DODGE RAM 2003 Service Repair Manual

CLEARANCE LAMP NO. 3 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLEARANCE LAMP NO. 4 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLEARANCE LAMP NO. 5 (HEAVY DUTY)-2WAY
CAV CIRCUIT FUNCTION
1 L7 20BK/YL HEADLAMP SWITCH OUTPUT
2 Z253 20BK/RD GROUND
CLOCKSPRING C1-6WAY
CAV CIRCUIT FUNCTION
1 Z5 20BK/LB GROUND
2 X20 20GY/WT RADIO CONTROL MUX
3 V38 20VT/OR (5.7L) S/C SWITCH SIGNAL NO.2
4 V37 20RD/LG SPEED CONTROL SWITCH SIGNAL
5 K4 20BK/LB SENSOR GROUND
6 X3 20BK/RD HORN SWITCH SENSE
CLOCKSPRING C2 - YELLOW 4 WAY
CAV CIRCUIT FUNCTION
1- -
2- -
3 R43 18BK/LB DRIVER SQUIB 1 LINE 1
4 R45 18DG/LB DRIVER SQUIB 1 LINE 2
8W - 80 - 44 8W-80 CONNECTOR PIN-OUTSDR

CLOCKSPRING C3 - BLACK 4 WAY
CAV CIRCUIT FUNCTION
B1 X3 20BK/RD HORN RELAY CONTROL
B2 K4 20BK/LB SENSOR GROUND
B3 V37 20RD/LG S/C SWITCH NO.1 SIGNAL
B4 V38 20VT/OR (ELECTRONIC
TRANSMISSION CONTROL)SPEED CONTROL RELAY CONTROL
CLOCKSPRING C4-2WAY
CAV CIRCUIT FUNCTION
1- -
2 Z374 20BK/WT GROUND
CLOCKSPRING C5 (REMOTE RADIO) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z5 22BK/LB GROUND
2 X20 22GY (WITHOUT ETC) RADIO CONTROL MUX
2 X20 22RD/BK (WITH ETC) RADIO CONTROL MUX
CLUTCH INTERLOCK BRAKE SWITCH - DK GREEN 2 WAY
CAV CIRCUIT FUNCTION
1 T24 20BR/YL PARK/NEUTRAL POSITION SWITCH SENSE (T41)
2 Z248 20BK GROUND
COIL ON PLUG NO. 1 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K91 18TN/RD COIL ON PLUG DRIVER NO. 1
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K91 18TN/RD (NGC) COIL CONTROL NO. 1
3- -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 45

COIL ON PLUG NO. 2 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K92 18TN/PK COIL ON PLUG DRIVER NO. 2
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K92 18TN/PK (NGC) COIL CONTROL NO. 2
3- -
COIL ON PLUG NO. 3 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K93 18TN/OR COIL ON PLUG DRIVER NO. 3
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K93 18TN/OR (NGC) COIL CONTROL NO. 3
3- -
COIL ON PLUG NO. 4 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K94 18TN/LG COIL ON PLUG DRIVER NO. 4
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K94 18TN/LG (NGC) COIL CONTROL NO. 4
3- -
COIL ON PLUG NO. 5 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K95 18TN/DG COIL ON PLUG DRIVER NO. 5
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K95 18TN/DG (NGC) COIL CONTROL NO. 5
3- -
8W - 80 - 46 8W-80 CONNECTOR PIN-OUTSDR

COIL ON PLUG NO. 6 (3.7L/4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K96 18TN/LB COIL ON PLUG DRIVER NO. 6
1 A142 16DG/OR (NGC) ASD RELAY OUTPUT
2 A142 16DG/OR AUTO SHUT DOWN RELAY OUTPUT
2 K96 18TN/LB (NGC) COIL CONTROL NO. 6
3- -
COIL ON PLUG NO. 7 (4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K97 18BR COIL CONTROL NO. 7
1 A142 16DG/OR (5.7L) ASD RELAY OUTPUT
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
2 K97 18BR (5.7L) COIL CONTROL NO. 7
3- -
COIL ON PLUG NO. 8 (4.7L/5.7L) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K98 18LB/RD COIL CONTROL NO. 8
1 A142 16DG/OR (5.7L) ASD RELAY OUTPUT
2 A142 16DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
2 K98 18LB/RD (5.7L) COIL CONTROL NO. 8
3- -
COMPASS/MINI-TRIP COMPUTER (EXCEPT BASE) - BLACK 6 WAY
CAV CIRCUIT FUNCTION
1- -
2 Y107 20VT/RD FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 Z104 20BK/OR GROUND
4 F32 20RD/YL FUSED B(+)
5 D25 20VT PCI BUS
6- -
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 47

CONDENSER FAN - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z212 16LG/BK GROUND
2 C23 16DG CONDENSER FAN RELAY OUTPUT
CONTROLLER ANTILOCK BRAKE C1 - BLACK 14 WAY
CAV CIRCUIT FUNCTION
1 B113 20RD/VT REAR WHEEL SPEED SENSOR (+)
2 B222 20DG/WT (EXCEPT 4 WHEEL
ABS)VEHICLE SPEED SIGNAL NO.2
3 D25 20VT/BK PCI BUS
4 A20 20RD/DB FUSED IGNITION SWITCH OUTPUT (RUN)
5- -
6 Z102 12BK/VT GROUND
7 A10 14RD/DG FUSED B(+)
8 B114 20WT/VT REAR WHEEL SPEED SENSOR (-)
9 K29 20WT/PK BRAKE SWITCH SENSE
10 - -
11 G9 20GY/BK BRAKE FLUID LEVEL SWITCH SENSE
12 G7 20WT/OR (EXCEPT 4.7L ABS/5.7L
ABS)VEHICLE SPEED SIGNAL NO.1
12 B22 20DG/YL (4.7L ABS/5.7 ABS) VEHICLE SPEED SIGNAL NO.1
13 Z101 12BK/PK (4 WHEEL ABS) GROUND
14 A10 14RD/DG (4 WHEEL ABS) FUSED B(+)
CONTROLLER ANTILOCK BRAKE C2 (ABS) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 B9 20RD LEFT FRONT WHEEL SPEED SENSOR (+)
2 B8 20RD/DB LEFT FRONT WHEEL SPEED SENSOR (-)
3 B6 20WT/DB RIGHT FRONT WHEEL SPEED SENSOR (-)
4 B7 20WT RIGHT FRONT WHEEL SPEED SENSOR (+)
8W - 80 - 48 8W-80 CONNECTOR PIN-OUTSDR

CRANKSHAFT POSITION SENSOR - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
1 K7 18OR (5.7L) 5 VOLT SUPPLY
1 K24 18GY/BK (4.7L/) CKP SIGNAL
2 K4 18BK/LB (3.7L/4.7L/5.7L) SENSOR GROUND
2 K4 20BK/LB (5.9L) SENSOR GROUND
3 K7 18OR (3.7L/4.7L) 5 VOLT SUPPLY
3 K24 18GY/BK (5.7L) CKP SIGNAL
3 K7 20OR (5.9L) 5 VOLT SUPPLY
CYLINDER LOCK SWITCH-DRIVER (PREMIUM) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G73 20LG/OR DRIVER CYLINDER LOCK SWITCH MUX
2 Z70 20BK/LG GROUND
CYLINDER LOCK SWITCH-PASSENGER (PREMIUM) - LT GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 G72 20DG/OR PASSENGER CYLINDER LOCK SWITCH MUX
2 Z69 20BK/LG GROUND
DATA LINK CONNECTOR - BLACK 16 WAY
CAV CIRCUIT FUNCTION
1- -
2 D25 20LB/VT PCI BUS
3- -
4 Z305 18BK/DG GROUND
5 Z306 18OR/BK GROUND
6- -
7 D21 18PK SCI TRANSMIT (PCM)
8- -
9 D6 18PK/LB SCI RECEIVE (TCM)
10 - -
11 - -
12 D20 20LG SCI RECEIVE (PCM)
13 - -
14 - -
15 D15 18WT/DG SCI TRANSMIT (TCM)
16 M1 18PK FUSED B(+)
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 49

DATA LINK CONNECTOR - ENGINE (DIESEL)-3WAY
CAV CIRCUIT FUNCTION
A D1 18VT/BR CCD BUS (+)
B D2 18WT/BK CCD BUS (-)
C Z11 14BK/WT GROUND
DOME LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1- -
2 M20 20BR COURTESY LAMP DRIVER
3 F32 18RD/YL FUSED B(+)
DOOR AJAR SWITCH-DRIVER (BASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G75 20TN DRIVER DOOR AJAR SWITCH SENSE
2 Z314 20BK/LG GROUND
DOOR AJAR SWITCH-LEFT REAR (BASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G77 20VT/OR LEFT REAR DOOR AJAR SWITCH SENSE
2 Z75 20BK GROUND
DOOR AJAR SWITCH-PASSENGER (BASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G74 20TN PASSENGER DOOR AJAR SWITCH SENSE
2 Z315 20BK/LG GROUND
8W - 80 - 50 8W-80 CONNECTOR PIN-OUTSDR

DOOR AJAR SWITCH-RIGHT REAR (BASE) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G76 20VT/OR RIGHT REAR DOOR AJAR SWITCH SENSE
2 Z74 20BK GROUND
DOOR LOCK MOTOR/AJAR SWITCH-DRIVER (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G75 20TN DRIVER DOOR AJAR SWITCH SENSE
2 Z314 20BK/LG GROUND
3 P55 18 DB DOOR UNLOCK DRIVER LEFT FRONT
4 Y157 18TN/PK DOOR LOCK DRIVER LEFT DOORS
DOOR LOCK MOTOR/AJAR SWITCH-LEFT REAR (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G77 20VT/OR LEFT REAR DOOR AJAR SWITCH SENSE
2 Z75 20BK GROUND
3 Y201 18TN/OR DOOR UNLOCK DRIVER LEFT REAR
4 Y157 18TN/PK DOOR LOCK DRIVER LEFT DOORS
DOOR LOCK MOTOR/AJAR SWITCH-PASSENGER (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G74 20TN/RD PASSENGER DOOR AJAR SWITCH SENSE
2 Z315 20BK/LG GROUND
3 Y156 18TN/WT DOOR UNLOCK DRIVER RIGHT DOORS
4 Y200 18TN/VT DOOR LOCK DRIVER RIGHT DOORS
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 51

DOOR LOCK MOTOR/AJAR SWITCH-RIGHT REAR (EXCEPT BASE) - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 G76 20VT/OR RIGHT REAR DOOR AJAR SWITCH SENSE
2 Z74 20BK GROUND
3 Y156 18TN/OR DOOR UNLOCK DRIVER RIGHT DOORS
4 Y200 18TN/PK DOOR LOCK DRIVER RIGHT DOORS
DOOR LOCK SWITCH-PASSENGER - WHITE 6 WAY
CAV CIRCUIT FUNCTION
1 P96 20WT/LG PASSENGER DOOR LOCK SWITCH MUX
2 Y107 20VT/RD FUSED IGNITION SWITCH OUTPUT (RUN-START)
3- -
4- -
5 Z74 20BK/LG GROUND
6- -
DOOR WINDOW/LOCK SWITCH - PASSENGER - BLUE 6 WAY
CAV CIRCUIT FUNCTION
1 Q12 14BR RIGHT FRONT WINDOW DRIVER (UP)
2 Q26 14VT/WT MASTER WINDOW SWITCH RIGHT FRONT (DOWN)
3- -
4 Q16 14BR/WT MASTER WINDOW SWITCH RIGHT FRONT (UP)
5 Q22 14VT RIGHT FRONT WINDOW DRIVER (DOWN)
6 Q1 14YL POWER WINDOW SWITCH FEED
DRIVER BLEND DOOR ACTUATOR (DUAL-ZONE)-2WAY
CAV CIRCUIT FUNCTION
1 C34 20DB/WT COMMON DOOR DRIVER
2 C62 20DB/PK BLEND DOOR DRIVER
8W - 80 - 52 8W-80 CONNECTOR PIN-OUTSDR

DRIVER DOOR MODULE C1 - BLUE 12 WAY
CAV CIRCUIT FUNCTION
1 Q28 14DG/WT RIGHT REAR WINDOW DRIVER (DOWN)
2 Q18 14GY/BK RIGHT REAR WINDOW DRIVER (UP)
3 Q16 14BR/WT MASTER WINDOW SWITCH RIGHT FRONT (UP)
4 Q17 14DB/WT LEFT REAR WINDOW DRIVER (UP)
5 Q11 14LB LEFT FRONT WINDOW DRIVER (UP)
6 Q26 14VT/WT MASTER WINDOW SWITCH RIGHT FRONT (DOWN)
7 P97 20WT/DG DRIVER DOOR LOCK SWITCH MUX
8 Z67 14BK GROUND
9 F21 14TN FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
10 Q27 14RD/BK LEFT REAR WINDOW DRIVER (DOWN)
11 Z75 20BK GROUND
12 Q21 14WT LEFT FRONT WINDOW DRIVER (DOWN)
DRIVER DOOR MODULE C2 - BLUE 8 WAY
CAV CIRCUIT FUNCTION
1 P71 20YL LEFT MIRROR UP DRIVER
2 P76 20OR/YL LEFT MIRROR COMMON DRIVER (RIGHT/DOWN)
3 F32 18RD/YL FUSED B(+)
4 P74 20DB RIGHT MIRROR LEFT DRIVER
5 Z239 20BK GROUND
6 P75 20DB/WT LEFT MIRROR LEFT DRIVER
7 P72 20YL/BK RIGHT MIRROR UP DRIVER
8 Q1 14YL POWER WINDOW SWITCH FEED
DRIVER HEATED SEAT CUSHION - DK GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 P141 18TN/LB DRIVER SEAT TEMPERATURE SENSOR INPUT
2 Z121 20BK/LG GROUND
3 P143 20BK/DG DRIVER SEAT TEMPERATURE 5 VOLT SUPPLY
4 P86 20PK/BK SEAT HEATER DRIVER
ELECTRIC BRAKE PROVISION - BLUE 4 WAY
CAV CIRCUIT FUNCTION
1 Y133 14RD/OR FUSED B(+)
2 B40 14LB TRAILER TOW BRAKE B(+)
3 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
4 Z255 18DG/BK GROUND
DR8W-80 CONNECTOR PIN-OUTS 8W - 80 - 53