMP.
SIDE
CONSOLE
PANEL #1 OPTION 1
C96-12 C96D-5PANEL #5 STD. LOCATION
SWITCH IGN. SWITCH
RETARDER ON/OFF
BAT-24V
RED
IGN-CB
PINK
IGN-CB
PINK
BAT-24V CB 20 C102-15 ADDITIONAL NOTES:5. INSTALL MAX. OF ONE RETARDER SWITCH. JUMPER BAT-24V RED WIRE TO RETARDER GREEN WIRE IF NO SWITCH IS INSTALLED. 6. SEE LADDER DIAGRAMS FOR COMPLETE
PROCESSOR LOGIC.
7. JUMPER 171 BLUE WIRE TO THE 133 WHITE WIRE WITH JUMPER P/N 50-29989-000 TO ACHIEVE LOW
STAGE THROTTLE ACTIVATED RETARDER (SEE NOTE 7)
PRESSURE SWITCHES MTD.
ABOVE REAR AXLE
RETARDER MODULE MTD.
NEXT TO TRANS. E.C.U.
10A
10A 15A 10A
C-D1-3-4
6-WAY DEUTSCH APPLIED HERE SEE 50-39450-005&50-44200-001
