fuse DODGE RAM 2002 Service Repair Manual

PASSENGER POWER SEAT FRONT VERTICAL MOTOR (CLUB CAB)-2WAY
CAV CIRCUIT FUNCTION
A P20 16RD/LG RIGHT SEAT FRONT DOWN
B P18 16YL/LG RIGHT SEAT FRONT UP
PASSENGER POWER SEAT HORIZONTAL MOTOR (CLUB CAB)-2WAY
CAV CIRCUIT FUNCTION
A P16 16LB RIGHT SEAT HORIZONTAL REARWARD
B P14 16YL/LB RIGHT SEAT HORIZONTAL FORWARD
PASSENGER POWER SEAT REAR VERTICAL MOTOR (CLUB CAB)-2WAY
CAV CIRCUIT FUNCTION
A P10 16YL/WT RIGHT SEAT REAR UP
B P12 16RD/WT8RIGHT SEAT REAR DOWN
PASSENGER POWER SEAT SWITCH (CLUB CAB) - 14 WAY
CAV CIRCUIT FUNCTION
N P20 16RD/LG RIGHT SEAT FRONT DOWN
M P18 16YL/LG RIGHT SEAT FRONT UP
L P14 16YL/LB RIGHT SEAT HORIZONTAL REARWARD
K P16 16LB RIGHT SEAT HORIZONTAL FORWARD
J P12 16RD/WT RIGHT SEAT REAR DOWN
I- -
H F37 16RD/LB FUSED B(+)
G Z2 16BK/LG GROUND
F P106 16DG/WT LUMBAR MOTOR FORWARD
E P10 16YL/WT RIGHT SEAT REAR UP
D- -
C P107 16OR/BK LUMBAR MOTOR REARWARD
B Z2 16BK/LG GROUND
A F37 16RD/LB FUSED B(+)
PASSENGER POWER WINDOW MOTOR-2WAY
CAV CIRCUIT FUNCTION
1 Q12 14BR RIGHT FRONT WINDOW DRIVER (UP)
2 Q22 14VT RIGHT FRONT WINDOW DRIVER (DOWN)
8W - 80 - 68 8W-80 CONNECTOR PIN-OUTSBR/BE

POWER MIRROR SWITCH-8WAY
CAV CIRCUIT FUNCTION
1 P71 22YL LEFT MIRROR UP DRIVER
2 P75 22DB/WT LEFT MIRROR LEFT DRIVER
3 P73 22YL/PK LEFT MIRROR COMMON DRIVER (RIGHT/DOWN)
4 P72 22YL/BK RIGHT MIRROR UP DRIVER
5 P74 22DB RIGHT MIRROR LEFT DRIVER
6 P70 22WT RIGHT MIRROR COMMON DRIVER (RIGHT/DOWN)
7 M1 22PK FUSED B(+)
8 Z2 20BK/LG GROUND
POWER OUTLET-3WAY
CAV CIRCUIT FUNCTION
1 A12 16RD/TN OUTLET FEED
2- -
3 Z3 16BK/OR GROUND
POWERTRAIN CONTROL MODULE C1 (DIESEL) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1- -
2 F18 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START)
3- -
4 K4 18BK/LB SENSOR GROUND
5- -
6 T41 18BK/WT (A/T) PARK/NEUTRAL POSITION SWITCH SENSE
7- -
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9- -
10 - -
11 - -
12 - -
13 - -
14 - -
15 - -
16 - -
17 - -
18 - -
19 - -
20 - -
21 - -
22 A14 14RD/WT FUSED B(+)
23 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
24 - -
25 - -
26 - -
27 - -
28 - -
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 69

POWERTRAIN CONTROL MODULE C1 (DIESEL) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
29 - -
30 - -
31 Z12 14BK/TN GROUND
32 Z12 14BK/TN GROUND
POWERTRAIN CONTROL MODULE C1 (GAS)- BLACK 32 WAY
CAV CIRCUIT FUNCTION
1 K32 18YL/GY(8.0L) IGNITION COIL NO. 4 DRIVER
2 F18 18LG/BK FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K18 18RD/BK(8.0L) IGNITION COIL NO. 3 DRIVER
4 K4 18BK/LB SENSOR GROUND
5 K43 18DG/GY(8.0L) IGNITION COIL NO. 5 DRIVER
6 T41 18BK/WT (A/T) PARK/NEUTRAL POSITION SWITCH SENSE
7 K19 18BK/GY IGNITION COIL NO.1
7 K19 18BK/GY(5.9L) IGNITION COIL NO. 1 DRIVER
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9 K17 18DB/WT(8.0L) IGNITION COIL NO. 2 DRIVER
10 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
11 K40 18BR/WT IDLE AIR CONTROL NO. 3 DRIVER
12 - -
13 G113 18OR PTO SWITCH SENSE
14 - -
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
17 K6 18VT/WT 5V SUPPLY
18 K44 18TN/YL CAMSHAFT POSITION SENSOR SIGNAL
19 K39 18GY/RD IDLE AIR CONTROL NO. 1 DRIVER
20 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
21 - -
22 A14 16RD/WT FUSED B(+)
23 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
24 K41 18BK/DG(5.9L/8.0L) OXYGEN SENSOR 1/1 SIGNAL
24 K141 18TN/WT(CALIFORNIA) OXYGEN SENSOR 1/1 SIGNAL
25 K341 18OR/BK(5.9L)(CALIFORNIA) OXYGEN SENSOR 1/2 SIGNAL
25 K341 18OR/BK(A/T)(CALIFORNIA) OXYGEN SENSOR 1/3 SIGNAL
26 K241 18LG/RD(CALIFORNIA) OXYGEN SENSOR 2/1 SIGNAL
26 K241 18LG/RD(8.0L/5.9L) OXYGEN SENSOR 2/1 SIGNAL
27 K1 18DG/RD MAP SENSOR SIGNAL
28 - -
29 K141 18TN/WT(8.0L)(A/T)(CALIFORNIA) OXYGEN SENSOR 1/2 SIGNAL
29 K441 18OR/TN(5.9L)(CALIFORNIA) OXYGEN SENSOR 2/2 SIGNAL
30 - -
31 Z12 14BK/TN GROUND
32 Z12 14BK/TN GROUND
A24 K141 18TN/WT(5.9L) OXYGEN SENSOR 1/1 SIGNAL
B24 K141 18TN/WT(5.9L) OXYGEN SENSOR 1/1 SIGNAL
8W - 80 - 70 8W-80 CONNECTOR PIN-OUTSBR/BE

RADIO C1 - GRAY 7 WAY
CAV CIRCUIT FUNCTION
1- -
2 X55 18BR/RD LEFT FRONT DOOR SPEAKER (-)
3 X56 18DB/RD RIGHT FRONT DOOR SPEAKER (-)
4 E17 18YL/BK DAY BRIGHTNESS SENSE
5 E2 22OR PANEL LAMPS FEED
6 X12 16RD/WT FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
7 M1 22PK FUSED B(+)
RADIO C2 - BLACK 7 WAY
CAV CIRCUIT FUNCTION
1 X16 22LG ANTENNA RELAY OUTPUT
2 X51 18BR/YL LEFT REAR SPEAKER (+)
3 X52 18DB/WT RIGHT REAR SPEAKER (+)
4 X53 18DG LEFT FRONT DOOR SPEAKER (+)
5 X54 18VT RIGHT FRONT DOOR SPEAKER (+)
6 X57 18BR/LB LEFT REAR SPEAKER (-)
7 X58 18DB/OR RIGHT REAR SPEAKER (-)
RADIO C3-2WAY
CAV CIRCUIT FUNCTION
1 D1 20VT/BR CCD BUS (+)
2 D2 20WT/BK CCD BUS (-)
RADIO CHOKE RELAY - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 X60 16DG/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
2 X13 16BK/RD RADIO CHOKE RELAY OUTPUT
3 X16 22LG ANTENNA RELAY OUTPUT
4 Z9 16BK/VT GROUND
REAR WHEEL SPEED SENSOR (ABS)-2WAY
CAV CIRCUIT FUNCTION
1 B114 20WT/VT REAR WHEEL SPEED SENSOR (-)
2 B113 20RD/VT REAR WHEEL SPEED SENSOR (+)
8W - 80 - 74 8W-80 CONNECTOR PIN-OUTSBR/BE

RIGHT BACK-UP LAMP - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 Z13 18BK GROUND
2 L1 18VT/BK BACK-UP LAMP FEED
RIGHT FOG LAMP - WHITE 2 WAY
CAV CIRCUIT FUNCTION
A L34 20RD/OR FUSED B(+)
B L39 20LB FOG LAMP SWITCH OUTPUT
RIGHT FRONT DOOR SPEAKER (PREMIUM) - 10 WAY
CAV CIRCUIT FUNCTION
1 X82 20LB/RD AMPLIFIED HIGH RIGHT FRONT DOOR SPEAKER (+)
2 X80 20LB/BK AMPLIFIED HIGH RIGHT FRONT DOOR SPEAKER (-)
3 X54 18VT RIGHT FRONT SPEAKER (+)
4 X56 18DB/RD RIGHT FRONT SPEAKER (-)
5 X92 18TN/BK AMPLIFIED LOW RIGHT REAR SPEAKER (-)
6 X94 18TN/VT AMPLIFIED LOW RIGHT REAR SPEAKER (+)
7 X13 16BK/RD RADIO CHOKE RELAY OUTPUT
8 Z9 16BK/VT GROUND
9 X52 18DB/WT RIGHT REAR SPEAKER (+)
10 X58 18DB/OR RIGHT REAR SPEAKER (-)
RIGHT FRONT DOOR SPEAKER (STANDARD)-2WAY
CAV CIRCUIT FUNCTION
A X56 20DB/RD RIGHT FRONT SPEAKER (-)
B X54 20VT RIGHT FRONT SPEAKER (+)
RIGHT FRONT FENDER LAMP (DUAL REAR WHEELS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL HEADLAMP SWITCH OUTPUT
2 Z13 18BK GROUND
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 75

RIGHT FRONT WHEEL SPEED SENSOR (ABS) - GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 B6 20WT/DB RIGHT FRONT WHEEL SPEED SENSOR (-)
2 B7 20WT RIGHT FRONT WHEEL SPEED SENSOR (+)
RIGHT HEADLAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
A L45 18PK/RD FUSED B(+)
B- -
C L33 18LG/BR HIGH BEAM HEADLAMP DRIVER
RIGHT LICENSE LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL PARK LAMP RELAY OUTPUT
2 Z13 18BK GROUND
RIGHT OUTBOARD CLEARANCE LAMP-2WAY
CAV CIRCUIT FUNCTION
1 L7 18BK/YL HEADLAMP SWITCH OUTPUT
2 Z4 18BK GROUND
RIGHT OUTBOARD HEADLAMP-3WAY
CAV CIRCUIT FUNCTION
C L3 16RD/OR DIMMER SWITCH HIGH BEAM OUTPUT
B L44 18VT/RD (QUAD HEADLAMP) FUSED B(+)
B L4 16VT/WT DIMMER SWITCH LOW BEAM OUTPUT
A L44 18VT/RD FUSED B(+)
A L4 16VT/WT (QUAD HEADLAMP) DIMMER SWITCH LOW BEAM OUTPUT
8W - 80 - 76 8W-80 CONNECTOR PIN-OUTSBR/BE

RIGHT TWEETER (PREMIUM)-2WAY
CAV CIRCUIT FUNCTION
1 X82 20LB/RD AMPLIFIED HIGH RIGHT FRONT SPEAKER (+)
2 X80 20LB/BK AMPLIFIED HIGH RIGHT FRONT SPEAKER (-)
RIGHT VISOR/VANITY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
A M1 20PK FUSED B(+)
B Z4 20BK GROUND
SEAT BELT SWITCH (CLUB CAB)-2WAY
CAV CIRCUIT FUNCTION
1 Z2 20BK/LG GROUND
2 G10 22LG/RD (HEATED SEATS) SEAT BELT SWITCH SENSE
2 G10 20LG/RD (MANUAL NON-HEATED
SEATS)SEAT BELT SWITCH SENSE
SEAT BELT SWITCH (STANDARD CAB) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z2 20BK/LG GROUND
2 G10 20LG/RD SEAT BELT SWITCH SENSE
SEAT HEAT INTERFACE MODULE - 14 WAY
CAV CIRCUIT FUNCTION
1 P7 20LB/BK DRIVER HEATED SEAT SWITCH
2 P144 20BK/WT SEAT TEMPERATURE 5V SUPPLY
3 P130 16TN RIGHT SEAT HEATER B(+) DRIVER
4 F235 16RD B(+) TO HEATED SEAT MODULE
5 P131 16RD/DG LEFT SEAT HEATER B(+) DRIVER
6 F235 16RD B(+) TO HEATED SEAT MODULE
7 P142 22DB RIGHT SEAT TEMPERATURE SENSOR INPUT
8 P141 20TN/LB LEFT SEAT TEMPERATURE SENSOR INPUT
9 P8 20LB/WT PASSENGER HEATED SEAT SWITCH
10 P138 20VT/LG RIGHT SEAT LOW HEAT LED DRIVER
11 P140 20VT/BK RIGHT SEAT HIGH HEAT LED DRIVER
12 P137 20DG LEFT SEAT LOW HEAT LED DRIVER
13 Z2 18BK/LG GROUND
14 P139 20WT LEFT SEAT HIGH HEAT LED DRIVER
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 79

SPEED CONTROL SERVO - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 V36 20TN/RD SPEED CONTROL VACUUM SOLENOID CONTROL
2 V35 20LG/RD SPEED CONTROL VENT SOLENOID CONTROL
3 V30 20DB/RD SPEED CONTROL BRAKE SWITCH OUTPUT
4 Z1 20BK GROUND
TAILGATE LAMP (DUAL REAR WHEELS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z13 18BK GROUND
2 L7 18BK/YL HEADLAMP SWITCH OUTPUT
THROTTLE POSITION SENSOR (GAS)-3WAY
CAV CIRCUIT FUNCTION
1 K6 20VT/WT 5V OUTPUT
2 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
3 K4 20BK/LB SENSOR GROUND
TRAILER TOW CONNECTOR - 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L62 16BR/RD RIGHT TURN SIGNAL
3 L1 18VT/BK BACK-UP LAMP FEED
4 A6 14RD/OR FUSED B(+)
5 L76 14BK/OR TRAILER TOW RELAY OUTPUT
6- -
7 B40 14LB TRAILER TOW BRAKE B(+)
8 Z13 14BK GROUND
9 Z13 14BK GROUND
10 L63 16DG/RD LEFT TURN SIGNAL
TRANSMISSION SOLENOID ASSEMBLY-8WAY
CAV CIRCUIT FUNCTION
1 T16 18RD TRANSMISSION CONTROL RELAY OUTPUT
2 K7 18OR 5V SUPPLY
3 K4 18BK/LB SENSOR GROUND
4 T25 18LG/WT GOVERNOR PRESSURE SENSOR SIGNAL
5 K88 18VT/WT GOVERNOR PRESSURE SOLENOID CONTROL
6 T60 18BR 3-4 SHIFT SOLENOID CONTROL
7 K54 18OR/BK TORQUE CONVERTER CLUTCH SOLENOID CONTROL
8 T54 18VT TRANSMISSION TEMPERATURE SENSOR SIGNAL
8W - 80 - 80 8W-80 CONNECTOR PIN-OUTSBR/BE

UNDERHOOD LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 M1 20PK FUSED B(+)
WASHER FLUID LEVEL SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G29 18BK/WT WASHER FLUID SWITCH SENSE
2 Z1 18BK GROUND
WATER IN FUEL SENSOR (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
A K104 18BK/LB SENSOR GROUND
B K1 18DG/RD WATER IN FUEL SENSOR SIGNAL
WIPER MOTOR-4WAY
CAV CIRCUIT FUNCTION
1 V4 16RD/YL WIPER SWITCH HIGH SPEED OUTPUT
2 V5 16DG WIPER PARK SWITCH SENSE
3 V6 16DB FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
4 V3 16BR/WT LOW SPEED WIPER SWITCH OUTPUT
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 81

8W-97 POWER DISTRIBUTION
TABLE OF CONTENTS
page page
POWER DISTRIBUTION
DESCRIPTION..........................1
OPERATION............................1
SPECIAL TOOLS
POWER DISTRIBUTION SYSTEMS.........2
CIGAR LIGHTER OUTLET
DESCRIPTION..........................2
OPERATION............................2
DIAGNOSIS AND TESTING - CIGAR LIGHTER
OUTLET.............................2
REMOVAL.............................3
INSTALLATION..........................4
CIRCUIT BREAKER
DESCRIPTION..........................4
DIAGNOSIS AND TESTING - CIRCUIT
BREAKER............................4
GENERATOR CARTRIDGE FUSE
DESCRIPTION..........................4
OPERATION............................4
REMOVAL.............................4
INSTALLATION..........................4
IOD FUSE
DESCRIPTION..........................5
OPERATION............................5
REMOVAL.............................6
INSTALLATION..........................6
JUNCTION BLOCK
DESCRIPTION..........................6
OPERATION............................7
DIAGNOSIS AND TESTING - JUNCTION
BLOCK..............................7
REMOVAL.............................7
INSTALLATION..........................8POWER DISTRIBUTION CENTER
DESCRIPTION..........................8
OPERATION............................8
REMOVAL.............................8
INSTALLATION.........................10
POWER OUTLET
DESCRIPTION.........................10
OPERATION...........................10
DIAGNOSIS AND TESTING - POWER OUTLET . 10
REMOVAL.............................11
INSTALLATION.........................11
HORN RELAY
DESCRIPTION.........................12
DIAGNOSIS AND TESTING - HORN RELAY . . . 12
REMOVAL.............................12
INSTALLATION.........................12
HEADLAMP RELAY
DESCRIPTION.........................13
REMOVAL.............................13
INSTALLATION.........................13
MICRO-RELAY
DESCRIPTION.........................13
OPERATION...........................14
DIAGNOSIS AND TESTING - MICRO-RELAY . . 14
REMOVAL.............................14
INSTALLATION.........................14
RELAY
DESCRIPTION.........................14
OPERATION...........................14
DIAGNOSIS AND TESTING - RELAY.........15
REMOVAL.............................15
INSTALLATION.........................15
POWER DISTRIBUTION
DESCRIPTION
This group covers the various standard and
optional power distribution components used on this
model. The power distribution system for this vehicle
consists of the following components:
²Power Distribution Center (PDC)
²Junction Block (JB).
The power distribution system also incorporates
various types of circuit control and protection fea-
tures, including:
²Automatic resetting circuit breakers
²Blade-type fuses²Cartridge fuses
²Circuit splice blocks
²Flashers
²Relays.
Following are general descriptions of the major
components in the power distribution system. See the
owner's manual in the vehicle glove box for more
information on the features and use of all of the
power distribution system components. Refer toWir-
ing Diagramsfor complete circuit diagrams for the
various power distribution system components.
OPERATION
The power distribution system for this vehicle is
designed to provide safe, reliable, and centralized dis-
BR/BE8W-97 POWER DISTRIBUTION 8W - 97 - 1