2003 DODGE RAM automatic transmission

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MPG check transmission fluid power steering AUX jacking points ECU

Page 710 of 2895

DODGE RAM 2003 Service Repair Manual DESCRIPTION - CONNECTOR, GROUND AND
SPLICE INFORMATION
CAUTION: Not all connectors are serviced. Some
connectors are serviced only with a harness. A typ-
ical example might be the Supplemental Restrai

DESCRIPTION - CONNECTOR, GROUND AND
SPLICE INFORMATION
CAUTION: Not all connectors are serviced. Some
connectors are serviced only with a harness. A typ-
ical example might be the Supplemental Restraint
System connectors. Always check parts availability
before attempting a repair.
IDENTIFICATION
In-line connectors are identified by a number, as
follows:
²In-line connectors located in the engine compart-
ment are C100 series numbers
²In-line connectors located in the Instrument
Panel area are C200 series numbers.
²In-line connectors located in the body are C300
series numbers.
²Jumper harness connectors are C400 series
numbers.
²Grounds and ground connectors are identified
with a ªGº and follow the same series numbering as
the in-line connectors.
²Splices are identified with an ªSº and follow the
same series numbering as the in-line connectors.
²Component connectors are identified by the com-
ponent name instead of a number. Multiple connec-
tors on a component use a C1, C2, etc. identifier.
LOCATIONS
Section 8W-91 contains connector/ground/splice
location illustrations. The illustrations contain the
connector name (or number)/ground number/splice
number and component identification. Connector/
ground/splice location charts in section 8W-91 refer-
ence the figure numbers of the illustrations.
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component. The abbre-
viation N/S means Not Shown in the illustrations
WARNING
WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY AND AVOID LOOSE
CLOTHING.
DIAGNOSIS AND TESTING - WIRING HARNESS
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicles are Solid State. When checking
voltages in these circuits, use a meter with a 10 -
megohm or greater impedance rating.
DR8W-01 WIRING DIAGRAM INFORMATION 8W - 01 - 7
WIRING DIAGRAM INFORMATION (Continued)

Page 720 of 2895

DODGE RAM 2003 Service Repair Manual 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-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

Page 722 of 2895

DODGE RAM 2003 Service Repair Manual 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

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

Page 780 of 2895

DODGE RAM 2003 Service Repair Manual 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

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

Page 908 of 2895

DODGE RAM 2003 Service Repair Manual 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 Interloc

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

Page 998 of 2895

DODGE RAM 2003 Service Repair Manual 8W-49 OVERHEAD CONSOLE
Component Page
Ambient Temperature Sensor......... 8W-49-3, 4
Automatic Day/Night Mirror........... 8W-49-2
Backup Lamp Switch................. 8W-49-2
Compass/Mini-Trip Compute

Page 1068 of 2895

DODGE RAM 2003 Service Repair Manual 8W-80 CONNECTOR PIN-OUTS
Component Page
4WD Switch (Manual Transfer Case)..... 8W-80-5
A/C Compressor Clutch............... 8W-80-5
A/C Pressure Transducer.............. 8W-80-5
A/C Pressure Transduce

8W-80 CONNECTOR PIN-OUTS
Component Page
4WD Switch (Manual Transfer Case)..... 8W-80-5
A/C Compressor Clutch............... 8W-80-5
A/C Pressure Transducer.............. 8W-80-5
A/C Pressure Transducer (Diesel)........ 8W-80-5
A/C-Heater Control C1................ 8W-80-6
A/C-Heater Control C2................ 8W-80-6
Accelerator Pedal Position Sensor
(5.7L/Diesel M/T Normal Build)....... 8W-80-6
Adjustable Pedal Motor............... 8W-80-7
Adjustable Pedal Switch............... 8W-80-7
Airbag Control Module................ 8W-80-7
Airbag Control Module-Left Side Impact . . 8W-80-8
Airbag Control Module-Right Side Impact . 8W-80-8
Airbag-Driver Squib 1................ 8W-80-8
Airbag-Left Curtain Squib............. 8W-80-8
Airbag-Passenger Squib 1............. 8W-80-9
Airbag-Right Curtain Squib............ 8W-80-9
Ambient Temperature Sensor........... 8W-80-9
Amplifier Audio C1................... 8W-80-9
Amplifier Audio C2.................. 8W-80-10
Automatic Day/Night Mirror (Except
Base).......................... 8W-80-10
Backup Lamp Switch (3.7L/4.7L/5.7L/
8.0L)........................... 8W-80-10
Battery Temperature Sensor........... 8W-80-11
Blend Door Actuator (Single-Zone)...... 8W-80-11
Blower Motor...................... 8W-80-11
Blower Motor Resistor Block.......... 8W-80-11
Boost Pressure Sensor (Diesel)......... 8W-80-11
Brake Fluid Level Switch............. 8W-80-12
Brake Lamp Switch................. 8W-80-12
Brake Transmission Shift Interlock
Solenoid........................ 8W-80-12
C100 (Diesel)...................... 8W-80-12
C100 (Diesel)...................... 8W-80-13
C100 (Gas)........................ 8W-80-13
C100 (Gas)........................ 8W-80-13
C106 (5.7L)........................ 8W-80-14
C106 (5.7L)........................ 8W-80-14
C107 (5.7L)........................ 8W-80-15
C107 (5.7L)........................ 8W-80-15
C108 (Diesel)...................... 8W-80-15
C108 (Diesel)...................... 8W-80-16
C110 (Diesel)...................... 8W-80-16
C110 (Diesel)...................... 8W-80-16
C112 (Diesel)...................... 8W-80-17
C112 (Diesel)...................... 8W-80-17
C115 (Diesel)...................... 8W-80-17
C115 (Diesel)...................... 8W-80-17
C116 (Diesel)...................... 8W-80-17
C116 (Diesel)...................... 8W-80-18
C117 (Diesel)...................... 8W-80-18Component Page
C117 (Diesel)...................... 8W-80-18
C130............................. 8W-80-18
C130............................. 8W-80-20
C200............................. 8W-80-22
C200............................. 8W-80-22
C201............................. 8W-80-22
C201............................. 8W-80-23
C202............................. 8W-80-23
C202............................. 8W-80-23
C206............................. 8W-80-23
C206 (SLT+)....................... 8W-80-24
C216............................. 8W-80-24
C216............................. 8W-80-24
C217............................. 8W-80-24
C217............................. 8W-80-25
C218............................. 8W-80-25
C218............................. 8W-80-25
C219............................. 8W-80-26
C219............................. 8W-80-28
C220............................. 8W-80-29
C220............................. 8W-80-30
C301............................. 8W-80-30
C301............................. 8W-80-31
C302............................. 8W-80-31
C302............................. 8W-80-31
C304............................. 8W-80-32
C304............................. 8W-80-32
C305............................. 8W-80-32
C305............................. 8W-80-33
C306............................. 8W-80-33
C306............................. 8W-80-33
C307 (Tail Lamp Jumper)............. 8W-80-34
C307 (Tail Lamp Jumper)............. 8W-80-34
C308............................. 8W-80-34
C308............................. 8W-80-35
C309............................. 8W-80-35
C309............................. 8W-80-35
C310 (Tail Lamp Jumper)............. 8W-80-36
C310 (Tail Lamp Jumper)............. 8W-80-36
C311 (Except SLT+)................. 8W-80-36
C311 (Except SLT+)................. 8W-80-36
C312............................. 8W-80-37
C312............................. 8W-80-37
C313............................. 8W-80-37
C313............................. 8W-80-38
C314............................. 8W-80-38
C314............................. 8W-80-38
C315 (Heated/Power Seat)............ 8W-80-38
C315............................. 8W-80-39
C316............................. 8W-80-39
C316............................. 8W-80-39
C317............................. 8W-80-39
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 1

Page 1178 of 2895

DODGE RAM 2003 Service Repair Manual 8W-91 CONNECTOR/GROUND/SPLICE LOCATION
TABLE OF CONTENTS
page
CONNECTOR/GROUND/SPLICE LOCATION
DESCRIPTION..........................1
CONNECTOR/GROUND/SPLICE
LOCATION
DESCRIPTION
This section provides

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