DODGE RAM 2003 Service Repair Manual

ELECTRONIC THROTTLE CONTROL MODULE (5.7L) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1 K22 18OR/DB TP NO.1 SIGNAL
2 K7 18OR 5 VOLT SUPPLY
3 F888 18BR/PK ETC MOTOR(+)
4 K122 18DB/GY TP NO.2 SIGNAL
5 F855 18OR/PK ETC MOTOR(-)
6 K101 18WT TP SENSOR RETURN
ENGINE CONTROL MODULE - C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3- -
4 D1 18VT/BR CCD BUS (+)
5 D2 18WT/BK CCD BUS (-)
6 K65 18OR/RD FUEL PUMP SUPPLY
7 K20 18DG GENERATOR FIELD CONTROL
8- -
9- -
10 - -
11 - -
12 K102 18PK/BK FUEL PRESSURE SENSOR SIGNAL
13 - -
14 K232 18YL APPS SIGNAL
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 - -
17 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
18 - -
19 K31 18BR FUEL PUMP RELAY CONTROL
20 - -
21 - -
22 G17 18WT/TN SPEEDOMETER SIGNAL
23 K104 18RD/WT SENSOR GROUND
24 K53 18DB/RD HALL EFFECT
25 Y501 18DB/YL 5 VOLT SUPPLY
26 C18 18DB A/C PRESSURE SIGNAL
27 K6 18VT/WT 5 VOLT SUPPLY
28 - -
29 Y502 18DG/YL INLET AIR TEMPERATURE/PRESSURE RETURN
30 K118 16WT/DB BATTERY TEMPERATURE SENSOR SIGNAL
31 G20 18VT/YL IGNITION SWITCH SENSE
32 K55 18LB/WT MASS AIR FLOW SENSOR SIGNAL
33 K56 18LG/OR APPS SENSOR RETURN
34 K49 18VT/BK APPS IDLE SWITCH
35 - -
36 K14 16RD/WT FUEL INJECTOR NO. 4 DRIVER
37 - -
8W - 80 - 54 8W-80 CONNECTOR PIN-OUTSDR

ENGINE CONTROL MODULE - C1 (DIESEL) - 60 WAY
CAV CIRCUIT FUNCTION
38 - -
39 - -
40 K13 16TN FUEL INJECTOR NO. 3 DRIVER
41 - -
42 K900 18DB/DG 5 VOLT SUPPLY
43 K9 18LB 5 VOLT SUPPLY
44 K101 18WT APPS NOT IDLE SWITCH
45 K62 18BR/DB LETF PUMP
46 K58 16BR/DB FUEL INJECTOR NO. 6 DRIVER
47 - -
48 - -
49 - -
50 K12 16YL/WT FUEL INJECTOR NO. 2 DRIVER
51 - -
52 K167 18BR/YL ACCELERATOR PEDAL POSITION SENSOR GROUND
NO. 1
53 G910 18VT/RD FUEL PRESSURE SENSOR SIGNAL RETURN
54 K72 18DG/OR MAP SENSOR SIGNAL
55 - -
56 K38 16GY FUEL INJECTOR NO. 5 DRIVER
57 K92 16TN/PK COIL ON PLUG DRIVER NO. 2
58 - -
59 K91 16TN/RD COIL ON PLUG DRIVER NO. 1
60 - -
ENGINE CONTROL MODULE - C2 (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
1 K22 18DR/DB THROTTLE POSITION SENSOR SIGNAL
2 K24 18WT/DG CRANKSHAFT POSITION SENSOR SIGNAL
3 K69 18 BR/LB INJECTOR CONTROL SIGNAL NO.1
4- -
5 K154 18GY GLOW PLUG RELAY NO. 1 OUTPUT
6 K152 18WT GLOW PLUG RELAY NO. 1 CONTROL
7- -
8- -
9- -
10 Y5 18OR FAN SPEED SENSOR
11 G7 18WT/OR VEHICLE SPEED SIGNAL
12 G60 18GY/YL ENGINE OIL PRESSURE SWITCH SENSE
13 - -
14 - -
15 - -
16 D21 18PK SCI TRANSMIT
17 - -
18 - -
19 D20 18LG SCI RECEIVE
20 A140 16DG/WT FUSED B(+)
21 Z816 16BK/TN GROUND
22 - -
23 Y3 18WT -
24 K4 18BK/LB SENSOR GROUND
25 - -
26 G8 18 LB/BK FUEL LEVEL SENSOR SIGNAL
27 K77 18 BR/WT TRANSFER CASE POSITION SENSOR INPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 55

ENGINE CONTROL MODULE - C2 (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
28 D25 18VT/YL PCI BUS
29 - -
30 A140 16DG/WT FUSED B(+)
31 - -
32 Y135 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START)
33 - -
34 - -
35 K68 18BR/LG INLET AIR PRESSURE SENSE
36 V32 18YL/RD SPEED CONTROL SUPPLY
37 K29 18WT/PK BRAKE SWITCH SENSE
38 - -
39 - -
40 A140 16BG/WT FUSED B(+)
41 C13 18DB/OR A/C CLUTCH RELAY CONTROL
42 - -
43 Y1 18LG PARK LOCKOUT SOLENOID CONTROL
44 - -
45 - -
46 V37 18RD/YL S/C SWITCH SIGNAL
47 K118 18PK/YL BATTERY TEMPERATURE SENSOR SIGNAL
48 - -
49 Z816 16BK/TN GROUND
50 Z816 16BK/TN GROUND
ENGINE COOLANT TEMPERATURE SENSOR (3.7L/4.7L/5.7L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
2 K2 18TN/BK (4.7L/5.7L) ECT SIGNAL
ENGINE COOLANT TEMPERATURE SENSOR (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K104 18RD/WT SENSOR GROUND
2 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
8W - 80 - 56 8W-80 CONNECTOR PIN-OUTSDR

ENGINE OIL PRESSURE SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G60 18GY/YL ENGINE OIL PRESSURE SWITCH SENSE
2- -
EVAP/PURGE SOLENOID (EXCEPT NGC)-2WAY
CAV CIRCUIT FUNCTION
1 K52 18PK/BK EVAPORATIVE SOLENOID CONTROL
2 Y134 20GY/RD FUSED IGNITION SWITCH OUTPUT (RUN-START)
EVAP/PURGE SOLENOID (NGC) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K108 18WT/TN EVAP PURGE RETURN
2 K52 18PK/BK EVAP PURGE CONTROL
EVAPORATOR TEMPERATURE SENSOR-2WAY
CAV CIRCUIT FUNCTION
1 C57 20DB/GY SENSOR GROUND
2 C12 20LG/BK EVAPORATOR TEMPERATURE SENSOR SIGNAL
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 57

FENDER LAMP-FRONT LEFT - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Y174 18PK/VT FUSED PARK LAMP RELAY OUTPUT
2 Z57 18BK GROUND
FENDER LAMP-FRONT RIGHT - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Y174 18PK/VT FUSED PARK LAMP RELAY OUTPUT
2 Z57 18BK GROUND
FENDER LAMP-REAR LEFT - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Y174 18PK/VT FUSED PARK LAMP RELAY OUTPUT
2 Z57 18BK GROUND
FENDER LAMP-REAR RIGHT - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Y174 18PK/VT FUSED PARK LAMP RELAY OUTPUT
2 Z57 18BK GROUND
FOG LAMP-LEFT - GRAY 2 WAY
CAV CIRCUIT FUNCTION
A Z144 18BK/OR GROUND
B L39 18/LB FOG LAMP RELAY OUTPUT
8W - 80 - 58 8W-80 CONNECTOR PIN-OUTSDR

FOG LAMP-RIGHT - WHITE 2 WAY
CAV CIRCUIT FUNCTION
A Z144 18BK/OR GROUND
B L39 18LB FOG LAMP RELAY OUTPUT
FUEL CONTROL ACTUATOR (DIESEL)-3WAY
CAV CIRCUIT FUNCTION
1 K915 18VT/RD FUEL RAIL SENSOR RETURN
2 K102 18PK/BK FUEL PUMP DRIVER
3 K72 18DG/OR 5 VOLT SUPPLY
FUEL HEATER (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
A A93 14RD/BK FUEL HEATER RELAY OUTPUT
B Z378 14BK GROUND
FUEL INJECTOR NO. 1 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K91 14TN/RD COMMON INJECTOR DRIVER
2 K11 14WT/DB FUEL INJECTOR NO. 1 CONTROL
FUEL INJECTOR NO. 1 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K11 18WT/DB FUEL INJECTOR NO. 1 DRIVER
1 K11 18WT/DB (NGC) INJECTOR CONTROL NO. 1
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 59

FUEL INJECTOR NO. 2 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K91 14TN/RD COMMON INJECTOR DRIVER
2 K12 14YL/WT FUEL INJECTOR NO.1 CONTROL
FUEL INJECTOR NO. 2 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K12 18TN FUEL INJECTOR NO. 2 DRIVER
1 K12 18TN (NGC) INJECTOR CONTROL NO. 2
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 3 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K91 14TNRD COMMON INJECTOR DRIVER
2 K13 14TN FUEL INJECTOR NO. 3 CONTROL
FUEL INJECTOR NO. 3 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K13 18YL/WT FUEL INJECTOR NO. 3 DRIVER
1 K13 18YL/WT (NCG) INJECTOR CONTROL NO. 3
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 4 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K92 14TN/PK COMMON INJECTOR DRIVER
2 K14 14RD/WT FUEL INJECTOR NO. 4 CONTROL
8W - 80 - 60 8W-80 CONNECTOR PIN-OUTSDR

FUEL INJECTOR NO. 4 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K14 18LB/BR FUEL INJECTOR NO. 4 DRIVER
1 K14 18LB/BR (NGC) INJECTOR CONTROL NO. 4
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 5 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K92 14TN/PK COMMON INJECTOR DRIVER
2 K38 14GY FUEL INJECTOR NO. 5 CONTROL
FUEL INJECTOR NO. 5 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K38 18GY FUEL INJECTOR NO. 5 DRIVER
1 K38 18GY (NGC) INJECTOR CONTROL NO. 5
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 6 (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K92 14TN/PK COMMON INJECTOR DRIVER
2 K58 14BR/DB FUEL INJECTOR NO. 6 CONTROL
FUEL INJECTOR NO. 6 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K58 18BR/DB FUEL INJECTOR NO. 6 DRIVER
1 K58 18BR/DB (NGC) INJECTOR CONTROL NO. 6
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 61

FUEL INJECTOR NO. 7 (4.7L/5.7L/5.9L/8.0L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K26 18VT/TN FUEL INJECTOR NO. 7 DRIVER
1 K26 18VT/TN (NGC) INJECTOR CONTROL NO. 7
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 8 (4.7L/5.7L/5.9L/8.0L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K28 18GY/LB FUEL INJECTOR NO. 8 DRIVER
1 K28 18GY/LB (NGC) INJECTOR CONTROL NO. 8
2 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 9 (8.0L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K115 18TN FUEL INJECTOR NO. 9 DRIVER
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 10 (8.0L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K116 18WT/DB FUEL INJECTOR NO. 10 DRIVER
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
8W - 80 - 62 8W-80 CONNECTOR PIN-OUTSDR

FUEL PUMP MODULE - LT GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 Z211 18BK GROUND
2 K4 18BK/LB SENSOR GROUND
3 G8 18LB/BK FUEL LEVEL SENSOR SIGNAL
4 A64 16DG/WT FUEL PUMP RELAY OUTPUT
FUEL PUMP MOTOR (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K31 18BR FUEL PUMP SIGNAL RETURN
2 K65 18OR/RD FUEL PUMP RELAY CONTROL
GENERATOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K125 18WT/DB (JTEC/DIESEL) GENERATOR SOURCE
1 K20 18DG (NGC) GEN FIELD CONTROL
2 K20 18DG (JTEC/DIESEL) GENERATOR FIELD CONTROL
GLOVE BOX LAMP AND SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 M11 20PK/LB COURTESY LAMP GROUND
2 F32 20RD/YL FUSED B(+)
HEADLAMP SWITCH - BLACK 8 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 Y163 20OR/WT HEADLAMP SWITCH ILLUMINATION CONTROL
4 Z214 20LB/BK GROUND
5 L39 20LB FOG LAMP RELAY OUTPUT
6 Y111 20VT/WT PANEL LAMPS DIMMER SIGNAL
7 Y167 20WT/DB HEADLAMP SWITCH RETURN
8 Y126 20VT/YL HEADLAMP SWITCH SIGNAL
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 63