2003 DODGE RAM Ignition switch

STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND ON FUSES POWERING
SEVERAL LOADS
(1) Refer to the wiring diagrams and disconnect or
isolate all items on the suspected fused circuits.
(2) Replace the blown fuse.
(3) Supply power to the fuse by turning ON the
ignition switch or re-connecting the battery.
(4) Start connecting or energizing the items in the
fuse circuit one at a time. When the fuse blows the
circuit with the short to ground has been isolated.
STANDARD PROCEDURE - TESTING FOR A
VOLTAGE DROP
(1) Connect the positive lead of the voltmeter to
the side of the circuit closest to the battery (Fig. 9).
(2) Connect the other lead of the voltmeter to the
other side of the switch, component or circuit.
(3) Operate the item.
(4) The voltmeter will show the difference in volt-
age between the two points.
SPECIAL TOOLS
WIRING/TERMINAL
Fig. 9 TESTING FOR VOLTAGE DROP
PROBING TOOL PACKAGE 6807
TERMINAL PICK TOOL SET 6680
TERMINAL REMOVING TOOLS 6932 AND 8638
TERMINAL REMOVING TOOL 6934
8W - 01 - 10 8W-01 WIRING DIAGRAM INFORMATIONDR
WIRING DIAGRAM INFORMATION (Continued)

8W-02 COMPONENT INDEX
Component Page
4WD Switch......................... 8W-30
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C Pressure Transducer................ 8W-42
A/C-Heater Control.................... 8W-42
Accelerator Pedal Position Sensor......... 8W-30
Adjustable Pedal Motor................. 8W-30
Adjustable Pedal Relay................. 8W-30
Adjustable Pedal Switch................ 8W-30
Airbag Control Modules................ 8W-43
Airbags............................. 8W-43
Ambient Temperature Sensor............ 8W-49
Amplifier Audio....................... 8W-47
Auto Shut Down Relay................. 8W-30
Automatic Day/Night Mirror............. 8W-49
Auxiliary Battery..................... 8W-20
Backup Lamp Switch.................. 8W-51
Battery Temperature Sensor............. 8W-30
Battery............................. 8W-20
Blend Door Actuator................... 8W-42
Blower Motor Resistor Block............. 8W-42
Blower Motor......................... 8W-42
Brake Lamp Switch.................... 8W-33
Brake Transmission Shift Interlock
Solenoid........................... 8W-40
Camshaft Position Sensor............... 8W-30
Capacitor............................ 8W-30
Center High Mounted Stop Lamp/Cargo
Lamp.......................... 8W-44, 51
Center High Mounted Stop Lamp-
Aftermarket..................... 8W-33, 51
Cigar Lighter Outlet................... 8W-41
Circuit Breaker....................... 8W-10
Clearance Lamps...................... 8W-50
Clockspring................. 8W-33, 41, 43, 47
Clutch Interlock Brake Switch........... 8W-21
Coil On Plugs........................ 8W-30
Compass/Mini-Trip Computer............ 8W-49
Condenser Fan Relay.................. 8W-42
Condenser Fan....................... 8W-42
Controller Antilock Brake............ 8W-34, 35
Crankshaft Position Sensor.............. 8W-30
Cylinder Lock Switch-Driver............. 8W-61
Cylinder Lock Switch-Passenger.......... 8W-61
Data Link Connector................... 8W-18
Data Link Connector-Engine............. 8W-18
Dome Lamp.......................... 8W-44
Door Ajar Switches.................... 8W-40
Door Lock Motor/Ajar Switches........ 8W-40, 61
Door Lock Switch-Passenger............. 8W-61
Driver Door Module.............. 8W-60, 61, 62
Electric Brake Provision............. 8W-33, 54Component Page
Electronic Throttle Control Module........ 8W-30
Engine Control Module................. 8W-30
Engine Coolant Temperature Sensor....... 8W-30
Engine Oil Pressure Switch.............. 8W-30
EVAP/Purge Solenoid.................. 8W-30
Evaporator Temperature Sensor.......... 8W-42
Fender Lamps........................ 8W-51
Fog Lamp Relay...................... 8W-50
Fog Lamps.......................... 8W-50
Front Control Module.................. 8W-10
Fuel Heater Relay..................... 8W-30
Fuel Heater.......................... 8W-30
Fuel Injectors........................ 8W-30
Fuel Injector Packs.................... 8W-30
Fuel Pump Module.................... 8W-30
Fuel Pump Motor..................... 8W-30
Fuel Pump Relay...................... 8W-30
Fuel Rail Pressure Sensor............... 8W-30
Fuses............................... 8W-10
Fusible Link......................... 8W-10
Grounds............................ 8W-15
Generator........................... 8W-20
Glove Box Lamp And Switch............. 8W-44
Headlamp Switch.................. 8W-40, 50
Headlamps.......................... 8W-50
Heated Mirror Relay................... 8W-62
Heated Seat Cushions.................. 8W-63
Heated Seat Switches.................. 8W-63
Horn Relay.......................... 8W-41
Horn Switch......................... 8W-41
Horns.............................. 8W-41
Idle Air Control Motor............ 8W-30, 30-36
Ignition Coils......................... 8W-30
Ignition Switch....................... 8W-10
Inlet Air Temperature/Pressure Sensor..... 8W-30
Input Speed Sensor.................... 8W-31
Instrument Cluster.................... 8W-40
Intake Air Heater Relays............... 8W-30
Intake Air Temperature Sensor........... 8W-30
Intake Air Temperature/Manifold Absolute
Pressure Sensor..................... 8W-30
Integrated Power Module............... 8W-10
Knock Sensors........................ 8W-30
Leak Detection Pump.................. 8W-30
License Lamps....................... 8W-51
Lift Pump Motor...................... 8W-30
Line Pressure Sensor................ 8W-30, 31
Lumbar Motors....................... 8W-63
Manifold Absolute Pressure Sensor........ 8W-30
Mode Door Actuators................... 8W-42
Multi-Function Switch............ 8W-40, 52, 53
Output Speed Sensor................... 8W-31
DR8W-02 COMPONENT INDEX 8W - 02 - 1

8W-10 POWER DISTRIBUTION
Component PageA/C Compressor Clutch....................8W-10-16, 43, 44
A/C Compressor Clutch Relay.................8W-10-16, 43, 44
A/C-Heater Control......................8W-10-46, 47, 58
Adjustable Pedal Relay......................8W-10-14, 34
Adjustable Pedal Switch.................8W-10-14, 34, 46, 58
Airbag Control Module......................8W-10-46, 48
Airbag Control Module-Left Side Impact...............8W-10-46
Airbag Control Module-Right Side Impact..............8W-10-46
Ambient Temperature Sensor...................8W-10-52, 54
Amplifier Audio...........................8W-10-33
Auto Shut Down Relay......................8W-10-11, 18
Automatic Day/Night Mirror...................8W-10-45, 52
Auxiliary Battery...........................8W-10-11
Backup Lamp Switch.......................8W-10-48, 53
Battery..............................8W-10-11, 18
Blower Motor.............................8W-10-56
Brake Lamp Switch....................8W-10-13, 32, 43, 44
Capacitor.............................8W-10-21, 23
Center High Mounted Stop Lamp/Cargo Lamp............8W-10-42
Cigar Lighter Outlet.........................8W-10-50
Circuit Breaker............................8W-10-56
Clearance Lamp No. 1........................8W-10-37
Clearance Lamp No. 2........................8W-10-37
Clearance Lamp No. 3........................8W-10-37
Clearance Lamp No. 4........................8W-10-37
Clearance Lamp No. 5........................8W-10-37
Clutch Interlock Brake Switch....................8W-10-39
Coil On Plug No. 1........................8W-10-19, 22
Coil On Plug No. 2........................8W-10-20, 21
Coil On Plug No. 3........................8W-10-19, 22
Coil On Plug No. 4........................8W-10-20, 21
Coil On Plug No. 5........................8W-10-19, 22
Coil On Plug No. 6........................8W-10-20, 21
Coil On Plug No. 7........................8W-10-19, 22
Coil On Plug No. 8........................8W-10-20, 21
Compass/Mini-Trip Computer...................8W-10-42, 45
Condenser Fan..........................8W-10-17, 49
Condenser Fan Relay.......................8W-10-17, 49
Controller Antilock Brake...................8W-10-13, 30, 48
Data Link Connector.......................8W-10-32, 54
Dome Lamp.............................8W-10-42
Door Lock Switch-Passenger.....................8W-10-45
Driver Door Module.......................8W-10-42, 56
Electric Brake Provision.......................8W-10-18
Engine Control Module........................8W-10-43
EVAP/Purge Solenoid.........................8W-10-45
Fender Lamp-Front Left.......................8W-10-37
Fender Lamp-Front Right......................8W-10-37
Fender Lamp-Rear Left.......................8W-10-37
Fender Lamp-Rear Right.......................8W-10-37
Fog Lamp Relay.........................8W-10-15, 38
Fog Lamp-Left............................8W-10-38
Fog Lamp-Right...........................8W-10-38
Front Control Module....8W-10-12, 31, 32, 34, 35, 36, 48, 45, 51, 52, 54 , 55
Fuel Heater.............................8W-10-57
Fuel Heater Relay........................8W-10-17, 57
Fuel Injector No. 1........................8W-10-22, 24
Fuel Injector No. 2....................8W-10-20, 21, 23, 24
Fuel Injector No. 3........................8W-10-22, 24
Fuel Injector No. 4....................8W-10-20, 21, 23, 24
Fuel Injector No. 5........................8W-10-22, 24
Fuel Injector No. 6....................8W-10-20, 21, 23, 24
Fuel Injector No. 7........................8W-10-22, 24
Fuel Injector No. 8....................8W-10-20, 21, 23, 24
Fuel Injector No. 9..........................8W-10-24
Fuel Injector No. 10.........................8W-10-23
Fuel Pump Module........................8W-10-16, 42
Fuel Pump Relay.....................8W-10-16, 42, 43, 44
Fuse 1..............................8W-10-11, 18
Fuse 2............................8W-10-11, 12, 18
Fuse 3..............................8W-10-12, 26
Fuse 4..............................8W-10-12, 26
Fuse 5.......................8W-10-11, 12, 13, 27, 28, 29
Fuse 6............................8W-10-12, 13, 30
Fuse 7..............................8W-10-13, 30
Fuse 8..............................8W-10-14, 31
Fuse 9..............................8W-10-12, 26
Fuse 10..............................8W-10-12, 26
Fuse 11............................8W-10-12, 13, 32
Fuse 12............................8W-10-17, 49, 57
Fuse 13..............................8W-10-12, 32
Fuse 14..............................8W-10-14, 39
Fuse 15............................8W-10-15, 16, 36
Fuse 16............................8W-10-16, 43, 44
Fuse 17............................8W-10-16, 17, 42
Fuse 18..............................8W-10-13, 32
Fuse 19..............................8W-10-13, 33
Fuse 20..............................8W-10-12, 26
Fuse 21..............................8W-10-13, 33
Fuse 22..............................8W-10-13, 33
Fuse 24..............................8W-10-13, 32
Fuse 25..............................8W-10-13, 33
Fuse 27............................8W-10-16, 17, 47
Fuse 28............................8W-10-43, 44, 45
Fuse 32..............................8W-10-16, 36
Fuse 33..............................8W-10-16, 36Component PageFuse 34..............................8W-10-16, 36
Fuse 35...............................8W-10-48
Fuse 36..............................8W-10-47, 58
Fuse 37...............................8W-10-48
Fuse 38..............................8W-10-47, 48
Fuse 40............................8W-10-14, 15, 34
Fuse 41..............................8W-10-15, 38
Fuse 42..............................8W-10-13, 34
Fuse 43..............................8W-10-13, 34
Fuse 45............................8W-10-15, 16, 38
Fuse 46............................8W-10-14, 15, 35
Fuse 47..............................8W-10-15, 35
Fuse 48..............................8W-10-14, 34
Fuse 49..............................8W-10-11, 18
Fuse 50...............................8W-10-45
Fuse 51............................8W-10-13, 14, 32
Fuse 52..............................8W-10-47, 48
Fuse 53...............................8W-10-45
Fusible Link.............................8W-10-11
G103...............................8W-10-51, 52
G106...........................8W-10-31, 51, 55, 57
G107...............................8W-10-27, 29
G201.................................8W-10-26
Generator.............................8W-10-11, 28
Glove Box Lamp And Switch.....................8W-10-42
Headlamp Switch..........................8W-10-38
Headlamp-Left............................8W-10-55
Headlamp-Right...........................8W-10-55
Heated Mirror Relay.......................8W-10-17, 47
Horn Relay............................8W-10-15, 38
Horn-High Note...........................8W-10-38
Horn-Low Note............................8W-10-38
Ignition Coil.............................8W-10-24
Ignition Coil-Left...........................8W-10-23
Ignition Coil-Right..........................8W-10-23
Ignition Switch................8W-10-12, 26, 39, 45, 48, 50, 56
Instrument Cluster................8W-10-13, 26, 32, 33, 45, 50
Integrated Power Module . 8W-10-2, 3, 5, 11, 12, 13,, 14, 15, 16, 17, 18, 26, 27,
28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52,
54, 55, 57, 58
Leak Detection Pump........................8W-10-28
License Lamp-Left..........................8W-10-36
License Lamp-Right.........................8W-10-37
Overhead Map/Reading Lamp....................8W-10-42
Oxygen Sensor 1/1 Upstream.....................8W-10-25
Oxygen Sensor 1/2 Downstream...................8W-10-25
Oxygen Sensor 2/1 Upstream.....................8W-10-25
Oxygen Sensor 2/2 Downstream...................8W-10-25
Oxygen Sensor Downstream Relay................8W-10-11, 18
Park Lamp Relay.........................8W-10-16, 36
Park/Turn Signal Lamp-Left Front................8W-10-36, 51
Park/Turn Signal Lamp-Right Front...............8W-10-36, 51
Passenger Airbag On/Off Switch...................8W-10-46
Passenger Lumbar Switch......................8W-10-30
Power Mirror-Left..........................8W-10-47
Power Mirror-Right.........................8W-10-47
Power Outlet...........................8W-10-13, 33
Power Outlet-Console........................8W-10-34
Power Seat Switch-Driver......................8W-10-30
Power Seat Switch-Passenger....................8W-10-30
Power Window Circuit Breaker....................8W-10-56
Powertrain Control Module . 8W-10-17, 18, 19, 21, 23, 24, 28, 29, 33, 39, 40, 41,
42, 43, 44, 49, 57
PTCNo.1.........................8W-10-42, 43, 44, 45
PTCNo.2 ..............................8W-10-50
PTCNo.5 ..............................8W-10-35
Radio...............................8W-10-32, 50
Seat Belt Tensioner Reducer.....................8W-10-50
Seat Heater Interface Module....................8W-10-34
Sentry Key Immobilizer Module...............8W-10-33, 43, 44
Spare Relay.............................8W-10-58
Starter Motor...........................8W-10-14, 39
Starter Motor Relay.......................8W-10-14, 39
Tail/Stop/Turn Signal Lamp-Left.............8W-10-36, 51, 52, 54
Tail/Stop/Turn Signal Lamp-Right.............8W-10-37, 51, 52, 54
Tailgate Lamp Assembly.....................8W-10-36, 41
Trailer Tow Connector...................8W-10-15, 16, 35, 36
Trailer Tow Connector-Add On..............8W-10-18, 35, 36, 52
Trailer Tow Left Turn Relay...................8W-10-15, 35
Trailer Tow Right Turn Relay...................8W-10-15, 35
Transfer Case Control Module................8W-10-13, 34, 39
Transmission Control Module...............8W-10-12, 27, 41, 56
Transmission Control Relay................8W-10-12, 27, 28, 29
Transmission Range Sensor..................8W-10-40, 48, 53
Transmission Solenoid Assembly.................8W-10-12, 28
Transmission Solenoid/TRS Assembly.........8W-10-27, 29, 40, 48, 53
Underhood Lamp...........................8W-10-32
Vacuum Pump............................8W-10-43
Vistronic Fan Drive.........................8W-10-58
Washer Fluid Level Switch....................8W-10-52, 54
Washer Pump Motor-Front......................8W-10-52
Wiper High/Low Relay......................8W-10-14, 31
Wiper Motor-Front........................8W-10-31, 52
Wiper On/Off Relay........................8W-10-14, 31
DR8W-10 POWER DISTRIBUTION 8W - 10 - 1

8W-15 GROUND DISTRIBUTION
Component Page
A/C Compressor Clutch..................8W-15-9, 11
A/C-Heater Control....................8W-15-15, 17
Adjustable Pedal Switch...................8W-15-17
Airbag Control Module....................8W-15-18
Airbag Control Module-Left Side Impact.........8W-15-18
Airbag Control Module-Right Side Impact........8W-15-18
Amplifier Audio........................8W-15-14
Automatic Day/Night Mirror................8W-15-15
Auxiliary Battery........................8W-15-7
Battery..............................8W-15-7
Brake Lamp Switch......................8W-15-13
Brake Transmission Shift Interlock Solenoid.......8W-15-14
Center High Mounted Stop Lamp/Cargo Lamp.....8W-15-15
Cigar Lighter Outlet.....................8W-15-17
Clearance Lamp No. 1....................8W-15-16
Clearance Lamp No. 2....................8W-15-16
Clearance Lamp No. 3....................8W-15-16
Clearance Lamp No. 4....................8W-15-16
Clearance Lamp No. 5....................8W-15-16
Clockspring...........................8W-15-12
Clutch Interlock Brake Switch..............8W-15-2, 5
Compass/Mini-Trip Computer................8W-15-15
Condenser Fan........................8W-15-4, 6
Controller Antilock Brake...................8W-15-4
Cylinder Lock Switch-Driver................8W-15-19
Cylinder Lock Switch-Passenger..............8W-15-19
Data Link Connector.....................8W-15-13
Data Link Connector-Engine................8W-15-11
Door Ajar Switch-Driver...................8W-15-19
Door Ajar Switch-Left Rear.................8W-15-20
Door Ajar Switch-Passenger.................8W-15-19
Door Ajar Switch-Right Rear................8W-15-20
Door Lock Motor/Ajar Switch-Driver............8W-15-19
Door Lock Motor/Ajar Switch-Left Rear..........8W-15-20
Door Lock Motor/Ajar Switch-Passenger.........8W-15-19
Door Lock Motor/Ajar Switch-Right Rear.........8W-15-20
Door Lock Switch-Passenger.................8W-15-19
Driver Door Module......................8W-15-21
Electric Brake Provision..................8W-15-4, 6
Engine Control Module....................8W-15-11
Fender Lamp-Front Left....................8W-15-3
Fender Lamp-Front Right...................8W-15-3
Fender Lamp-Rear Left....................8W-15-3
Fender Lamp-Rear Right...................8W-15-3
Fog Lamp-Left........................8W-15-2, 5
Fog Lamp-Right.......................8W-15-2, 5
Fuel Heater...........................8W-15-11
Fuel Pump Module....................8W-15-3, 4, 6
G100................................8W-15-7
G101................................8W-15-7
G102................................8W-15-7
G103................................8W-15-2
G104..............................8W-15-5, 6
G105................................8W-15-7
G106................................8W-15-4
G107............................8W-15-8, 9, 10
G108................................8W-15-7
G109................................8W-15-7
G114 ...............................8W-15-11
G117 ...............................8W-15-11
Component Page
G120...............................8W-15-11
G201.............................8W-15-12, 13
G202.............................8W-15-14, 15
G203...............................8W-15-17
G204...............................8W-15-18
G301...............................8W-15-20
G302...............................8W-15-22
Generator..........................8W-15-10, 11
Headlamp Switch.......................8W-15-12
Headlamp-Left........................8W-15-2, 5
Headlamp-Right.........................8W-15-7
Heated Seat Cushion-Driver.................8W-15-22
Heated Seat Cushion-Passenger..............8W-15-22
Heated Seat Switch-Driver.................8W-15-13
Heated Seat Switch-Passenger...............8W-15-13
Horn-High Note.......................8W-15-4, 6
Horn-Low Note........................8W-15-4, 6
Ignition Switch.........................8W-15-12
Instrument Cluster....................8W-15-12, 14
Intake Air Heater Relay No. 1................8W-15-7
Intake Air Heater Relay No. 2................8W-15-7
Integrated Power Module..............8W-15-2, 4, 5, 8
Leak Detection Pump.....................8W-15-10
License Lamp-Left.......................8W-15-3
License Lamp-Right......................8W-15-3
Lift Pump Motor........................8W-15-11
Overdrive Switch.......................8W-15-13
Oxygen Sensor 1/1 Upstream................8W-15-10
Oxygen Sensor 1/2 Downstream.............8W-15-9, 10
Oxygen Sensor 2/1 Upstream................8W-15-10
Oxygen Sensor 2/2 Downstream.............8W-15-9, 10
Park/Turn Signal Lamp-Left Front............8W-15-2, 6
Park/Turn Signal Lamp-Right Front............8W-15-7
Power Mirror-Left.......................8W-15-21
Power Mirror-Right......................8W-15-22
Power Outlet..........................8W-15-17
Power Outlet-Console.....................8W-15-21
Power Seat Switch-Driver..................8W-15-21
Power Seat Switch-Passenger................8W-15-21
Power Steering Pressure Switch...............8W-15-9
Powertrain Control Module.............8W-15-8, 10, 11
Radio...............................8W-15-15
Red Brake Warning Indicator Switch..........8W-15-2, 6
Seat Belt Switch-Driver...................8W-15-20
Seat Heater Interface Module................8W-15-22
Sentry Key Immobilizer Module..............8W-15-12
Speed Control Servo.....................8W-15-2, 5
Tail/Stop/Turn Signal Lamp-Left...............8W-15-3
Tail/Stop/Turn Signal Lamp-Right..............8W-15-3
Tailgate Lamp Assembly....................8W-15-3
Trailer Tow Connector..................8W-15-3, 4, 6
Trailer Tow Connector-Add On.............8W-15-3, 4, 6
Transfer Case Control Module...............8W-15-17
Transfer Case Selector Switch................8W-15-13
Transmission Control Module.................8W-15-8
Underhood Lamp.......................8W-15-2, 6
Vacuum Pump..........................8W-15-7
Washer Pump Motor-Front.................8W-15-4, 7
Wiper Motor-Front....................8W-15-2, 4, 5
DR8W-15 GROUND DISTRIBUTION 8W - 15 - 1

8W-21 STARTING SYSTEM
Component Page
Auxiliary Battery.................... 8W-21-3
Battery.......................... 8W-21-2, 3
Clutch Interlock Brake Switch.......... 8W-21-4
Fuse 14.......................... 8W-21-2, 3
G103.............................. 8W-21-4
G104.............................. 8W-21-4
Ignition Switch.................... 8W-21-2, 3
Integrated Power Module.......... 8W-21-2, 3, 4Component Page
Powertrain Control Module.......... 8W-21-2, 4
Starter Motor..................... 8W-21-2, 3
Starter Motor Relay................ 8W-21-2, 3
Transfer Case Control Module.......... 8W-21-4
Transmission Range Sensor............ 8W-21-4
Transmission Solenoid/TRS Assembly.... 8W-21-4
DR8W-21 STARTING SYSTEM 8W - 21 - 1

8W-30 FUEL/IGNITION SYSTEM
Component PageA/C Compressor Clutch Relay...........8W-30-27, 36, 83
A/C Pressure Transducer.......8W-30-19, 20, 21, 48, 53, 70
Accelerator Pedal Position Sensor.............8W-30-55
Adjustable Pedal Motor....................8W-30-87
Adjustable Pedal Relay....................8W-30-87
Adjustable Pedal Switch...................8W-30-87
Ambient Temperature Sensor................8W-30-56
Auto Shut Down Relay..................8W-30-4, 31
Battery..............................8W-30-77
Battery Temperature Sensor............8W-30-28, 39, 81
Brake Lamp Switch.............8W-30-25, 35, 65, 82, 89
Camshaft Position Sensor.......8W-30-17, 18, 37, 55, 70, 71
Capacitor.........................8W-30-6, 11, 43
Clockspring..................8W-30-25, 35, 65, 84, 90
Clutch Interlock Brake Switch...............8W-30-32
Coil On Plug No. 1...................8W-30-8, 42, 61
Coil On Plug No. 2...................8W-30-7, 40, 60
Coil On Plug No. 3...................8W-30-8, 42, 61
Coil On Plug No. 4...................8W-30-7, 40, 60
Coil On Plug No. 5...................8W-30-6, 41, 61
Coil On Plug No. 6...................8W-30-6, 43, 60
Coil On Plug No. 7....................8W-30-41, 61
Coil On Plug No. 8....................8W-30-43, 60
Condenser Fan Relay...................8W-30-27, 36
Controller Antilock Brake...........8W-30-23, 33, 38, 82
Crankshaft Position Sensor.............8W-30-17, 18, 37
Data Link Connector..........8W-30-27, 36, 46, 80, 89, 91
Data Link Connector-Engine................8W-30-75
Electronic Throttle Control Module............8W-30-63
Engine Control Module......8W-30-67, 68, 69, 70, 71, 72, 73,
74, 75, 76, 77, 78, 79, 80, 81, 82,
83, 84, 90, 91
Engine Coolant Temperature
Sensor.................8W-30-19, 20, 21, 48, 64, 72
Engine Oil Pressure Switch......8W-30-19, 20, 21, 29, 78, 81
EVAP/Purge Solenoid...................8W-30-28, 39
Front Control Module.....................8W-30-87
Fuel Heater...........................8W-30-85
Fuel Heater Relay.......................8W-30-85
Fuel Injector No. 1...............8W-30-8, 9, 11, 42, 62
Fuel Injector No. 2...............8W-30-7, 9, 12, 40, 59
Fuel Injector No. 3...............8W-30-8, 9, 11, 42, 62
Fuel Injector No. 4...............8W-30-7, 9, 12, 40, 60
Fuel Injector No. 5...............8W-30-6, 9, 11, 41, 62
Fuel Injector No. 6...............8W-30-6, 9, 12, 43, 59
Fuel Injector No. 7................8W-30-9, 11, 41, 62
Fuel Injector No. 8................8W-30-9, 12, 43, 59
Fuel Injector No. 9.......................8W-30-11
Fuel Injector No. 10......................8W-30-12
Fuel Injector Pack No. 1...................8W-30-67
Fuel Injector Pack No. 2..............8W-30-67, 68, 69
Fuel Injector Pack No. 3...................8W-30-69
Fuel Pump Module................8W-30-3, 30, 79, 83
Fuel Pump Motor.......................8W-30-76
Fuel Pump Relay......................8W-30-3, 30
Fuel Rail Pressure Sensor..................8W-30-74
Fuse 2.............................8W-30-4, 31
Fuse 5............................8W-30-50, 88
Fuse 12.............................8W-30-85
Fuse 17............................8W-30-3, 30
Fuse 19.......................8W-30-2, 29, 77, 90
Fuse 36...........................8W-30-79, 87
Fuse 40.............................8W-30-87
Fuse 49............................8W-30-4, 31
Fuse 50...........................8W-30-28, 88Component PageFusible Link..........................8W-30-77
G103.........................8W-30-3, 25, 30, 35
G104.........................8W-30-3, 25, 30, 35
G105.............................8W-30-81, 86
G106...............................8W-30-85
G107.........8W-30-2, 16, 24, 29, 34, 40, 42, 45, 47, 50, 54
G114 ...............................8W-30-78
G117 ...............................8W-30-91
G120.............................8W-30-75, 85
G201..........................8W-30-23, 33, 91
G203...............................8W-30-87
Generator.......................8W-30-24, 34, 75
Idle Air Control Motor..................8W-30-27, 36
Ignition Coil...........................8W-30-9
Ignition Coil-Left.......................8W-30-10
Ignition Coil-Right.......................8W-30-10
Ignition Switch....................8W-30-23, 33, 46
Inlet Air Temperature/Pressure Sensor..........8W-30-73
Input Speed Sensor......................8W-30-49
Intake Air Heater Relay No. 1...............8W-30-81
Intake Air Heater Relay No. 2...............8W-30-81
Intake Air Temperature Sensor......8W-30-19, 20, 21, 48, 64
Intake Air Temperature/Manifold Absolute Pressure
Sensor............................8W-30-74
Integrated Power Module . . 8W-30-2, 3, 4, 26, 27, 29, 30, 31, 36,
50, 77, 79, 80, 83, 85, 86, 87, 88, 90
Knock Sensor..........................8W-30-22
Knock Sensor-Left.......................8W-30-57
Knock Sensor-Right......................8W-30-57
Leak Detection Pump..................8W-30-24, 34
Lift Pump Motor........................8W-30-75
Line Pressure Sensor.....................8W-30-44
Manifold Absolute Pressure
Sensor.................8W-30-19, 20, 21, 48, 55, 64
Output Speed Sensor................8W-30-26, 49, 88
Overdrive Switch...................8W-30-23, 33, 91
Oxygen Sensor 1/1 Upstream.......8W-30-13, 14, 15, 47, 54
Oxygen Sensor 1/2 Downstream.....8W-30-13, 14, 16, 45, 54
Oxygen Sensor 2/1 Upstream..............8W-30-15, 47
Oxygen Sensor 2/2 Downstream............8W-30-16, 45
Oxygen Sensor Downstream Relay...........8W-30-4, 31
Power Steering Pressure Switch............8W-30-24, 34
Powertrain Control Module . . 8W-30-2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
64, 65, 66, 77, 79, 82, 84, 85, 88, 89, 90, 91
PTCNo.1 ...........8W-30-2, 3, 27, 29, 30, 36, 80, 83, 86
PTO Switch.........................8W-30-23, 33
Speed Control Servo.................8W-30-25, 35, 89
Speed Control Switch-Left.............8W-30-65, 84, 90
Speed Control Switch-Right............8W-30-65, 84, 90
Starter Motor Relay......................8W-30-29
Throttle Position Sensor.................8W-30-22, 44
Throttle Position Switch...................8W-30-72
Transfer Case Control Module...............8W-30-65
Transmission Control Module.......8W-30-17, 23, 33, 38, 66
Transmission Control Relay............8W-30-26, 50, 88
Transmission Range Sensor..................8W-30-5
Transmission Solenoid Assembly.......8W-30-20, 21, 26, 88
Transmission Solenoid/TRS Assembly . . 8W-30-5, 32, 50, 51, 52
Vacuum Pump.........................8W-30-86
Vehicle Speed Sensor.....................8W-30-71
Vistronic Fan Drive......................8W-30-79
Water In Fuel Sensor...................8W-30-72, 76
DR8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 1

8W-31 TRANSMISSION CONTROL SYSTEM
Component Page
Automatic Day/Night Mirror........ 8W-31-7, 15
Brake Lamp Switch................. 8W-31-17
Clockspring........................ 8W-31-18
Clutch Interlock Brake Switch......... 8W-31-20
Data Link Connector....... 8W-31-5, 8, 17, 19, 25
Engine Control Module............ 8W-31-18, 19
Front Control Module.............. 8W-31-7, 10
Fuse 5.................... 8W-31-2, 10, 13, 16
Fuse 19........................... 8W-31-18
Fuse 28........................... 8W-31-23
Fuse 38...................... 8W-31-7, 10, 15
Fuse 43........................... 8W-31-20
Fuse 50........................... 8W-31-16
G107......................... 8W-31-2, 4, 10
G117............................. 8W-31-19
G201..................... 8W-31-9, 11, 19, 23
G203.......................... 8W-31-20, 25
Ignition Switch...................... 8W-31-5
Input Speed Sensor............... 8W-31-6, 14
Instrument Cluster............. 8W-31-5, 15, 23
Integrated Power Module . . . 8W-31-2, 7, 10, 13, 15,
16, 18, 20, 23
Line Pressure Sensor................. 8W-31-6
Output Speed Sensor........ 8W-31-6, 13, 14, 16Component Page
Overdrive Switch.............. 8W-31-9, 11, 19
Powertrain Control
Module . . 8W-31-3, 5, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19
Speed Control Servo................. 8W-31-17
Speed Control Switch-Left............ 8W-31-18
Speed Control Switch-Right........... 8W-31-18
Starter Motor Relay................. 8W-31-20
Tail/Stop/Turn Signal Lamp-Left........ 8W-31-7
Tail/Stop/Turn Signal Lamp-Right....... 8W-31-7
Throttle Position Sensor............... 8W-31-9
Transfer Case Control
Module........... 8W-31-20, 21, 22, 23, 24, 25
Transfer Case Mode Sensor........ 8W-31-21, 22
Transfer Case Selector Switch...... 8W-31-23, 24
Transfer Case Shift Motor............ 8W-31-25
Transmission Control
Module.............. 8W-31-2, 3, 4, 5, 6, 8, 9
Transmission Control Relay . . . 8W-31-2, 10, 13, 16
Transmission Range Sensor........... 8W-31-15
Transmission Solenoid Assembly.... 8W-31-13, 16
Transmission Solenoid/TRS
Assembly........ 8W-31-2, 3, 4, 6, 7, 10, 11, 12
DR8W-31 TRANSMISSION CONTROL SYSTEM 8W - 31 - 1

8W-40 INSTRUMENT CLUSTER
Component Page
A/C-Heater Control.................. 8W-40-11
Brake Transmission Shift Interlock
Solenoid........................ 8W-40-10
Center High Mounted Stop Lamp/Cargo
Lamp........................ 8W-40-5, 11
Clockspring..................... 8W-40-10, 13
Cylinder Lock Switch- Driver........... 8W-40-6
Cylinder Lock Switch- Passenger........ 8W-40-6
Data Link Connector................. 8W-40-5
Dome Lamp....................... 8W-40-11
Door Ajar Switch-Driver.............. 8W-40-12
Door Ajar Switch-Left Rear........... 8W-40-12
Door Ajar Switch-Passenger........... 8W-40-12
Door Ajar Switch-Right Rear.......... 8W-40-12
Door Lock Motor/Ajar Switch-Driver..... 8W-40-7
Door Lock Motor/Ajar Switch-Left Rear . . . 8W-40-7
Door Lock Motor/Ajar Switch-
Passenger...................... 8W-40-6, 8
Door Lock Motor/Ajar Switch-
Right Rear..................... 8W-40-7, 8
Door Lock Switch-Passenger........... 8W-40-6
Driver Door Module.................. 8W-40-8
Fog Lamp Relay..................... 8W-40-3
Fog Lamp-Left...................... 8W-40-3
Fog Lamp-Right..................... 8W-40-3
Fuse 18............................ 8W-40-5
Fuse 22............................ 8W-40-5Component Page
Fuse 41............................ 8W-40-3
G201........................... 8W-40-3, 11
G202............................. 8W-40-10
G301....................... 8W-40-2, 6, 7, 12
Glove Box Lamp And Switch.......... 8W-40-11
Headlamp Switch.................... 8W-40-3
Heated Seat Switch- Driver......... 8W-40-8, 11
Heated Seat Switch- Passenger...... 8W-40-8, 11
Horn Switch....................... 8W-40-13
Ignition Switch................... 8W-40-5, 13
Instrument Cluster........ 8W-40-2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13
Integrated Power Module........ 8W-40-2, 3, 5, 9
Multi-Function Switch................ 8W-40-4
Park Brake Switch.................. 8W-40-13
Powertrain Control Module........... 8W-40-13
PTCNo.2........................ 8W-40-2, 9
Radio.......................... 8W-40-9, 11
Remote Radio Switch-Left............ 8W-40-10
Remote Radio Switch-Right........... 8W-40-10
Seat Belt Switch-Driver............... 8W-40-2
Seat Belt Tensioner Reducer........... 8W-40-2
Transfer Case Selector Switch......... 8W-40-13
Transmission Control Module.......... 8W-40-13
Transmission Range Sensor............ 8W-40-5
DR8W-40 INSTRUMENT CLUSTER 8W - 40 - 1