trailer DODGE RAM 2003 Service User Guide

DESCRIPTION - CIRCUIT FUNCTIONS
All circuits in the diagrams use an alpha/numeric
code to identify the wire and it's function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second-
ary codes that may apply to some models.
CIRCUIT IDENTIFICATION CODE CHART
CIRCUIT FUNCTION
A BATTERY FEED
B BRAKE CONTROLS
C CLIMATE CONTROLS
D DIAGNOSTIC CIRCUITS
E DIMMING ILLUMINATION
CIRCUITS
F FUSED CIRCUITS
G MONITORING CIRCUITS
(GAUGES)
H OPEN
I NOT USED
J OPEN
K POWERTRAIN CONTROL
MODULE
L EXTERIOR LIGHTING
M INTERIOR LIGHTING
N NOT USED
O NOT USED
P POWER OPTION (BATTERY
FEED)
Q POWER OPTIONS (IGNITION
FEED)
R PASSIVE RESTRAINT
S SUSPENSION/STEERING
T TRANSMISSION/TRANSAXLE/
TRANSFER CASE
U OPEN
V SPEED CONTROL, WIPER/
WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
DESCRIPTION - SECTION IDENTIFICATION AND
INFORMATION
The wiring diagrams are grouped into individual
sections. If a component is most likely found in a par-
ticular group, it will be shown complete (all wires,
connectors, and pins) within that group. For exam-
ple, the Auto Shutdown Relay is most likely to be
found in Group 30, so it is shown there complete. It
can, however, be shown partially in another group if
it contains some associated wiring.
Splice diagrams in Section 8W-70 show the entire
splice and provide references to other sections the
splices serves. Section 8W-70 only contains splice dia-
grams that are not shown in their entirety some-
where else in the wiring diagrams.
Section 8W-80 shows each connector and the cir-
cuits involved with that connector. The connectors
are identified using the name/number on the dia-
gram pages.
WIRING SECTION CHART
GROUP TOPIC
8W-01 thru
8W-09General information and Diagram
Overview
8W-10 thru
8W-19Main Sources of Power and
Vehicle Grounding
8W-20 thru
8W-29Starting and Charging
8W-30 thru
8W-39Powertrain/Drivetrain Systems
8W-40 thru
8W-49Body Electrical items and A/C
8W-50 thru
8W-59Exterior Lighting, Wipers and
Trailer Tow
8W-60 thru
8W-69Power Accessories
8W-70 Splice Information
8W-80 Connector Pin Outs
8W-91 Connector, Ground and Splice
Locations
8W - 01 - 6 8W-01 WIRING DIAGRAM INFORMATIONDR
WIRING DIAGRAM INFORMATION (Continued)

Component Page
Overdrive Switch...................... 8W-31
Overhead Map/Reading Lamp............ 8W-44
Oxygen Sensors....................... 8W-30
Oxygen Sensor Downstream Relay........ 8W-30
Park Brake Switch.................... 8W-40
Park Lamp Relay................... 8W-50, 52
Park/Turn Signal Lamps............. 8W-50, 52
Passenger Airbag On/Off Switch.......... 8W-43
Blend Door Actuators.................. 8W-42
Passenger Lumbar Switch............... 8W-63
Power Mirrors........................ 8W-62
Power Outlet......................... 8W-41
Power Outlet-Console.................. 8W-41
Power Seat Motors.................... 8W-63
Power Seat Switches................... 8W-63
Power Steering Pressure Switch.......... 8W-30
Power Window Circuit Breaker........... 8W-10
Power Window Motors.................. 8W-60
Power Window Switches................ 8W-60
Powertrain Control Module.............. 8W-30
PTCs............................... 8W-10
PTO Switch.......................... 8W-30
Radio............................... 8W-47
Recirculation Door Actuator............. 8W-42
Red Brake Warning Indicator Switch . . . 8W-34, 35
Remote Radio Switches................. 8W-47
Splices.............................. 8W-70
Seat Belt Pretensioners................. 8W-43
Seat Belt Switch-Driver................ 8W-40
Seat Belt Tensioner Reducer............. 8W-40
Seat Heater Interface Module............ 8W-63
Sentry Key Immobilizer Module.......... 8W-39
Spare Relay.......................... 8W-10
Speakers............................ 8W-47Component Page
Speed Control Servo................... 8W-33
Speed Control Switches................. 8W-33
Starter Motor Relay................... 8W-21
Starter Motor.................... 8W-21, 21-3
Tail/Stop Lamps...................... 8W-52
Tail/Stop/Turn Signal Lamps.......... 8W-51, 52
Tail/Turn Lamps...................... 8W-52
Tailgate Lamp Assembly................ 8W-51
Throttle Position Sensor................ 8W-30
Throttle Position Switch................ 8W-30
Trailer Tow Connector.................. 8W-54
Trailer Tow Connector-Add On........... 8W-54
Trailer Tow Left Turn Relay............. 8W-54
Trailer Tow Right Turn Relay............ 8W-54
Transfer Case Control Module............ 8W-31
Transfer Case Mode Sensor.............. 8W-31
Transfer Case Selector Switch............ 8W-31
Transfer Case Shift Motor............... 8W-31
Transmission Control Module............ 8W-31
Transmission Control Relay............. 8W-31
Transmission Range Sensor.............. 8W-31
Transmission Solenoid Assembly.......... 8W-31
Transmission Solenoid/TRS Assembly...... 8W-31
Underhood Lamp...................... 8W-44
Vacuum Pump........................ 8W-30
Vehicle Speed Sensor................... 8W-30
Vistronic Fan Drive.................... 8W-30
Washer Fluid Level Switch.............. 8W-53
Washer Pump Motor-Front.............. 8W-53
Water In Fuel Sensor.................. 8W-30
Wheel Speed Sensors................... 8W-35
Wiper High/Low Relay................. 8W-53
Wiper Motor-Front.................... 8W-53
8W - 02 - 2 8W-02 COMPONENT INDEXDR

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-51 REAR LIGHTING
Component Page
Backup Lamp Switch............... 8W-51-3, 5
Brake Lamp Switch.................. 8W-51-7
Center High Mounted Stop Lamp-
Aftermarket...................... 8W-51-7
Center High Mounted Stop Lamp/Cargo
Lamp........................... 8W-51-7
Fender Lamp-Front Left............... 8W-51-4
Fender Lamp-Front Right............. 8W-51-4
Fender Lamp-Rear Left............... 8W-51-4
Fender Lamp-Rear Right.............. 8W-51-4
Front Control Module......... 8W-51-2, 3, 5, 6, 7
Fuse 15........................ 8W-51-2, 3, 7
Fuse 24............................ 8W-51-7
Fuse 32............................ 8W-51-3
Fuse 33............................ 8W-51-7
Fuse 34............................ 8W-51-2
Fuse 38............................ 8W-51-3Component Page
G103........................ 8W-51-2, 3, 5, 6
G104........................ 8W-51-2, 3, 5, 6
G202.............................. 8W-51-7
Integrated Power Module...... 8W-51-2, 3, 5, 6, 7
License Lamp-Left................... 8W-51-2
License Lamp-Right.................. 8W-51-3
Park Lamp Relay................ 8W-51-2, 3, 7
Park/Turn Signal Lamp-Left Front....... 8W-51-2
Park/Turn Signal Lamp-Right Front..... 8W-51-3
Tail/Stop/Turn Signal Lamp-Left...... 8W-51-2, 5
Tail/Stop/Turn Signal Lamp-Right....... 8W-51-6
Tailgate Lamp Assembly............. 8W-51-2, 4
Trailer Tow Connector................ 8W-51-7
Trailer Tow Connector- Add On....... 8W-51-5, 7
Transmission Range Sensor............ 8W-51-5
Transmission Solenoid/TRS Assembly.... 8W-51-5
DR8W-51 REAR LIGHTING 8W - 51 - 1

8W-52 TURN SIGNALS
Component Page
Data Link Connector................. 8W-52-2
Front Control Module......... 8W-52-2, 3, 4, 5, 6
Fuse 15............................ 8W-52-3
Fuse 32............................ 8W-52-3
Fuse 34............................ 8W-52-3
Fuse 46............................ 8W-52-6
Fuse 47............................ 8W-52-6
G103............................ 8W-52-4, 5
G104.......................... 8W-52-3, 4, 5
G105.............................. 8W-52-3
Instrument Cluster................... 8W-52-2
Integrated Power Module...... 8W-52-2, 3, 4, 5, 6
Multi-Function Switch................ 8W-52-2Component Page
Park Lamp Relay.................... 8W-52-3
Park/Turn Signal Lamp-Left Front....... 8W-52-3
Park/Turn Signal Lamp-Right Front..... 8W-52-3
Tail/Stop Lamp.................... 8W-52-4, 5
Tail/Stop/Turn Signal Lamp-Left...... 8W-52-3, 4
Tail/Stop/Turn Signal Lamp-Right....... 8W-52-5
Tail/Turn Lamp................... 8W-52-4, 5
Trailer Tow Connector................ 8W-52-6
Trailer Tow Connector-Add On.......... 8W-52-6
Trailer Tow Left Turn Relay............ 8W-52-6
Trailer Tow Right Turn Relay........... 8W-52-6
DR8W-52 TURN SIGNALS 8W - 52 - 1

8W-54 TRAILER TOW
Component Page
Brake Lamp Switch.................. 8W-54-5
Electric Brake Provision............... 8W-54-5
Front Control Module............. 8W-54-2, 3, 5
Fuse 1............................ 8W-54-5
Fuse 15.......................... 8W-54-2, 3
Fuse 24............................ 8W-54-5
Fuse 33.......................... 8W-54-2, 3
Fuse 46.......................... 8W-54-2, 3
Fuse 47.......................... 8W-54-2, 3
G103............................ 8W-54-3, 4Component Page
G104.......................... 8W-54-3, 4, 5
G106.............................. 8W-54-5
Integrated Power Module.......... 8W-54-2, 3, 5
Park Lamp Relay.................. 8W-54-2, 3
PTCNo.5........................ 8W-54-2, 3
Trailer Tow Connector............ 8W-54-2, 3, 4
Trailer Tow Connector-Add On...... 8W-54-2, 4, 5
Trailer Tow Left Turn Relay.......... 8W-54-2, 3
Trailer Tow Right Turn Relay......... 8W-54-2, 3
DR8W-54 TRAILER TOW 8W - 54 - 1

Component Page
Speaker-Right Instrument Panel....... 8W-80-97
Speaker-Right Rear................. 8W-80-97
Speed Control Servo................. 8W-80-97
Speed Control Switch-Left (ETC)....... 8W-80-98
Speed Control Switch-Left (Except ETC) . 8W-80-98
Speed Control Switch-Right (ETC)...... 8W-80-98
Speed Control Switch-Right (Except
ETC)........................... 8W-80-98
Switch-Driver Seat Belt.............. 8W-80-98
Switch-Passenger Airbag On-Off....... 8W-80-99
Tail/Stop/Turn Signal Lamp-Left....... 8W-80-99
Tail/Stop/Turn Signal Lamp-Right...... 8W-80-99
Tension Reducer-Seat Belt (Standard
Cab)........................... 8W-80-99
Tensioner-Left Seat Belt............. 8W-80-100
Tensioner-Right Seat Belt............ 8W-80-100
Throttle Position Sensor............. 8W-80-100
Throttle Position Sensor (Diesel)...... 8W-80-100
Trailer Tow Connector.............. 8W-80-101
Trailer Tow Connector-Add On........ 8W-80-101
Transfer Case Control Module C1...... 8W-80-101
Transfer Case Control Module C2...... 8W-80-102
Transfer Case Control Module C3...... 8W-80-102
Transfer Case Mode Sensor.......... 8W-80-102
Transfer Case Position Sensor (4.7L/
5.9L).......................... 8W-80-103
Transfer Case Selector Switch........ 8W-80-103
Transfer Case Shift Motor........... 8W-80-103
Transmission Control Module......... 8W-80-104Component Page
Transmission Range Sensor (5.9L/
Diesel)........................ 8W-80-105
Transmission Solenoid Assembly (5.9L/
8.0L).......................... 8W-80-105
Transmission Solenoid/Trs Assembly
(3.7L/4.7L/5.7L)................. 8W-80-106
Underhood Lamp.................. 8W-80-106
Vacuum Pump (Diesel).............. 8W-80-106
Vehicle Speed Sensor (Diesel)......... 8W-80-107
Vistronic Fan Drive (Diesel).......... 8W-80-107
Washer Fluid Level Switch........... 8W-80-107
Washer Pump Motor-Front........... 8W-80-107
Water In Fuel Sensor (Diesel)......... 8W-80-107
Wheel Speed Sensor-Left Front
(ABS)......................... 8W-80-108
Wheel Speed Sensor-Rear (ABS)....... 8W-80-108
Wheel Speed Sensor-Right Front
(ABS)......................... 8W-80-108
Wiper Motor-Front................. 8W-80-108
Washer Fluid Level Switch........... 8W-80-109
Washer Pump Motor-Front........... 8W-80-109
Water In Fuel Sensor (Diesel)......... 8W-80-109
Wheel Speed Sensor-Left Front
(ABS)......................... 8W-80-109
Wheel Speed Sensor-Rear (ABS)....... 8W-80-110
Wheel Speed Sensor-Right Front
(ABS)......................... 8W-80-110
Wiper Motor-Front................. 8W-80-110
8W - 80 - 4 8W-80 CONNECTOR PIN-OUTSDR

DRIVER DOOR MODULE C1 - BLUE 12 WAY
CAV CIRCUIT FUNCTION
1 Q28 14DG/WT RIGHT REAR WINDOW DRIVER (DOWN)
2 Q18 14GY/BK RIGHT REAR WINDOW DRIVER (UP)
3 Q16 14BR/WT MASTER WINDOW SWITCH RIGHT FRONT (UP)
4 Q17 14DB/WT LEFT REAR WINDOW DRIVER (UP)
5 Q11 14LB LEFT FRONT WINDOW DRIVER (UP)
6 Q26 14VT/WT MASTER WINDOW SWITCH RIGHT FRONT (DOWN)
7 P97 20WT/DG DRIVER DOOR LOCK SWITCH MUX
8 Z67 14BK GROUND
9 F21 14TN FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
10 Q27 14RD/BK LEFT REAR WINDOW DRIVER (DOWN)
11 Z75 20BK GROUND
12 Q21 14WT LEFT FRONT WINDOW DRIVER (DOWN)
DRIVER DOOR MODULE C2 - BLUE 8 WAY
CAV CIRCUIT FUNCTION
1 P71 20YL LEFT MIRROR UP DRIVER
2 P76 20OR/YL LEFT MIRROR COMMON DRIVER (RIGHT/DOWN)
3 F32 18RD/YL FUSED B(+)
4 P74 20DB RIGHT MIRROR LEFT DRIVER
5 Z239 20BK GROUND
6 P75 20DB/WT LEFT MIRROR LEFT DRIVER
7 P72 20YL/BK RIGHT MIRROR UP DRIVER
8 Q1 14YL POWER WINDOW SWITCH FEED
DRIVER HEATED SEAT CUSHION - DK GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 P141 18TN/LB DRIVER SEAT TEMPERATURE SENSOR INPUT
2 Z121 20BK/LG GROUND
3 P143 20BK/DG DRIVER SEAT TEMPERATURE 5 VOLT SUPPLY
4 P86 20PK/BK SEAT HEATER DRIVER
ELECTRIC BRAKE PROVISION - BLUE 4 WAY
CAV CIRCUIT FUNCTION
1 Y133 14RD/OR FUSED B(+)
2 B40 14LB TRAILER TOW BRAKE B(+)
3 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
4 Z255 18DG/BK GROUND
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 53

INTEGRATED POWER MODULE C1 - 26 WAY
CAV CIRCUIT FUNCTION
1 A112 12RD/TN (DIESEL) FUSED B(+)
1 A17 16RD/BK (EXCEPT DIESEL) FUSED B(+)
2 Y107 20VT/RD FUSED IGNITION SWITCH OUTPUT (RUN-START)
3- -
4 A20 20RD/DB FUSED IGNITION SWITCH OUTPUT (RUN)
5 Y141 18DG/WT TRAILER TOW LEFT TURN RELAY OUTPUT
6- -
7 Y140 18WT/PK TRAILER TOW RIGHT TURN RELAY OUTPUT
8 Y131 14RD/WT FUSED B(+)
9 M1 18PK FUSED B(+)
10 L7 18BK/YL TRAILER TOW RELAY OUTPUT
11 A21 16DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 F35 18RD FUSED B(+)
13 F32 20RD/YL FUSED B(+)
14 X2 18DG/RD HORN RELAY OUTPUT
15 A64 16DG/WT (EXCEPT 4.7L) FUEL PUMP RELAY OUTPUT
16 A108 18TN/RD FUSED B(+)
17 L76 18BK/OR FUSED PARK LAMP RELAY OUTPUT
18 F32 18RD/YL FUSED B(+)
19 Y174 18PK/VT FUSED PARK LAMP RELAY OUTPUT
20 - -
21 - -
22 - -
23 Y145 18DB/YL CONDENSER FAN RELAY CONTROL
24 - -
25 - - -
26 - -
INTEGRATED POWER MODULE C2 - WHITE 15 WAY
CAV CIRCUIT FUNCTION
1 A30 10RD/WT (EXCEPT BASE) FUSED B(+)
2 A34 16LB/RD (ETC) FUSED B(+)
3 Y148 18YL/RD FUSED B(+)
4 A61 16DG/BK (3.9L/5.7L/5.9L) FUEL PUMP RELAY OUTPUT
5 F37 12RD/LB (EXCEPT BASE) FUSED B(+)
6 A2 10PK/BK FUSED B(+)
7 A14 20RD/WT FUSED B(+)
8 A10 14RD/DG FUSED B(+)
9 A12 18RD/TN FUSED B(+)
10 A22 16BK/OR FUSED B(+)
11 - -
12 F30 18RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
13 F75 18VT (EXCEPT BASE) FUSED B(+)
14 A1 16RD FUSED B(+)
15 - -
8W - 80 - 70 8W-80 CONNECTOR PIN-OUTSDR