2003 DODGE RAM Data link

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-18 BUS COMMUNICATIONS
Component Page
A/C-Heater Control................... 8W-18-4
Airbag Control Module................ 8W-18-4
Airbag Control Module-Left
Side Impact.................... 8W-18-5, 6
Airbag Control Module-Right
Side Impact.................... 8W-18-5, 6
Amplifier Audio..................... 8W-18-4
Compass/Mini-Trip Computer........... 8W-18-4
Controller Antilock Brake............ 8W-18-5, 6
Data Link Connector............. 8W-18-2, 3, 4
Data Link Connector-Engine........... 8W-18-3
Engine Control Module................ 8W-18-3Component Page
Front Control Module............... 8W-18-5, 6
Fuse 51.......................... 8W-18-2, 3
G120.............................. 8W-18-3
G201............................ 8W-18-2, 3
Instrument Cluster................... 8W-18-4
Integrated Power Module........ 8W-18-2, 3, 5, 6
Powertrain Control Module...... 8W-18-2, 3, 5, 6
Radio............................. 8W-18-4
Sentry Key Immobilizer Module....... 8W-18-5, 6
Transfer Case Control Module........ 8W-18-5, 6
Transmission Control Module......... 8W-18-2, 5
DR8W-18 BUS COMMUNICATIONS 8W - 18 - 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-34 REAR WHEEL ANTILOCK BRAKES
Component Page
Brake Lamp Switch.................. 8W-34-3
Controller Antilock Brake............ 8W-34-2, 3
Data Link Connector................. 8W-34-2
Fuse 6............................ 8W-34-2
Fuse 35............................ 8W-34-2
G106.............................. 8W-34-2
G201.............................. 8W-34-3Component Page
Integrated Power Module.............. 8W-34-2
Powertrain Control Module.......... 8W-34-2, 3
Red Brake Warning Indicator Switch..... 8W-34-2
Transmission Control Module........... 8W-34-2
Wheel Speed Sensor-Rear.............. 8W-34-3
DR8W-34 REAR WHEEL ANTILOCK BRAKES 8W - 34 - 1

8W-35 ALL WHEEL ANTILOCK BRAKES
Component Page
Brake Lamp Switch.................. 8W-35-3
Controller Antilock Brake............ 8W-35-2, 3
Data Link Connector................. 8W-35-2
Fuse 6............................ 8W-35-2
Fuse 35............................ 8W-35-2
G106.............................. 8W-35-2
G201.............................. 8W-35-3
Integrated Power Module.............. 8W-35-2Component Page
Powertrain Control Module.......... 8W-35-2, 3
Red Brake Warning Indicator Switch..... 8W-35-2
Transmission Control Module........... 8W-35-2
Wheel Speed Sensor-Left Front......... 8W-35-3
Wheel Speed Sensor-Rear.............. 8W-35-3
Wheel Speed Sensor-Right Front........ 8W-35-3
DR8W-35 ALL WHEEL ANTILOCK BRAKES 8W - 35 - 1

8W-39 VEHICLE THEFT SECURITY SYSTEM
Component Page
Cylinder Lock Switch-Driver........... 8W-39-5
Cylinder Lock Switch-Passenger........ 8W-39-4
Data Link Connector................. 8W-39-3
Door Lock Motor/Ajar Switch-Driver..... 8W-39-5
Door Lock Motor/Ajar Switch-Left Rear . . . 8W-39-5
Door Lock Motor/Ajar Switch-Passenger . . 8W-39-4
Door Lock Motor/Ajar Switch-Right Rear . . 8W-39-4
Front Control Module................. 8W-39-3
Fuse 15............................ 8W-39-3
Fuse 19............................ 8W-39-2
Fuse 22............................ 8W-39-2
Fuse 45............................ 8W-39-3
G105.............................. 8W-39-3Component Page
G106.............................. 8W-39-3
G201.............................. 8W-39-2
G301............................ 8W-39-4, 5
Headlamp-Left...................... 8W-39-3
Headlamp-Right..................... 8W-39-3
Horn Relay......................... 8W-39-3
Instrument Cluster............... 8W-39-2, 4, 5
Integrated Power Module............ 8W-39-2, 3
Park Lamp Relay.................... 8W-39-3
PTCNo.1.......................... 8W-39-2
Sentry Key Immobilizer Module......... 8W-39-2
DR8W-39 VEHICLE THEFT SECURITY SYSTEM 8W - 39 - 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