Diesel DODGE RAM 2003 Service Repair Manual

Component Page
Glove Box Lamp And Switch.......... 8W-80-63
Headlamp Switch................... 8W-80-63
Headlamp-Left..................... 8W-80-64
Headlamp-Right.................... 8W-80-64
Heated Seat Cushion-Passenger........ 8W-80-64
Heated Seat Switch-Driver............ 8W-80-64
Heated Seat Switch-Passenger......... 8W-80-65
Horn Switch....................... 8W-80-65
Horn-High Note.................... 8W-80-65
Horn-Low Note..................... 8W-80-65
Idle Air Control Motor (3.7L/5.9L/8.0L) . . 8W-80-65
Idle Air Control Motor (NGC).......... 8W-80-66
Ignition Coil (5.9L).................. 8W-80-66
Ignition Coil-Left (8.0L).............. 8W-80-66
Ignition Coil-Right (8.0L)............. 8W-80-66
Ignition Switch..................... 8W-80-67
Inlet Air Temperature/ Pressure Sensor
(Diesel)......................... 8W-80-67
Input Speed Sensor (3.7L/4.7L/5.7L)..... 8W-80-67
Instrument Cluster C1............... 8W-80-68
Instrument Cluster C2............... 8W-80-68
Instrument Cluster C3............... 8W-80-69
Intake Air Temperature Sensor........ 8W-80-69
Intake Air Temperature/Manifold Absolute
Pressure Sensor (Diesel)............ 8W-80-69
Integrated Power Module C1.......... 8W-80-70
Integrated Power Module C2.......... 8W-80-70
Integrated Power Module C3.......... 8W-80-71
Integrated Power Module C4.......... 8W-80-71
Integrated Power Module C5.......... 8W-80-72
Integrated Power Module C6.......... 8W-80-72
Integrated Power Module C7.......... 8W-80-73
Knock Sensor (3.7L)................. 8W-80-73
Knock Sensor-Left (5.7L)............. 8W-80-74
Knock Sensor-Right (5.7L)............ 8W-80-74
Leak Detection Pump (NGC).......... 8W-80-74
Leak Detection Pump................ 8W-80-74
License Lamp-Left.................. 8W-80-74
License Lamp-Right................. 8W-80-75
Lift Pump Motor (Diesel)............. 8W-80-75
Line Pressure Sensor (3.7L/5.7L)....... 8W-80-75
Line Pressure Sensor (4.7L)........... 8W-80-75
Lumbar Motor-Driver................ 8W-80-76
Lumbar Motor-Passenger............. 8W-80-76
Manifold Absolute Pressure Sensor
(3.7L/4.7L/5.7L).................. 8W-80-76
Manifold Absolute Pressure Sensor
(5.9L/8.0L)...................... 8W-80-76
Mode Door Actuator 1 (Panel To Floor) . . . 8W-80-77
Mode Door Actuator 2 (Defrost To Floor) . 8W-80-77
Multi-Function Switch............... 8W-80-77
Output Speed Sensor (3.7L/4.7L/5.7L) . . . 8W-80-77
Output Speed Sensor (5.9L)........... 8W-80-77
Output Speed Sensor (Diesel).......... 8W-80-78Component Page
Overdrive Switch................... 8W-80-78
Overhead Map/Reading Lamp (Except
Base).......................... 8W-80-78
Oxygen Sensor 1/1 Upstream.......... 8W-80-78
Oxygen Sensor 1/2 Downstream........ 8W-80-79
Oxygen Sensor 2/1 Upstream (California 4.7L/
California 5.9L).................. 8W-80-79
Oxygen Sensor 2/2 Downstream (California
4.7L/California 5.9L)............... 8W-80-79
Park/Turn Signal Lamp-Left Front...... 8W-80-80
Park/Turn Signal Lamp-Right Front.... 8W-80-80
Passenger Blend Door Actuator (Dual-
Zone).......................... 8W-80-80
Passenger Lumbar Switch............ 8W-80-80
Power Mirror-Left................... 8W-80-80
Power Mirror-Right................. 8W-80-81
Power Outlet...................... 8W-80-81
Power Outlet-Console (Except Base)..... 8W-80-81
Power Seat Motor-Driver Front Vertical . . 8W-80-81
Power Seat Motor-Driver Horizontal.... 8W-80-82
Power Seat Motor-Driver Rear Vertical . . 8W-80-82
Power Seat Switch-Driver............ 8W-80-82
Power Seat Switch-Passenger.......... 8W-80-82
Power Steering Pressure Switch
(3.7L/4.7L/5.7L).................. 8W-80-83
Power Window Motor-Driver.......... 8W-80-83
Power Window Motor-Left Rear........ 8W-80-83
Power Window Motor-Passenger........ 8W-80-83
Power Window Motor-Right Rear....... 8W-80-83
Power Window Switch-Left Rear....... 8W-80-84
Power Window Switch-Right Rear...... 8W-80-84
Power Window-Circuit Breaker........ 8W-80-84
Powertrain Control Module........... 8W-80-84
Powertrain Control Module........... 8W-80-85
Powertrain Control Module........... 8W-80-86
Powertrain Control Module C1 (JTEC) . . . 8W-80-87
Powertrain Control Module C1 (NGC) . . . 8W-80-88
Powertrain Control Module C2 (JTEC) . . . 8W-80-89
Powertrain Control Module C2 (NGC) . . . 8W-80-90
Powertrain Control Module C3 (JTEC) . . . 8W-80-91
Powertrain Control Module C3 (NGC) . . . 8W-80-92
Powertrain Control Module C4 (NGC) . . . 8W-80-93
Radio (Base)....................... 8W-80-94
Radio (Premium)................... 8W-80-94
Recirculation Door Actuator........... 8W-80-95
Remote Radio Switch-Left............ 8W-80-95
Remote Radio Switch-Right........... 8W-80-95
Seat Heater Interface Module.......... 8W-80-95
Sentry Key Immobilizer Module........ 8W-80-96
Speaker-Center Instrument Panel...... 8W-80-96
Speaker-Left Front Door.............. 8W-80-96
Speaker-Left Instrument Panel........ 8W-80-96
Speaker-Left Rear.................. 8W-80-96
Speaker-Right Front Door............ 8W-80-97
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 3

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

4WD SWITCH (MANUAL TRANSFER CASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K77 18BR/WT 4WD SWITCH SENSE
2 K4 18BK/LB SENSOR GROUND
A/C COMPRESSOR CLUTCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C3 20DB/BK A/C CLUTCH RELAY OUTPUT
2 Z359 18BK/BR GROUND
A/C PRESSURE TRANSDUCER - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K6 18VT/WT (EXCEPT NGC) 5 VOLT SUPPLY
2 K7 18OR (NGC) 5-VOLT SUPPLY
3 C18 18DB A/C PRESSURE SIGNAL
4- -
A/C PRESSURE TRANSDUCER (DIESEL)-4WAY
CAV CIRCUIT FUNCTION
1 K55 18LB/WT MASS AIR FLOW SENSOR SIGNAL
2 K72 18DG/OR 5 VOLTS SUPPLY
3 C18 18DB A/C PRESSURE SIGNAL
4- -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 5

A/C-HEATER CONTROL C1 - BLACK 16 WAY
CAV CIRCUIT FUNCTION
1 F15 20DB FUSED IGNITION SWITCH OUTPUT (RUN)
2 Z120 20WT/BK GROUND
3 C57 20DB/GY SENSOR GROUND
4 C33 20DB/RD MODE DOOR 2 DRIVER
5- -
6 C12 20LG/BK EVAPORATOR TEMPERATURE SENSOR SIGNAL
7- -
8 Y165 20OR/YL PANEL LAMPS DRIVER
9 C62 20DB/PK BLEND DOOR DRIVER
10 C35 20DG/YL MODE DOOR 1 DRIVER
11 C34 20DB/WT COMMON DOOR DRIVER
12 C32 20GY/DB RECIRCULATION DOOR DRIVER
13 C46 20YL/LG PASSENGER BLEND DOOR DRIVER
14 - -
15 C16 20LB/YL HEATED MIRROR RELAY CONTROL
16 D25 20VT/LG PCI BUS
A/C-HEATER CONTROL C2 - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 C4 16TN BLOWER MOTOR LOW DRIVER
3 C6 14LB BLOWER MOTOR M2 DRIVER
4- -
5 Z37 10BK/DB GROUND
6- -
7 C5 16LG BLOWER MOTOR M1 DRIVER
8- -
9- -
10 C7 10BK/TN BLOWER MOTOR HIGH DRIVER
ACCELERATOR PEDAL POSITION SENSOR (5.7L/DIESEL M/T NORMAL BUILD)-6WAY
CAV CIRCUIT FUNCTION
1 K81 20DB/DG APPS NO. 2 SIGNAL
2 K6 20VT/WT 5-VOLT SUPPLY
3 K7 20OR 5-VOLT SUPPLY
4 K981 20BR/DG APPS NO. 2 RETURN
5 K255 20WT/DG APPS NO. 1 SIGNAL
6 K223 20PK/DB APPS NO. 1 RETURN
8W - 80 - 6 8W-80 CONNECTOR PIN-OUTSDR

BATTERY TEMPERATURE SENSOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K118 18PK/YL BATT TEMP SIGNAL
2 K4 18BK/LB SENSOR GROUND
BLEND DOOR ACTUATOR (SINGLE-ZONE)-2WAY
CAV CIRCUIT FUNCTION
1 C34 20DB/WT COMMON DOOR DRIVER
2 C62 20DB/PK BLEND DOOR DRIVER
BLOWER MOTOR-2WAY
CAV CIRCUIT FUNCTION
1 C7 10BK/TN BLOWER MOTOR HIGH DRIVER
2 C1 10DG BLOWER MOTOR FEED
BLOWER MOTOR RESISTOR BLOCK - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 C5 16LG BLOWER MOTOR M1 DRIVER
2 C7 12BK/TN BLOWER MOTOR HIGH DRIVER
3 C4 16TN BLOWER MOTOR LOW DRIVER
4 C6 14LB BLOWER MOTOR M2 DRIVER
BOOST PRESSURE SENSOR (DIESEL)-3WAY
CAV CIRCUIT FUNCTION
1 K72 18DG/OR 5 VOLTS SUPPLY
2 K9 18LB FUEL PRESSURE SENSOR 5 VOLT SUPPLY
3 K55 18LB/WT MASS AIR FLOW SENSOR SIGNAL
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 11

BRAKE FLUID LEVEL SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G9 20GY/BK BRAKE FLUID LEVEL SWITCH SENSE
2 Z231 20BK/DG GROUND
BRAKE LAMP SWITCH - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 A108 18TN/RD FUSED B(+)
2 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
3 V30 20DB/RD SPEED CONTROL BRAKE SWITCH OUTPUT
3 V30 20DB/RD (NGC) FUSED IGNITION SWITCH (RUN-START)
4 V32 20YL/RD SPEED CONTROL SUPPLY
4 V32 20YL/RD (5.7L) BRAKE SWITCH NO. 2 SIGNAL
5 Z241 20BK/VT GROUND
6 K29 20WT/PK BRAKE SWITCH SENSE
6 K29 20WT/PK (NGC) BRAKE SWITCH NO. 1 SIGNAL
BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Y204 18OR/WT BTSI SOLENOID CONTROL
2 Z123 18BK/OR GROUND
C100 (DIESEL) - (DASH TO ENGINE)
CAV CIRCUIT
A K152 28WT
B B6 20WT/DB
C B7 20WT
D Z11 18BK/WT
E-
F Y1 18LG
G K4 18BK/LB
H Y169 18WT/TN
J Y168 18WT/LB
K Y3 18WT
L L60 18LG/TN
M L7 18BK/YL
N F15 20DB
P Y5 18OR
R-
S K154 18GY
8W - 80 - 12 8W-80 CONNECTOR PIN-OUTSDR

C100 (DIESEL) - (ENGINE TO DASH)
CAV CIRCUIT
1 K152 18WT
2 B6 20WT/DB
3 B7 20WT
4 Z11 18BK/WT
5-
6 Y1 18LG
7 K4 18BK/LB
8 Y169 18WT/TN
9 Y168 18WT/LB
10 Y3 18WT
11 L60 18LG/TN
12 L7 18BK/YL
13 F15 20DB
14 Y5 18OR
15 -
16 K154 18GY
C100 (GAS) - BLACK (DASH TO ENGINE)
CAV CIRCUIT
1 V10 20BR (EXCEPT 8.0L)
2 B6 20WT/DB
3 B7 20WT
4 G29 20BK/TN (EXCEPT 8.0L)
5 Y137 20VT/LB (EXCEPT 8.0L)
6 Y169 18WT/TN
7 Y168 18WT/LB
8 L60 18LG/TN
9 L7 18BK/YL
10 -
C100 (GAS) - BLACK (ENGINE TO DASH)
CAV CIRCUIT
1 V10 20BR (EXCEPT 8.0L)
2 B6 20WT/DB
3 B7 20WT
4 G29 20BK/TN (EXCEPT 8.0L)
5 Y137 20VT/LB (EXCEPT 8.0L)
6 Y169 18WT/TN
7 Y168 18WT/LB
8 L60 18LG/TN
9 L7 18BK/YL
10 -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 13

C107 (5.7L) - BLACK
CAV CIRCUIT
1 K4 18BK/LB
2 K1 18DG/RD
3 K21 18BK/RD
4 K101 18WT
5 K6 18VT/WT
6 K888 18BR/PK
7 A142 16DG/OR
8 K7 18OR
9 K2 18TN/BK
10 K122 18DB/GY
11 K22 18OR/DB
12 -
13 F855 18OR/PK
14 A142 16DG/OR
C107 (5.7L) - BLACK (ENGINE TO
TRANSMISSION)
CAV CIRCUIT
1 K4 18BK/LB
2 K1 18DG/RD
3 K21 18BK/RD
4 K101 18WT
5 K6 18VT/WT
6 K888 18BR/PK
7 A142 16DG/OR
8 K7 18OR
9 K2 18TN/BK
10 K122 18DB/GY
11 K22 18OR/DB
12 -
13 F855 18OR/PK
14 A142 16DG/OR
C108 (DIESEL)
CAV CIRCUIT
1 G7 18WT/OR
2 C13 18DB/OR
3 A93 14RD/BK
4 K118 18PK/YL
5 G8 18LB/BK
6 D25 18VT/YL
7 K77 18BR/WT
8 V32 18YL/WT
9 K152 18WT
10 K22 18OR/DB
11 K154 18GY
12 -
13 -
14 -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 15

C108 (DIESEL) - (ENGINE TO TRANSMISSION)
CAV CIRCUIT
1 G7 18WT/OR
2 C13 18DB/OR
3 A53 14RD/BK
4 K118 18PK/YL
5 G8 18LB/BK
6 D25 18VT/YL
7 K77 18BR/WT
8 V32 18YL/RD
9 K152 18WT
10 K22 18OR/DB
11 K154 18GY
12 -
13 -
14 -
C110 (DIESEL)
CAV CIRCUIT
1 C3 18DB/BK
2 K29 18WT/PK
3 K4 18BK/LB
4 V37 18RD/LG
5 V37 18RD/LG
6 Y1 18LG
7 Y5 18OR
8 Y3 18WT
9 D20 18LG
10 D21 18PK
11 Y135 18LG/BK
12 -
13 -
14 -
C110 (DIESEL) - (ENGINE TO TRANSMISSION)
CAV CIRCUIT
1 C3 18DB/BK
2 K29 18WT/PK
3 K24 18WT/DG
4 K4 18BK/LB
5 V37 18RD/LG
6 Y1 18LG
7 Y5 18OR
8 Y3 18WT
9 D20 18LG
10 D21 18PK
11 Y135 18LG/BK
12 -
13 -
14 -
8W - 80 - 16 8W-80 CONNECTOR PIN-OUTSDR

C112 (DIESEL)
CAV CIRCUIT
1 C3 18DB/BK
2 A93 14RD/BK
3 Y523 18VT/WT
4 T503 18GY/BR
C112 (DIESEL)
CAV CIRCUIT
1 C3 18DB/BK
2 A93 14RD/BK
3 K69 18BR/LB
4 K68 18BR/LG
C115 (DIESEL)
CAV CIRCUIT
1 K91 14TN/RD
2 K12 14YL/WT
3 K91 14TN/RD
4 K11 14WT/DB
C115 (DIESEL) - (INJECTOR SIDE)
CAV CIRCUIT
1 K91 14TN/RD
2 K12 14YL/WT
3 K91 14TN/RD
4 K11 14WT/DB
C116 (DIESEL)
CAV CIRCUIT
1 K92 14TN/PK
2 K14 14RD/WT
3 K91 14TN/RD
4 K13 14TN
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 17