INTERMITTENT AND POOR CONNECTIONS
Most intermittent electrical problems are caused
by faulty electrical connections or wiring. It is also
possible for a sticking component or relay to cause a
problem. Before condemning a component or wiring
assembly, check the following items.
²Connectors are fully seated
²Spread terminals, or terminal push out
²Terminals in the wiring assembly are fully
seated into the connector/component and locked into
position
²Dirt or corrosion on the terminals. Any amount
of corrosion or dirt could cause an intermittent prob-
lem
²Damaged connector/component casing exposing
the item to dirt or moisture
²Wire insulation that has rubbed through causing
a short to ground
²Some or all of the wiring strands broken inside
of the insulation
²Wiring broken inside of the insulation
TROUBLESHOOTING WIRING PROBLEMS
When troubleshooting wiring problems there are
six steps which can aid in the procedure. The steps
are listed and explained below. Always check for non-
factory items added to the vehicle before doing any
diagnosis. If the vehicle is equipped with these items,
disconnect them to verify these add-on items are not
the cause of the problem.
(1) Verify the problem.
(2) Verify any related symptoms. Do this by per-
forming operational checks on components that are
in the same circuit. Refer to the wiring diagrams.
(3) Analyze the symptoms. Use the wiring dia-
grams to determine what the circuit is doing, where
the problem most likely is occurring and where the
diagnosis will continue.
(4) Isolate the problem area.
(5) Repair the problem area.(6) Verify the proper operation. For this step,
check for proper operation of all items on the
repaired circuit. Refer to the wiring diagrams.
STANDARD PROCEDURE - TESTING FOR
VOLTAGE POTENTIAL
(1) Connect the ground lead of a voltmeter to a
known good ground (Fig. 5).
(2) Connect the other lead of the voltmeter to the
selected test point. The vehicle ignition may need to
be turned ON to check voltage. Refer to the appropri-
ate test procedure.
STANDARD PROCEDURE - TESTING FOR
CONTINUITY
(1) Remove the fuse for the circuit being checked
or, disconnect the battery.
(2) Connect one lead of the ohmmeter to one side
of the circuit being tested (Fig. 6)
(3) Connect the other lead to the other end of the
circuit being tested. Low or no resistance means good
continuity.
STANDARD PROCEDURE - TESTING FOR A
SHORT TO GROUND
(1) Remove the fuse and disconnect all items
involved with the fuse.
(2) Connect a test light or a voltmeter across the
terminals of the fuse.
(3) Starting at the fuse block, wiggle the wiring
harness about six to eight inches apart and watch
the voltmeter/test lamp.
Fig. 4 PROBING TOOL
1 - SPECIAL TOOL 6801
2 - PROBING END
Fig. 5 Testing for Voltage Potential
8Wa - 01 - 6 8W-01 WIRING DIAGRAM INFORMATIONRG
WIRING DIAGRAM INFORMATION (Continued)
(4) If the voltmeter registers voltage or the test
lamp glows, there is a short to ground in that gen-
eral area of the wiring harness.
STANDARD PROCEDURE - TESTING FOR
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 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. 7).
(2) Connect the other lead of the voltmeter to the
other side of the switch or component.
(3) Operate the item.
(4) The voltmeter will show the difference in volt-
age between the two points.
Fig. 6 Testing for Continuity
1 - FUSE REMOVED FROM CIRCUIT
Fig. 7 Testing for Voltage Drop
RG8W-01 WIRING DIAGRAM INFORMATION8Wa-01-7
WIRING DIAGRAM INFORMATION (Continued)
8W-02 COMPONENT INDEX
Component Page
A/C Compressor Clutch Relay........... 8Wa-42
A/C Compressor Clutch................ 8Wa-42
A/C-Heater Control................... 8Wa-42
A/C Pressure Sensor.................. 8Wa-42
Accelerator Pedal Position Sensor........ 8Wa-30
Accessory Relay...................... 8Wa-10
Airbags............................. 8Wa-43
Ambient Temp Sensor................. 8Wa-49
Antenna............................ 8Wa-47
ATC Remote Sensor................... 8Wa-42
Auto Shut Down Relay................. 8Wa-30
Auto Temp Control.................... 8Wa-42
Automatic Day/Night Mirror............ 8Wa-49
Autostick Switch..................... 8Wa-31
Back-Up Lamp Switch................. 8Wa-51
Battery Temperature Sensor............ 8Wa-20
Battery............................. 8Wa-20
Blend Door Actuators.................. 8Wa-42
Blower Motor Resistor................. 8Wa-42
Body Control Module.................. 8Wa-45
Boost Pressure Sensor................. 8Wa-30
B-Pillar Switches..................... 8Wa-61
Brake Fluid Level Switch............... 8Wa-40
Brake Lamp Switch................... 8Wa-51
Brake Transmission Shift Interlock
Solenoid.......................... 8Wa-31
Cabin Heater Assist................... 8Wa-30
Camshaft Position Sensor.............. 8Wa-30
CD Changer......................... 8Wa-47
Center High Mounted Stop Lamp........ 8Wa-51
Cinch/Release Motors.................. 8Wa-61
Clockspring................. 8Wa-33, 41, 43, 47
Clutch Pedal Interlock Switch Jumper..... 8Wa-10
Clutch Pedal Interlock Switch........... 8Wa-10
Clutch Pedal Upstop Switch............. 8Wa-30
Combination Relays................... 8Wa-54
Controller Antilock Brake.............. 8Wa-35
Crank Case Ventilation Heater.......... 8Wa-30
Crankshaft Position Sensor............. 8Wa-30
Cylinder Lock Switches................ 8Wa-39
Data Link Connector.................. 8Wa-18
Defogger Relay....................... 8Wa-48
Diagnostic Junction Port............... 8Wa-18
Dome Lamps........................ 8Wa-44
Door Ajar Switches.................... 8Wa-39
Door Courtesy Lamps.................. 8Wa-44
Door Lock Motor/Ajar Switches.......... 8Wa-61
Door Lock Switches................... 8Wa-61
Dosing Pump........................ 8Wa-30
Driver Heated Seat Module............. 8Wa-63
ECM/PCM Relay..................... 8Wa-30
EGR Solenoid........................ 8Wa-30Component Page
Electric Wiper De-Icer................. 8Wa-48
Engine Control Module................ 8Wa-30
Engine Coolant Temp Sensor............ 8Wa-30
Engine Oil Pressure Sensor............. 8Wa-30
Engine Oil Pressure Switch............. 8Wa-30
Engine Oil Temperature Sensor.......... 8Wa-30
EVAP/Purge Solenoid.................. 8Wa-30
Evaporator Temperature Sensor......... 8Wa-42
Floor Console Lamp................... 8Wa-44
Floor Console Power Outlet............. 8Wa-41
Fog Lamps.......................... 8Wa-50
Front Blower Module.................. 8Wa-42
Front Blower Motor Relay.............. 8Wa-42
Front Blower Motor................... 8Wa-42
Front Cigar Lighter................... 8Wa-41
Front Control Module.................. 8Wa-10
Front Fog Lamp Relay................. 8Wa-50
Front Intrusion Sensor................. 8Wa-39
Front Reading Lamps/Switch............ 8Wa-44
Front Washer Pump Motor.............. 8Wa-53
Front Wiper Hi/Low Relay.............. 8Wa-53
Front Wiper On/Off Relay.............. 8Wa-53
Fuel Heater Relay.................... 8Wa-10
Fuel Heater......................... 8Wa-30
Fuel Injectors........................ 8Wa-30
Fuel Pressure Sensor.................. 8Wa-30
Fuel Pressure Solenoid................. 8Wa-30
Fuel Pump Module.................... 8Wa-30
Fuel Pump Relay..................... 8Wa-30
Full Open Switches................... 8Wa-61
Fuselink............................ 8Wa-10
Fuses (IPM)......................... 8Wa-10
Generator........................... 8Wa-20
Glove Box Lamp...................... 8Wa-44
Glow Plug Relay...................... 8Wa-30
Glow Plugs.......................... 8Wa-30
Grounds............................ 8Wa-15
Halo Lamp.......................... 8Wa-44
Headlamp Leveling Motors............. 8Wa-50
Headlamp Switch..................... 8Wa-50
Headlamp Washer Pump Motor.......... 8Wa-53
Headlamp Washer Relay............... 8Wa-53
Headlamps.......................... 8Wa-50
Heated Seat Backs.................... 8Wa-63
Heated Seat Cushions................. 8Wa-63
High Beam Lamps.................... 8Wa-50
Hood Ajar Switch..................... 8Wa-39
Horn Relay.......................... 8Wa-41
Horn Switch......................... 8Wa-41
Horns.............................. 8Wa-41
Idle Air Control Motor................. 8Wa-30
Ignition Coil......................... 8Wa-30
RG8W-02 COMPONENT INDEX8Wa-02-1
8W-10 POWER DISTRIBUTION
Component PageA/C Compressor Clutch..................8Wa-10-19, 20, 38, 40
A/C Compressor Clutch Relay.............8Wa-10-19, 20, 37, 38, 40
Accessory Relay.......................8Wa-10-15, 26, 57
Ambient Temp Sensor........................8Wa-10-54
Auto Shut Down Relay......................8Wa-10-19, 34
Auto Temp Control.........................8Wa-10-33
Back-Up Lamp Switch........................8Wa-10-58
Battery........................8Wa-10-12, 13, 14, 34, 40
Blower Motor Resistor......................8Wa-10-17, 31
Body Control Module......8Wa-10-21, 33, 38, 41, 42, 44, 46, 47, 48, 49, 61
Brake Fluid Level Switch......................8Wa-10-57
Brake Lamp Switch.....................8Wa-10-21, 44, 59
Brake Transmission Shift Interlock Solenoid.............8Wa-10-55
Cabin Heater Assist.....................8Wa-10-20, 36, 52
Camshaft Position Sensor......................8Wa-10-37
Center High Mounted Stop Lamp..................8Wa-10-59
Clockspring.............................8Wa-10-53
Clutch Pedal Interlock Switch Jumper........8Wa-10-16, 30, 46, 47, 53
Clutch Pedal Interlock Switch............8Wa-10-16, 30, 46, 47, 53
Controller Antilock Brake...........8Wa-10-16, 21, 30, 42, 48, 54, 59
Crank Case Ventilation Heater...................8Wa-10-41
Data Link Connector.......................8Wa-10-29, 61
Defogger Relay......................8Wa-10-17, 18, 32, 56
Diagnostic Junction Port.......................8Wa-10-54
Driver Door Lock Switch.....................8Wa-10-28, 29
Driver Heated Seat Module.....................8Wa-10-42
Driver Power Seat Switch......................8Wa-10-42
Driver Power Window Switch....................8Wa-10-29
ECM/PCM Relay.........................8Wa-10-20, 36
EGR Solenoid..........................8Wa-10-37, 39
Electric Wiper De-Icer........................8Wa-10-28
Engine Control Module........8Wa-10-16, 20, 30, 36, 37, 40, 41, 58, 59
Floor Console Lamp.........................8Wa-10-27
Floor Console Power Outlet...................8Wa-10-27, 29
Front Blower Module......................8Wa-10-17, 31
Front Blower Motor Relay................8Wa-10-16, 17, 31, 56
Front Cigar Lighter.......................8Wa-10-15, 27
Front Control Module . . . 8Wa-10-14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
26, 29, 30, 31, 32, 38, 40, 45, 46, 47, 50, 51, 52, 53, 54. 55, 56, 57, 58, 59, 61
Front Fog Lamp Relay....................8Wa-10-14, 22, 56
Front Washer Pump Motor..................8Wa-10-15, 26, 61
Front Wiper Hi/Low Relay..................8Wa-10-15, 25, 57
Front Wiper On/Off Relay..................8Wa-10-15, 25, 52
Fuel Heater.............................8Wa-10-41
Fuel Heater Relay......................8Wa-10-20, 40, 57
Fuel Injector No. 1..........................8Wa-10-35
Fuel Injector No. 2..........................8Wa-10-35
Fuel Injector No. 3..........................8Wa-10-35
Fuel Injector No. 4..........................8Wa-10-35
Fuel Injector No. 5..........................8Wa-10-35
Fuel Injector No. 6..........................8Wa-10-35
Fuel Pressure Solenoid.......................8Wa-10-37
Fuel Pump Module........................8Wa-10-19, 38
Fuel Pump Relay.......................8Wa-10-19, 38, 57
Fuse 1 (IPM).........................8Wa-10-14, 15, 22
Fuse 2 (IPM) (Diesel).....................8Wa-10-14, 10-24
Fuse 2 (IPM) (Gas)......................8Wa-10-14, 10-23
Fuse 3 (IPM).........................8Wa-10-14, 23, 24
Fuse 4 (IPM).......................8Wa-10-14, 15, 16, 25
Fuse 5 (IPM)...........................8Wa-10-15, 26
Fuse 6 (IPM)...........................8Wa-10-15, 26
Fuse 8 (IPM)...........................8Wa-10-16, 29
Fuse 9 (IPM).........................8Wa-10-16, 17, 30
Fuse 10 (IPM)..........................8Wa-10-17, 31
Fuse 11 (IPM)..........................8Wa-10-15, 26
Fuse 12 (IPM)..........................8Wa-10-17, 31
Fuse 13 (IPM)..........................8Wa-10-18, 32
Fuse 14 (IPM)....................8Wa-10-18, 19, 20, 32, 52
Fuse 15 (IPM) (Diesel)......................8Wa-10-20, 36
Fuse 15 (IPM) (Gas).....................8Wa-10-18, 19, 34
Fuse 16 (IPM) (Diesel)......................8Wa-10-20, 36
Fuse 16 (IPM) (Gas).......................8Wa-10-19, 34
Fuse 17 (IPM) (Diesel)......................8Wa-10-20, 40
Fuse 17 (IPM) (Gas).......................8Wa-10-19, 38
Fuse 18 (IPM)....................8Wa-10-19, 20, 21, 38, 40
Fuse 19 (IPM)......................8Wa-10-19, 20, 21, 42
Fuse 20 (IPM)..........................8Wa-10-21, 42
Fuse 21 (IPM)..........................8Wa-10-21, 42
Fuse 22 (IPM)..........................8Wa-10-21, 42
Fuse 23 (IPM)........................8Wa-10-21, 46, 47
Fuse 24 (IPM)............................8Wa-10-21
Fuse 24 (IPM)............................8Wa-10-44
Fuse 26 (IPM)..........................8Wa-10-21, 44
Fuse 27 (IPM)..........................8Wa-10-21, 44
Fuse 28 (IPM)..........................8Wa-10-15, 26
Fuse 30 (IPM)..........................8Wa-10-21, 45
Fuse 31 (IPM)..........................8Wa-10-21, 45
Fuse 32 (IPM)..........................8Wa-10-21, 45
Fuse 33 (IPM)............................8Wa-10-15
Fuse 33 (IPM)............................8Wa-10-26
Fuselink.............................8Wa-10-12, 13
G100................................8Wa-10-48
G101...............................8Wa-10-34, 40
G103................................8Wa-10-61
G300................................8Wa-10-50
G300................................8Wa-10-51
Generator........................8Wa-10-12, 13, 35, 37
Glow Plug Relay.........................8Wa-10-12, 37
Headlamp Switch........................8Wa-10-24, 55Component PageHeadlamp Washer Pump Motor.................8Wa-10-21, 45
Headlamp Washer Relay...................8Wa-10-21, 45, 56
High Note Horn...........................8Wa-10-29
Horn Relay..........................8Wa-10-16, 29, 52
Ignition Coil.............................8Wa-10-35
Ignition Switch............8Wa-10-16, 21, 30, 38, 39, 41, 46, 47, 53
Instrument Cluster.......................8Wa-10-21, 44
Intelligent Power Module . . 8Wa-10-2, 10-3, 10-4, 10-12, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 61
Leak Detection Pump........................8Wa-10-39
Left B-Pillar Switch.........................8Wa-10-28
Left Combination Relay.......................8Wa-10-60
Left Fog Lamp..........................8Wa-10-14, 22
Left Front Park/ Turn Signal Lamp............8Wa-10-14, 23, 49, 58
Left Headlamp............................8Wa-10-50
Left Headlamp Leveling Motor................8Wa-10-24, 55, 58
Left High Beam Lamp........................8Wa-10-51
Left Low Beam Lamp........................8Wa-10-51
Left Park Lamp.........................8Wa-10-24, 58
Left Power Mirror..........................8Wa-10-32
Left Rear Lamp Assembly..............8Wa-10-23, 24, 58, 59, 60
Left Repeater Lamp.........................8Wa-10-44
Left Side Impact Airbag Control Module...............8Wa-10-55
Left Sliding Door Control Module..................8Wa-10-45
Left Stop/ Turn Signal Relay.....................8Wa-10-60
Left Turn Signal Lamp.......................8Wa-10-49
License Lamp........................8Wa-10-23, 24, 58
Lift Pump Motor.........................8Wa-10-20, 36
Lift Pump Relay.........................8Wa-10-20, 36
Low Note Horn...........................8Wa-10-29
Mass Air Flow Sensor........................8Wa-10-37
Memory Seat/ Mirror Module....................8Wa-10-42
Message Center...........................8Wa-10-44
Name Brand Speaker Relay.................8Wa-10-18, 32, 52
Occupant Restraint Controller..................8Wa-10-56, 61
Overhead Console..........................8Wa-10-33
Oxygen Sensor 1/1 Upstream....................8Wa-10-35
Oxygen Sensor 1/2 Downstream...................8Wa-10-35
Park Lamp Relay.....................8Wa-10-14, 23, 24, 52
Park/ Neutral Position Switch....................8Wa-10-58
Passenger Door Lock Switch...................8Wa-10-26, 28
Passenger Folding Mirror Relay.............8Wa-10-19, 20, 38, 40
Passenger Heated Seat Module...................8Wa-10-43
Passenger Power Seat Switch....................8Wa-10-43
Passenger Power Window Switch..................8Wa-10-26
Power Liftgate Module......................8Wa-10-21, 45
Power Mirror Switch...................8Wa-10-19, 20, 39, 40
Power Outlet............................8Wa-10-29
Power Seat Circuit Breaker...................8Wa-10-21, 42
Power Window Circuit Breaker.................8Wa-10-15, 26
Powertrain Control Module........8Wa-10-16, 19, 30, 34, 35, 38, 39, 48
PTC4 ..............................8Wa-10-18, 32
Ptc7.............................8Wa-10-15, 16, 29
Radiator Fan Relay.....................8Wa-10-21, 44, 48
Radiator Fan Relay No. 1....................8Wa-10-12, 37
Radiator Fan Relay No. 2....................8Wa-10-37, 44
Radiator Fan Relay No. 3....................8Wa-10-21, 37
Radio..............................8Wa-10-27, 33
Radio Choke...........................8Wa-10-18, 32
Rear A/C-Heater Unit......................8Wa-10-17, 31
Rear Blower Motor Power Module..................8Wa-10-31
Rear Blower Motor Relay.................8Wa-10-17, 18, 31, 56
Rear Power Outlet......................8Wa-10-15, 26, 27
Rear Washer Pump Motor..................8Wa-10-15, 26, 61
Rear Window Defogger Grid...................8Wa-10-18, 32
Rear Wiper Motor..........................8Wa-10-28
Remote Keyless Entry Module....................8Wa-10-33
Right B-Pillar Switch........................8Wa-10-28
Right Combination Relay......................8Wa-10-60
Right Fog Lamp.........................8Wa-10-14, 22
Right Front Park/ Turn Signal Lamp...........8Wa-10-14, 23, 49, 53
Right Headlamp...........................8Wa-10-50
Right Headlamp Leveling Motor...............8Wa-10-24, 53, 55
Right High Beam Lamp.......................8Wa-10-51
Right Low Beam Lamp.......................8Wa-10-51
Right Park Lamp........................8Wa-10-24, 53
Right Power Mirror.........................8Wa-10-32
Right Rear Lamp Assembly................8Wa-10-14, 23, 24, 59
Right Repeater Lamp........................8Wa-10-44
Right Side Impact Airbag Control Module..............8Wa-10-55
Right Sliding Door Control Module.................8Wa-10-45
Right Stop/ Turn Signal Relay....................8Wa-10-60
Right Turn Signal Lamp.......................8Wa-10-49
Sentry Key Immobilizer Module...........8Wa-10-33, 39, 41, 46, 47
Solenoid/ Pressure Switch Assy...................8Wa-10-34
Starter Motor.......................8Wa-10-12, 13, 16, 30
Starter Motor Relay...................8Wa-10-16, 30, 46, 47
Thatcham Alarm Module.................8Wa-10-39, 41, 47, 61
Torque Converter Clutch Solenoid..................8Wa-10-39
Trailer Tow Connector......................8Wa-10-23, 58
Transmission Control Module...........8Wa-10-16, 19, 30, 34, 54, 55
Transmission Control Relay...................8Wa-10-19, 34
Transmission Range Sensor.....................8Wa-10-58
TXV Solenoid............................8Wa-10-31
Vehicle Speed Sensor........................8Wa-10-36
Washer Fluid Level Switch.....................8Wa-10-53
Wiper Module........................8Wa-10-15, 25, 52
RG8W-10 POWER DISTRIBUTION8Wa-10-1
8W-20 CHARGING SYSTEM
Component Page
Auto Shut Down Relay............... 8Wa-20-2
Battery......................... 8Wa-20-2, 3
Battery Temperature Sensor........... 8Wa-20-3
ECM/PCM Relay.................... 8Wa-20-3
Engine Control Module............... 8Wa-20-3
Fuse 16 (IPM) (Diesel)............... 8Wa-20-3
Fuse 16 (IPM) (Gas)................. 8Wa-20-2
Fuse 17 (IPM) (Gas)................. 8Wa-20-2Component Page
Fuselink........................ 8Wa-20-2, 3
G100........................... 8Wa-20-2, 3
G101........................... 8Wa-20-2, 3
Generator....................... 8Wa-20-2, 3
Intelligent Power Module........... 8Wa-20-2, 3
Powertrain Control Module............ 8Wa-20-2
Starter Motor.................... 8Wa-20-2, 3
RG8W-20 CHARGING SYSTEM8Wa-20-1
8W-21 STARTING SYSTEM
Component Page
Battery......................... 8Wa-21-2, 3
Clutch Pedal Interlock Switch
Jumper....................... 8Wa-21-2, 3
Clutch Pedal Interlock Switch........ 8Wa-21-2, 3
Engine Control Module............... 8Wa-21-3
Front Control Module................ 8Wa-21-2
Fuse 9 (IPM)..................... 8Wa-21-2, 3
Fuselink........................ 8Wa-21-2, 3Component Page
G101........................... 8Wa-21-2, 3
Generator....................... 8Wa-21-2, 3
Ignition Switch................... 8Wa-21-2, 3
Intelligent Power Module........... 8Wa-21-2, 3
Powertrain Control Module............ 8Wa-21-2
Starter Motor.................... 8Wa-21-2, 3
Starter Motor Relay............... 8Wa-21-2, 3
RG8W-21 STARTING SYSTEM8Wa-21-1
8W-30 FUEL/IGNITION SYSTEM
Component Page
A/C Compressor Clutch.............. 8Wa-30-17
A/C Compressor Clutch Relay....... 8Wa-30-3, 17
A/C Pressure Sensor........... 8Wa-30-9, 15, 24
Accelerator Pedal Position Sensor...... 8Wa-30-31
Auto Shut Down Relay.... 8Wa-30-2, 5, 7, 8, 12, 13
Battery..................... 8Wa-30-2, 17, 25
Battery Temperature Sensor.......... 8Wa-30-24
Body Control Module.............. 8Wa-30-4, 18
Boost Pressure Sensor............... 8Wa-30-24
Brake Lamp Switch............ 8Wa-30-6, 20, 30
Cabin Heater Assist................ 8Wa-30-21
Camshaft Position Sensor....... 8Wa-30-7, 13, 23
Clockspring..................... 8Wa-30-3, 22
Clutch Departure Switch............. 8Wa-30-29
Crank Case Ventilation Heater........ 8Wa-30-18
Crankshaft Position Sensor...... 8Wa-30-7, 13, 23
Data Link Connector.............. 8Wa-30-4, 21
Diagnostic Junction Port........... 8Wa-30-4, 22
Dosing Pump...................... 8Wa-30-21
ECM/PCM Relay....... 8Wa-30-17, 19, 23, 25, 27
EGR Solenoid................... 8Wa-30-5, 27
Engine Control Module..... 8Wa-30-17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
Engine Coolant Temp Sensor..... 8Wa-30-9, 15, 24
Engine Oil Pressure Sensor........... 8Wa-30-20
Engine Oil Pressure Switch........... 8Wa-30-6
Engine Oil Temperature Sensor....... 8Wa-30-23
EVAP/Purge Solenoid................ 8Wa-30-3
Front Control Module........ 8Wa-30-3, 4, 21, 29
Fuel Heater....................... 8Wa-30-28
Fuel Heater Relay............... 8Wa-30-18, 28
Fuel Injector No. 1............. 8Wa-30-8, 12, 26
Fuel Injector No. 2............. 8Wa-30-8, 12, 26
Fuel Injector No. 3............. 8Wa-30-8, 12, 26
Fuel Injector No. 4............. 8Wa-30-8, 12, 26
Fuel Injector No. 5................. 8Wa-30-12
Fuel Injector No. 6................. 8Wa-30-12
Fuel Pressure Sensor............... 8Wa-30-30
Fuel Pressure Solenoid.............. 8Wa-30-19
Fuel Pump Module............... 8Wa-30-4, 18
Fuel Pump Relay................... 8Wa-30-4
Fuse 15 (IPM) (Diesel)............ 8Wa-30-21, 28
Fuse 16 (IPM (Diesel).... 8Wa-30-17, 19, 23, 25, 27
Fuse 16 (IPM) (Gas)...... 8Wa-30-2, 5, 7, 8, 12, 13
Fuse 17 (IPM) (Diesel)............ 8Wa-30-18, 28
Fuse 17 (IPM) (Gas)............... 8Wa-30-2, 4
Fuse 18 (IPM)..................... 8Wa-30-17Component Page
Fuse 26 (IPM)..................... 8Wa-30-30
Fuselink......................... 8Wa-30-25
G100.......................... 8Wa-30-2, 17
G101.......................... 8Wa-30-2, 17
G103.................. 8Wa-30-5, 6, 17, 18, 21
G200............................ 8Wa-30-22
G300....................... 8Wa-30-6, 20, 29
G302....................... 8Wa-30-4, 18, 28
Generator...................... 8Wa-30-2, 18
Glow Plug No. 1................... 8Wa-30-25
Glow Plug No. 2................... 8Wa-30-25
Glow Plug No. 3................... 8Wa-30-25
Glow Plug No. 4................... 8Wa-30-25
Glow Plug Relay................... 8Wa-30-25
Idle Air Control Motor............ 8Wa-30-11, 14
Ignition Coil.................... 8Wa-30-7, 13
Ignition Switch.................... 8Wa-30-16
Inlet Air Temperature Sensor...... 8Wa-30-10, 14
Intelligent Power Module . . . 8Wa-30-2, 3, 4, 5, 7, 8,
12, 13, 16, 17, 18, 19, 21, 23, 25, 27, 28, 29, 30
Knock Sensor................... 8Wa-30-9, 15
Leak Detection Pump............... 8Wa-30-16
Left Speed Control Switch.......... 8Wa-30-3, 22
Lift Pump Motor................... 8Wa-30-28
Lift Pump Relay................... 8Wa-30-28
Manifold Absolute Pressure Sensor . . . 8Wa-30-9, 15
Mass Air Flow Sensor............... 8Wa-30-19
Oxygen Sensor 1/1 Upstream.......... 8Wa-30-5
Oxygen Sensor 1/2 Downstream........ 8Wa-30-5
Park/Neutral Position Switch......... 8Wa-30-11
Powertrain Control Module . . . 8Wa-30-2, 3, 4, 5, 6,
7, 8, 9, 10, 11, 12, 13, 14, 15, 16
Radiator Fan Relay.................. 8Wa-30-3
Radiator Fan Relay No. 1............ 8Wa-30-30
Radiator Fan Relay No. 2............ 8Wa-30-30
Radiator Fan Relay No. 3............ 8Wa-30-30
Right Speed Control Switch......... 8Wa-30-3, 22
Speed Control Servo................. 8Wa-30-6
Starter Motor Relay.............. 8Wa-30-4, 18
Throttle Position Sensor.......... 8Wa-30-10, 14
Torque Converter Clutch Solenoid...... 8Wa-30-16
Transmission Control
Module................. 8Wa-30-7, 10, 11, 14
Transmission Range Sensor........ 8Wa-30-11, 14
Vehicle Speed Sensor........... 8Wa-30-7, 11, 27
Water In Fuel Sensor............... 8Wa-30-29
RG8W-30 FUEL/IGNITION SYSTEM8Wa-30-1
8W-31 TRANSMISSION CONTROL SYSTEM
Component Page
Autostick Switch.................... 8Wa-31-5
Battery........................... 8Wa-31-2
Brake Transmission Shift Interlock
Solenoid........................ 8Wa-31-4
Crankshaft Position Sensor............ 8Wa-31-3
Data Link Connector................. 8Wa-31-8
Front Control Module.......... 8Wa-31-4, 5, 8, 9
Fuse 15 (IPM) (Gas)............. 8Wa-31-2, 6, 7
G100............................. 8Wa-31-2
G101............................. 8Wa-31-2
G103........................... 8Wa-31-5, 9
G200............................. 8Wa-31-5
Ignition Switch..................... 8Wa-31-9Component Page
Intelligent Power Module . . 8Wa-31-2, 4, 5, 6, 7, 8, 9
Park/Neutral Position Switch.......... 8Wa-31-9
Powertrain Control Module...... 8Wa-31-3, 4, 8, 9
Solenoid/Pressure Switch Assy....... 8Wa-31-6, 7
Speed Sensor- Input................. 8Wa-31-5
Speed Sensor- Output................ 8Wa-31-5
Throttle Position Sensor.............. 8Wa-31-3
Torque Converter Clutch Solenoid....... 8Wa-31-9
Transmission Control Module.... 8Wa-31-2, 3, 4, 5,
6, 7, 8
Transmission Control Relay....... 8Wa-31-2, 6, 7
Transmission Range Sensor......... 8Wa-31-4, 5
RG8W-31 TRANSMISSION CONTROL SYSTEM8Wa-31-1