DODGE RAM 2002 Service Repair Manual

CRANKSHAFT POSITION SENSOR (GAS 8.0L) - GRAY 3 WAY
CAV CIRCUIT FUNCTION
1 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
2 K4 20BK/LB SENSOR GROUND
3 K6 20VT/WT 5V SUPPLY
CRANKSHAFT POSITION SENSOR (GAS EXCEPT 8.0L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
2 K4 20BK/LB SENSOR GROUND
3 K6 20VT/WT 5V SUPPLY
CUMMINS BUS (DIESEL)-3WAY
CAV CIRCUIT FUNCTION
A K244 20YL/DB CUMMINS BUS (+)
B K246 20YL/DG CUMMINS BUS (-)
C Z11 14BK/WT GROUND
CUP HOLDER LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 E2 22OR PANEL LAMPS FEED
2 Z3 22BK/OR GROUND
DATA LINK CONNECTOR - BLACK 16 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 D1 18VT/BR CCD BUS (+)
4 Z2 20BK/LG GROUND
5 Z12 18BK/TN GROUND
6 D20 20DG SCI RECEIVE
7 D21 20PK/DB SCI TRANSMIT
8- -
9- -
10 - -
11 D2 18WT/BK CCD BUS (-)
12 - -
13 - -
8W - 80 - 36 8W-80 CONNECTOR PIN-OUTSBR/BE

DATA LINK CONNECTOR - BLACK 16 WAY
CAV CIRCUIT FUNCTION
14 D220 20WT/VT (DIESEL) SCI RECEIVE (PCM/DSL)
15 - -
16 M1 20PK FUSED B(+)
DAYTIME RUNNING LAMP MODULE - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 L10 18BR/LG FUSED IGNITION SWITCH OUTPUT (RUN)
3 G34 20RD/GY HIGH BEAM INDICATOR DRIVER
4 G11 20WT/LG PARK BRAKE SWITCH SENSE
5- -
6 L3 18RD/OR DIMMER SWITCH HIGH BEAM OUTPUT
7 Z1 18BK GROUND
8 L34 20RD/OR FUSED B(+)
9 L139 20VT FOG LAMP RELAY CONTROL
10 L4 18VT/WT DIMMER SWITCH LOW BEAM OUTPUT
DOME LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1- -
2 M2 20YL COURTESY LAMP DRIVER
3 M1 20PK FUSED B(+)
DRIVER AIRBAG - YELLOW 2 WAY
CAV CIRCUIT FUNCTION
1 R45 BK DRIVER AIRBAG LINE 1
2 R43 BK DRIVER AIRBAG LINE 2
DRIVER CYLINDER LOCK SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z2 20BK/LG GROUND
2 G73 20LG/OR CYLINDER LOCK SWITCH MUX
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 37

DRIVER DOOR AJAR SWITCH (BASE) - NATURAL 3 WAY
CAV CIRCUIT FUNCTION
1 Z2 18BK/LG GROUND
2 G75 18TN DRIVER DOOR AJAR SWITCH SENSE
3 M22 18WT DOME LAMP SWITCH SENSE
DRIVER DOOR AJAR SWITCH (PREMIUM) - NATURAL 2 WAY
CAV CIRCUIT FUNCTION
1 Z2 18BK/LG GROUND
2 G75 18TN DRIVER DOOR AJAR SWITCH SENSE
DRIVER DOOR LOCK MOTOR - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 P34 20PK/BK DOOR UNLOCK DRIVER
2 P33 20OR/BK DOOR LOCK DRIVER
DRIVER DOOR WINDOW/LOCK SWITCH - BLUE 11 WAY
CAV CIRCUIT FUNCTION
1 Q16 14BR/WT MASTER WINDOW SWITCH RIGHT FRONT UP
2 Q26 14VT/WT MASTER WINDOW SWITCH RIGHT FRONT DOWN
3 Z2 14BK/LG GROUND
4 Q21 16WT LEFT FRONT WINDOW DRIVER (DOWN)
5 F21 14TN FUSED IGNITION SWITCH OUTPUT (RUN)
6 Q11 16LB LEFT FRONT WINDOW DRIVER (UP)
7 P36 18PK/VT DRIVER DOOR UNLOCK SWITCH OUTPUT
8 P35 18OR/VT DRIVER DOOR LOCK SWITCH OUTPUT
9 Z2 18BK/LG GROUND
10 F35 18RD FUSED B(+)
11 - -
DRIVER HEATED SEAT CUSHION - BLUE 4 WAY
CAV CIRCUIT FUNCTION
1 P131 16RD/DG LEFT SEAT HEATER B(+) DRIVER
2 Z2 18BK/LG GROUND
3 P144 20BK/WT SEAT TEMPERATURE 5V SUPPLY
4 P141 20TN/LB LEFT SEAT TEMPERATURE SENSOR INPUT
8W - 80 - 38 8W-80 CONNECTOR PIN-OUTSBR/BE

DRIVER HEATED SEAT SWITCH - RED 6 WAY
CAV CIRCUIT FUNCTION
1 P137 20DG LEFT SEAT LOW HEAT LED DRIVER
2 E2 22OR PANEL LAMPS FEED
3 Z3 20BK/OR GROUND
4 F15 20DB FUSED IGNITION SWITCH OUTPUT (RUN)
5 P139 20WT LEFT SEAT HIGH HEAT LED DRIVER
6 P7 20LB/BK DRIVER HEATED SEAT SWITCH
DRIVER LUMBAR MOTOR-2WAY
CAV CIRCUIT FUNCTION
1 P106 16DG/WT LUMBAR MOTOR FORWARD
2 P107 16OR/BK LUMBAR MOTOR REARWARD
DRIVER POWER SEAT FRONT VERTICAL MOTOR (CLUB CAB) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A P21 16RD/LG LEFT POWER SEAT FRONT DOWN
B P19 16YL/LG LEFT POWER SEAT FRONT UP
DRIVER POWER SEAT FRONT VERTICAL MOTOR (STANDARD CAB)-2WAY
CAV CIRCUIT FUNCTION
1 P19 14YL/LG LEFT SEAT FRONT UP
2 P21 14RD/LG LEFT SEAT FRONT DOWN
DRIVER POWER SEAT HORIZONTAL MOTOR (CLUB CAB) - BLACK-2WAY
CAV CIRCUIT FUNCTION
A P17 16RD/LB LEFT SEAT HORIZONTAL REARWARD
B P15 16YL/LB LEFT SEAT HORIZONTAL FORWARD
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 39

DRIVER POWER SEAT HORIZONTAL MOTOR (STANDARD CAB)-2WAY
CAV CIRCUIT FUNCTION
1 P17 14DB/RD LEFT SEAT HORIZONTAL REARWARD
2 P15 14YL/LB LEFT SEAT HORIZONTAL FORWARD
DRIVER POWER SEAT REAR VERTICAL MOTOR (CLUB CAB) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A P11 16YL/WT LEFT SEAT REAR UP
B P13 16RD/WT LEFT SEAT REAR DOWN
DRIVER POWER SEAT REAR VERTICAL MOTOR (STANDARD CAB)-2WAY
CAV CIRCUIT FUNCTION
1 P11 14YL/WT LEFT SEAT REAR UP
2 P13 14RD/WT LEFT SEAT REAR DOWN
DRIVER POWER SEAT SWITCH (CLUB CAB) - 14 WAY
CAV CIRCUIT FUNCTION
A F37 16RD/LB FUSED B(+)
B Z2 16BK/LG GROUND
C P106 16DG/WT LUMBAR MOTOR FORWARD
D- -
E P13 16RD/WT LEFT SEAT REAR DOWN
F P107 16OR/BK LUMBAR DRIVER REARWARD
G Z2 16BK/LG GROUND
H F37 16RD/LB FUSED B(+)
I- -
J P11 16YL/WT LEFT SEAT REAR UP
K P17 16RD/LB LEFT SEAT HORIZONTAL REARWARD
L P15 16YL/LB LEFT SEAT HORIZONTAL FORWARD
M P21 16RD/LG LEFT SEAT FRONT DOWN
N P19 16YL/LG LEFT SEAT FRONT UP
8W - 80 - 40 8W-80 CONNECTOR PIN-OUTSBR/BE

DRIVER POWER SEAT SWITCH (STANDARD CAB) - 14 WAY
CAV CIRCUIT FUNCTION
A F37 14RD/LB FUSED B(+)
B Z3 14BK/OR GROUND
C- -
D- -
E P11 14YL/WT LEFT SEAT REAR UP
F- -
G- -
H- -
I- -
J P13 14RD/WT LEFT SEAT REAR DOWN
K P17 14DB/RD LEFT SEAT HORIZONTAL REARWARD
L P15 14YL/LB LEFT SEAT HORIZONTAL FORWARD
M P19 14YL/LG LEFT SEAT FRONT UP
N P21 14RD/LG LEFT SEAT FRONT DOWN
DRIVER POWER WINDOW MOTOR-2WAY
CAV CIRCUIT FUNCTION
1 Q11 16LB LEFT WINDOW DRIVER (UP)
2 Q21 16WT LEFT FRONT WINDOW DRIVER (DOWN)
ELECTRIC BRAKE PROVISION-4WAY
CAV CIRCUIT FUNCTION
1 A6 12RD/OR FUSED B(+)
2 B40 12LB TRAILER TOW BRAKE B(+)
3 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
4 Z3 18BK/OR GROUND
ENGINE CONTROL MODULE (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
1 H104 18BR/OR IDLE VALIDATION SWITCH NO. 1
2 K244 20YL/DB CUMMINS BUS (+)
3 K6 18VT/WT 5V SUPPLY
4 K14 18BK/DB SENSOR GROUND
5 F18 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START)
6 G60 18GY/BK ENGINE OIL PRESSURE SENSOR SIGNAL
7 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
8 G12 18GY/RD MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL
9- -
10 K7 18OR 5V SUPPLY
11 K104 18BK/LB SENSOR GROUND
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 41

ENGINE CONTROL MODULE (DIESEL) - 50 WAY
CAV CIRCUIT FUNCTION
12 K246 20YL/DG CUMMINS BUS (-)
13 K242 20WT DATA LINK (+) FUEL INJECTION PUMP
14 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
15 K135 18YL/WT TRANSFER PUMP SUPPLY
16 H105 18LG/DB IDLE VALIDATION SWITCH NO. 2
17 K124 18GY CAMSHAFT POSITION SENSOR SIGNAL
18 K48 18DG FUEL INJECTION PUMP SYNC SIGNAL
19 - -
20 - -
21 K1 18DG/RD WATER IN FUEL SENSOR SIGNAL
22 V37 18RD/LG SPEED CONTROL SWITCH SIGNAL
23 K240 20BK DATA LINK (-) FUEL INJECTOR PUMP
24 V32 18YL/RD BRAKE SWITCH SENSE
25 H102 18LB/BK ACCELERATOR PEDAL POSITION SENSOR SIGNAL
26 G113 18OR PTO SWITCH SENSE
27 - -
28 K22 18OR/DB ACCELERATOR PEDAL POSITION SENSOR SIGNAL
29 S21 18YL/BK AIR INTAKE HEATER RELAY NO. 1
30 Z12 18BK/TN GROUND
31 H101 18DB/WT ACCELERATOR PEDAL POSITION SENSOR SUPPLY
32 H103 18BK/YL ACCELERATOR PEDAL POSITION SENSOR GROUND
33 K45 18LB/RD FUEL SHUT-OFF SIGNAL
34 K44 18VT/OR LOW IDLE SELECT
35 K135 18YL/WT TRANSFER PUMP SUPPLY
36 K131 18BR/WT FUEL INJECTOR PUMP RELAY CONTROL
37 G85 18OR/BK WAIT-TO-START WARNING INDICATOR DRIVER
38 D21 18PK/DB SCI TRANSMIT
39 D20 18DG SCI RECEIVE
40 D2 18WT/BK CCD BUS (-)
41 D1 18VT/BR CCD BUS (+)
42 - -
43 G7 18WT/OR VEHICLE SPEED SENSOR SIGNAL
44 K243 20OR/BR DATA LINK SHIELD FUEL INJECTOR PUMP
45 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
46 - -
47 S22 18OR/BK AIR INTAKE HEATER RELAY CONTROL NO. 2
48 A14 18RD/WT FUSED B(+)
49 Z12 18BK/TN GROUND
50 A14 18RD/WT FUSED B(+)
ENGINE COOLANT TEMPERATURE SENSOR (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
A K104 18BK/LB SENSOR GROUND
B K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
8W - 80 - 42 8W-80 CONNECTOR PIN-OUTSBR/BE

ENGINE COOLANT TEMPERATURE SENSOR (GAS)-2WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
ENGINE OIL PRESSURE SENSOR (DIESEL) - GRAY 3 WAY
CAV CIRCUIT FUNCTION
A K7 18OR 5V SUPPLY
B K104 18BK/LB ENGINE OIL PRESSURE SENSOR RETURN
C G60 18GY/BK ENGINE OIL PRESSURE SENSOR SIGNAL
ENGINE OIL PRESSURE SENSOR (GAS)-2WAY
CAV CIRCUIT FUNCTION
1 K4 20BK/LB SENSOR GROUND
2 G60 18GY/OR ENGINE OIL PRESSURE SENSOR SIGNAL
EVAP/PURGE SOLENOID-2WAY
CAV CIRCUIT FUNCTION
1 K52 18PK/WT EVAPORATIVE EMISSION SOLENOID CONTROL
2 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
WINDSHIELD WASHER PUMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 V10 16BR WASHER SWITCH SENSE
2 Z1 20BK GROUND
FUEL HEATER (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
A Z11 14BK/TN GROUND
B A93 12RD/BK FUEL HEATER RELAY OUTPUT
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 43

FUEL INJECTION PUMP (DIESEL)-9WAY
CAV CIRCUIT FUNCTION
1 K240 20BK DATA LINK (-) FUEL INJECTION PUMP
2 K242 20WT DATA LINK (+) FUEL INJECTION PUMP
3- -
4 K44 18VT/OR LOW IDLE SELECT
5 K45 18LB/RD FUEL SHUT-OFF SIGNAL
6 Z12 14BK/TN GROUND
7 A40 14RD/LG FUEL PUMP RELAY OUTPUT
8 K48 18DG FUEL INJECTION PUMP SYNC SIGNAL
9- -
FUEL INJECTOR NO. 1 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K11 18WT/DB FUEL INJECTOR NO. 1 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 2 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K12 18TN FUEL INJECTOR NO. 2 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 3 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K13 18YL/WT FUEL INJECTOR NO. 3 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 4 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K14 18LB/BR FUEL INJECTOR NO. 4 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
8W - 80 - 44 8W-80 CONNECTOR PIN-OUTSBR/BE

FUEL INJECTOR NO. 5 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K38 18GY FUEL INJECTOR NO. 5 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 6 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K58 18BR/DB FUEL INJECTOR NO. 6 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 7 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K26 18VT/TN FUEL INJECTOR NO. 7 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 8 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K28 18GY/LB FUEL INJECTOR NO. 8 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
FUEL INJECTOR NO. 9 (8.0L) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 K115 18TN/BK FUEL INJECTOR NO. 9 DRIVER
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 45