2002 DODGE RAM 4WD

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Page 376 of 2255

DODGE RAM 2002 Service Repair Manual DIAGNOSIS AND TESTING - CCD DATA BUS
CCD BUS FAILURE
The CCD data bus can be monitored using the
DRBIIItscan tool. However, it is possible for the
data bus to pass all tests since the voltage parame-

DIAGNOSIS AND TESTING - CCD DATA BUS
CCD BUS FAILURE
The CCD data bus can be monitored using the
DRBIIItscan tool. However, it is possible for the
data bus to pass all tests since the voltage parame-
ters will be in ªrangeª and false signals are being
sent. There are essentially 12 ªhard failuresª that
can occur with the CCD data bus:
²Bus Shorted to Battery
²Bus Shorted to 5 Volts
²Bus Shorted to Ground
²Bus (+) Shorted to Bus (±)
²Bus (±) and Bus (+) Open
²Bus (+) Open
²Bus (±) Open
²No Bus Bias
²Bus Bias Level Too High
²Bus Bias Level Too Low
²No Bus Termination
²Not Receiving Bus Messages Correctly
Refer to the appropriate diagnostic information for
details on how to diagnose these faults using a
DRBIIItscan tool.
BUS FAILURE VISUAL SYMPTOM DIAGNOSIS
The following visible symptoms or customer com-
plaints, alone or in combination, may indicate a CCD
data bus failure:
²Airbag Indicator and Malfunction Indicator
Lamp (MIL) Illuminated
²Instrument Cluster Gauges (All) Inoperative
²No Compass Mini-Trip Computer (CMTC) Oper-
ation (if equipped)
CONTROLLER ANTILOCK
BRAKE
DESCRIPTION
The Controller Antilock Brakes (CAB) is a micro-
processor which handles testing, monitoring and con-
trolling the ABS brake system operation (Fig. 10).
The CAB functions are:
²Perform self-test diagnostics.
²Monitor the RWAL brake system for proper oper-
ation.
²Control the RWAL valve solenoids.
NOTE: If the CAB needs to be replaced, the rear
axle type and tire revolutions per mile must be pro-
gramed into the new CAB. For axle type refer to
Group 3 Differential and Driveline. For tire revolu-
tions per mile,(Refer to 22 - TIRES/WHEELS/TIRES -
SPECIFICATIONS) . To program the CAB refer to the
Chassis Diagnostic Manual.
OPERATION
SYSTEM SELF-TEST
When the ignition switch is turned-on the micro-
processor RAM and ROM are tested. If an error
occurs during the test, a DTC will be set into the
RAM memory. However it is possible the DTC will
not be stored in memory if the error has occurred in
the RAM module were the DTC's are stored. Also it
is possible a DTC may not be stored if the error has
occurred in the ROM which signals the RAM to store
the DTC.
CAB INPUTS
The CAB continuously monitors the speed of the
differential ring gear by monitoring signals generated
by the rear wheel speed sensor. The CAB determines
a wheel locking tendency when it recognizes the ring
gear is decelerating too rapidly. The CAB monitors
the following inputs to determine when a wheel lock-
ing tendency may exists:
²Rear Wheel Speed Sensor
²Brake Lamp Switch
²Brake Warning Lamp Switch
²Reset Switch
²4WD Switch (If equipped)
CAB OUTPUTS
The CAB controls the following outputs for antilock
braking and brake warning information:
²RWAL Valve
²ABS Warning Lamp
²Brake Warning Lamp
REMOVAL
(1) Disconnect battery negative cable.
Fig. 10 RWAL CAB
1-RWALCAB
BR/BEELECTRONIC CONTROL MODULES 8E - 11
COMMUNICATION (Continued)

Page 507 of 2255

DODGE RAM 2002 Service Repair Manual overlay causes the ªMAINT REQDº text to appear in
amber through the translucent outer layer of the
overlay when the indicator is illuminated from
behind by a Light Emitting Diode (LED) soldered
onto

overlay causes the ªMAINT REQDº text to appear in
amber through the translucent outer layer of the
overlay when the indicator is illuminated from
behind by a Light Emitting Diode (LED) soldered
onto the instrument cluster electronic circuit board.
The SRI is serviced as a unit with the instrument
cluster.
OPERATION
The Service Reminder Indicator (SRI) gives an
indication to the vehicle operator when engine emis-
sions maintenance procedures should be performed.
This indicator is controlled by a transistor on the
instrument cluster circuit board based upon the clus-
ter programming and electronic messages received by
the cluster from the Powertrain Control Module
(PCM) over the Chrysler Collision Detection (CCD)
data bus. The SRI Light Emitting Diode (LED)
receives battery current on the instrument cluster
electronic circuit board through the fused ignition
switch output (st-run) circuit whenever the ignition
switch is in the On or Start positions; therefore, the
LED will always be off when the ignition switch is in
any position except On or Start. The LED only illu-
minates when it is provided a path to ground by the
instrument cluster transistor. The instrument cluster
will turn on the SRI for the following reasons:
²Bulb Test- Each time the ignition switch is
turned to the On position the SRI is illuminated for
about two seconds as a bulb test.
²Service Required Lamp-On Message- Each
time the cluster receives a service required lamp-on
message from the PCM indicating that an emissions
maintenance interval has been reached, the SRI will
be illuminated. The indicator remains illuminated
until the cluster receives a service required lamp-off
message from the PCM, or until the ignition switch
is turned to the Off position, whichever occurs first.
²Actuator Test- Each time the cluster is put
through the actuator test, the SRI will be turned on
during the bulb check portion of the test to confirm
the functionality of the LED and the cluster control
circuitry.
The PCM continually monitors the vehicle speed
sensor to determine the distance the vehicle has been
driven, then sends the proper messages to the instru-
ment cluster. Once the SRI has been illuminated and
the required emissions maintenance procedures have
been completed, the PCM must be reset using a
DRBIIItscan tool before it will send the proper ser-
vice required lamp-off message to the instrument
cluster. Refer to the appropriate diagnostic informa-
tion. For further diagnosis of the SRI or the instru-
ment cluster circuitry that controls the LED, (Refer
to 8 - ELECTRICAL/INSTRUMENT CLUSTER -
DIAGNOSIS AND TESTING). For proper diagnosisof the PCM, the CCD data bus, or the message
inputs to the instrument cluster that control the SRI,
a DRBIIItscan tool is required. Refer to the appro-
priate diagnostic information.
SHIFT INDICATOR (TRANSFER
CASE)
DESCRIPTION
A four-wheel drive indicator is standard equipment
on all instrument clusters. However, on vehicles not
equipped with the optional four-wheel drive system,
this indicator is mechanically disabled. The four-
wheel drive indicator is located near the lower edge
of the instrument cluster overlay, to the right of cen-
ter. The four-wheel drive indicator consists of a sten-
cilled cutout of the text ª4WDº in the opaque layer of
the instrument cluster overlay. The dark outer layer
of the overlay prevents the indicator from being
clearly visible when it is not illuminated. An amber
lens behind the cutout in the opaque layer of the
overlay causes the ª4WDº text to appear in amber
through the translucent outer layer of the overlay
when the indicator is illuminated from behind by a
Light Emitting Diode (LED) soldered onto the instru-
ment cluster electronic circuit board. The four-wheel
drive indicator is serviced as a unit with the instru-
ment cluster.
OPERATION
The four-wheel drive indicator lamp gives an indi-
cation to the vehicle operator that a four-wheel drive
operating mode is engaged. The indicator will be illu-
minated when either high range (4H) or low range
(4L) have been selected with the transfer case shift
lever. This indicator is controlled by a transistor on
the instrument cluster circuit board based upon the
cluster programming, and a hard wired input from
the four-wheel drive switch on the front axle discon-
nect housing. The four-wheel drive indicator Light
Emitting Diode (LED) receives battery current on the
instrument cluster electronic circuit board through
the fused ignition switch output (st-run) circuit
whenever the ignition switch is in the On or Start
positions; therefore, the lamp will always be off when
the ignition switch is in any position except On or
Start. The LED only illuminates when it is switched
to ground by the instrument cluster transistor.
The four-wheel drive switch is connected in series
between ground and the four-wheel drive switch
sense input to the instrument cluster. For further
information on the transfer case and the transfer
case operating ranges, (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/TRANSFER CASE - OPERA-
TION. For further information on the front axle
8J - 28 INSTRUMENT CLUSTERBR/BE
SERVICE REMINDER INDICATOR (Continued)

Page 508 of 2255

DODGE RAM 2002 Service Repair Manual disconnect mechanism, (Refer to 3 - DIFFERENTIAL
& DRIVELINE/FRONT AXLE/AXLE VACUUM
MOTOR - OPERATION). The four-wheel drive switch
input to the instrument cluster circuitry can be diag-
nosed using c

disconnect mechanism, (Refer to 3 - DIFFERENTIAL
& DRIVELINE/FRONT AXLE/AXLE VACUUM
MOTOR - OPERATION). The four-wheel drive switch
input to the instrument cluster circuitry can be diag-
nosed using conventional diagnostic tools and meth-
ods.
DIAGNOSIS AND TESTING - FOUR-WHEEL
DRIVE INDICATOR
The diagnosis found here addresses an inoperative
four-wheel drive indicator condition. If the problem
being diagnosed is related to indicator accuracy, be
certain to confirm that the problem is with the indi-
cator and not with a damaged or inoperative front
axle disconnect mechanism. (Refer to 3 - DIFFEREN-
TIAL & DRIVELINE/FRONT AXLE/AXLE VACUUM
MOTOR - DIAGNOSIS AND TESTING). If no front
axle disconnect problem is found, the following proce-
dure will help locate a short or open in the four-
wheel drive switch input to the instrument cluster.
Refer to the appropriate wiring information. The wir-
ing information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
INDICATOR DOES NOT ILLUMINATE WITH FOUR-WHEEL
DRIVE MODE SELECTED
(1) Disconnect and isolate the battery negative
cable. Disconnect the engine wire harness connector
for the four-wheel drive switch from the switch con-
nector receptacle. Check for continuity between the
ground circuit cavity of the engine wire harness con-
nector for the four-wheel drive switch and a good
ground. There should be continuity. If OK, go to Step
2. If not OK, repair the open ground circuit to ground
(G100) as required.
(2) Reconnect the battery negative cable. Turn the
ignition switch to the On position. Install a jumper
wire between the 4WD switch sense circuit cavity ofthe engine wire harness connector for the four-wheel
drive switch and a good ground. The four-wheel drive
indicator should light. If OK, replace the faulty four-
wheel drive switch. If not OK, go to Step 3.
(3) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Remove the instrument cluster from the instrument
panel. Check for continuity between the 4WD switch
sense circuit cavities of the instrument panel wire
harness connector (Connector C2) for the instrument
cluster and the engine wire harness connector for the
four-wheel drive switch. There should be continuity.
If OK, replace the faulty instrument cluster. If not
OK, repair the open 4WD switch sense circuit
between the instrument cluster and the four-wheel
drive switch as required.
INDICATOR STAYS ILLUMINATED WITH FOUR-WHEEL DRIVE
MODE NOT SELECTED
(1) Disconnect and isolate the battery negative
cable. Disconnect the engine wire harness connector
for the four-wheel drive switch from the switch con-
nector receptacle. Check for continuity between the
ground circuit terminal and the 4WD switch sense
circuit terminal in the four-wheel drive switch con-
nector receptacle. There should be no continuity. If
OK, repair the shorted 4WD switch sense circuit
between the four-wheel drive switch and the instru-
ment cluster as required. If not OK, replace the
faulty four-wheel drive switch.
SPEEDOMETER
DESCRIPTION
A speedometer is standard equipment on all instru-
ment clusters. The speedometer is located just to the
right of the tachometer near the center of the instru-
ment cluster. The speedometer consists of a movable
gauge needle or pointer controlled by the instrument
cluster circuitry and a fixed 210 degree primary scale
on the gauge dial face that reads left-to-right either
from 0 to 120 mph, or from 0 to 200 km/h, depending
upon the market for which the vehicle is manufac-
tured. Each version also has a secondary inner scale
on the gauge dial face that provides the equivalent
opposite units from the primary scale. Text appearing
on the cluster overlay just below the hub of the
speedometer needle abbreviates the unit of measure
for the primary scale in all upper case letters (i.e.:
MPH or KM/H), followed by the unit of measure for
the secondary scale in all lower case letters (i.e.: mph
or km/h). The speedometer graphics are white (pri-
mary scale) and red (secondary scale) against a black
field, making them clearly visible within the instru-
ment cluster in daylight. When illuminated from
behind by the panel lamps dimmer controlled cluster
BR/BEINSTRUMENT CLUSTER 8J - 29
SHIFT INDICATOR (TRANSFER CASE) (Continued)

Page 678 of 2255

DODGE RAM 2002 Service Repair Manual 8W-02 COMPONENT INDEX
Component Page
4WD Switch.......................... 8W-31
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C- Heater Control..........

8W-02 COMPONENT INDEX
Component Page
4WD Switch.......................... 8W-31
A/C Compressor Clutch Relay............ 8W-42
A/C Compressor Clutch................. 8W-42
A/C- Heater Control.................... 8W-42
A/C Heater Temperature Select........... 8W-42
A/C High Pressure Switch............... 8W-42
A/C Low Pressure Switch................ 8W-42
Accelerator Pedal Position Sensor......... 8W-30
Aftermarket Center High Mounted Stop
Lamp............................. 8W-51
Aftermarket Trailer Tow Connector........ 8W-54
Airbag Control Module.................. 8W-43
Ambient Temperature Sensor............ 8W-49
Ash Receiver Lamp.................... 8W-44
Automatic Day/Night Mirror............. 8W-49
Automatic Shut Down Relay............. 8W-30
Auxiliary Battery...................... 8W-20
Back-Up Lamp Switch.................. 8W-51
Back-Up Lamp........................ 8W-51
Battery Temperature Sensor............. 8W-30
Battery............................. 8W-20
Blend Door Actuator................... 8W-42
Blower Motor Relay.................... 8W-42
Blower Motor Resistor Block............. 8W-42
Blower Motor......................... 8W-42
Brake Lamp Switch.................... 8W-51
Brake Pressure Switch............... 8W-34, 35
Bypass Jumper....................... 8W-21
Camshaft Position Sensor............... 8W-30
Capacitor......................... 8W-10, 30
Cargo Lamps........................ 8W-44
Center High Mounted Stop Lamps........ 8W-51
Center Identification Lamp.............. 8W-50
Central Timer Module.................. 8W-45
Cigar Lighter......................... 8W-41
Circuit Breakers...................... 8W-12
Clockspring.................. 8W-33, 41, 43, 47
Clutch Pedal Position Switch............. 8W-21
Combination Flasher................... 8W-52
Controller Antilock Brake............ 8W-34, 35
Crankshaft Position Sensor.............. 8W-30
Cummins Bus........................ 8W-18
Cup Holder Lamp..................... 8W-44
Data Link Connector................... 8W-18
Daytime Running Lamp Module.......... 8W-50
Dome Lamp.......................... 8W-44
Driver Airbag......................... 8W-43
Driver Cylinder Lock Switch............. 8W-39
Driver Door Ajar Switch................ 8W-45
Driver Door Lock Motor................. 8W-61
Driver Door Window/Lock Switch...... 8W-60, 61
Driver Heated Seat Cushion............. 8W-63Component Page
Driver Heated Seat Switch.............. 8W-63
Driver Lumbar Motor.................. 8W-63
Driver Power Seat Front Vertical Motor.... 8W-63
Driver Power Seat Horizontal Motor....... 8W-63
Driver Power Seat Rear Vertical Motor..... 8W-63
Driver Power Seat Switch............... 8W-63
Driver Power Window Motor............. 8W-60
Electric Brake Provision................ 8W-54
Engine Control Module................. 8W-30
Engine Coolant Temperature Sensor....... 8W-30
Engine Oil Pressure Sensor.............. 8W-30
Engine Starter Motor Relay.............. 8W-21
Engine Starter Motor................... 8W-21
EVAP/Purge Solenoid................... 8W-30
Fender Lamp......................... 8W-51
Fog Lamp Relay....................... 8W-50
Fog Lamp............................ 8W-50
Fuel Heater Relay..................... 8W-30
Fuel Heater........................ 8W-30-36
Fuel Injection Pump................... 8W-30
Fuel Injectors......................... 8W-30
Fuel Pump Module.................... 8W-30
Fuel Pump Relay...................... 8W-30
Fuel Tank Module..................... 8W-30
Fuel Transfer Pump.................... 8W-30
Fuses (JB)........................... 8W-12
Fuses (PDC).......................... 8W-10
Fusible Link....................... 8W-20, 30
Grounds............................. 8W-15
Generator............................ 8W-20
Glove Box Lamp And Switch............. 8W-44
Headlamp Beam Select Switch........... 8W-50
Headlamp Switch...................... 8W-50
Headlamp........................... 8W-50
Heated Mirror Relay................... 8W-62
Heated Mirror Switch.................. 8W-62
Heated Seat Relay..................... 8W-12
High Note Horn....................... 8W-41
Horn Relay.......................... 8W-41
Horn Switch.......................... 8W-41
Idle Air Control Motor.................. 8W-30
Ignition Coils......................... 8W-30
Ignition Switch....................... 8W-10
Instrument Cluster.................... 8W-40
Intake Air Heater Relays................ 8W-30
Intake Air Heater..................... 8W-30
Intake Air Temperature Sensor........... 8W-30
Intermittent Wiper Switch............... 8W-53
Joint Connectors....... 8W-10, 12, 15, 30, 34, 35,
40, 44, 45, 51, 53, 54, 70
Junction Block........................ 8W-12
Leak Detection Pump.................. 8W-30
BR/BE8W-02 COMPONENT INDEX 8W - 02 - 1

Page 936 of 2255

DODGE RAM 2002 Service Repair Manual 8W-80 CONNECTOR PIN-OUTS
Component Page
4WD Switch........................ 8W-80-4
A/C Compressor Clutch................ 8W-80-4
A/C Heater Control................... 8W-80-4
A/C Heater Temperature Se

8W-80 CONNECTOR PIN-OUTS
Component Page
4WD Switch........................ 8W-80-4
A/C Compressor Clutch................ 8W-80-4
A/C Heater Control................... 8W-80-4
A/C Heater Temperature Select......... 8W-80-4
A/C High Pressure Switch............. 8W-80-4
A/C Low Pressure Switch.............. 8W-80-5
Accelerator Pedal Position Sensor
(Diesel).......................... 8W-80-5
Aftermarket Trailer Tow Connector...... 8W-80-5
Airbag Control Module................ 8W-80-5
Ambient Temperature Sensor........... 8W-80-6
Ash Receiver Lamp................... 8W-80-6
Automatic Day/Night Mirror............ 8W-80-6
Back-Up Lamp Switch (M/T)........... 8W-80-6
Battery Temperature Sensor............ 8W-80-7
Blend Door Actuator.................. 8W-80-7
Blower Motor....................... 8W-80-7
Blower Motor Resistor Block............ 8W-80-7
Brake Lamp Switch.................. 8W-80-7
Brake Pressure Switch................ 8W-80-8
Bypass Jumper (A/T)................. 8W-80-8
C105.............................. 8W-80-8
C105.............................. 8W-80-8
C106.............................. 8W-80-8
C106.............................. 8W-80-8
C114 .............................. 8W-80-9
C114 .............................. 8W-80-9
C125 (Diesel)....................... 8W-80-9
C125 (Diesel)....................... 8W-80-9
C126 (Diesel)....................... 8W-80-10
C126 (Diesel)....................... 8W-80-10
C129............................. 8W-80-10
C129............................. 8W-80-11
C130 (Diesel)....................... 8W-80-11
C130 (Diesel) (In PDC)............... 8W-80-12
C130 (Gas)........................ 8W-80-13
C130 (Gas) (In PDC)................. 8W-80-14
C134............................. 8W-80-15
C134............................. 8W-80-17
C203............................. 8W-80-18
C203............................. 8W-80-19
C205............................. 8W-80-20
C205............................. 8W-80-20
C206 (Heated Seats)................. 8W-80-20
C206 (Heated Seats)................. 8W-80-21
C237............................. 8W-80-21
C237............................. 8W-80-21
C303............................. 8W-80-22
C303............................. 8W-80-22
C308............................. 8W-80-22
C308............................. 8W-80-22
C329 (Club Cab).................... 8W-80-22Component Page
C329 (Club Cab).................... 8W-80-23
C329 (Standard Cab)................ 8W-80-23
C329 (Standard Cab)................ 8W-80-23
C333 (Club Cab).................... 8W-80-23
C333 (Club Cab).................... 8W-80-23
C333 (Standard Cab)................ 8W-80-24
C333 (Standard Cab)................ 8W-80-24
C342............................. 8W-80-24
C342............................. 8W-80-24
C343............................. 8W-80-24
C343............................. 8W-80-24
C344 (Dual Rear Wheels)............. 8W-80-25
C344 (Dual Rear Wheels)............. 8W-80-25
C345............................. 8W-80-25
C345............................. 8W-80-25
C346............................. 8W-80-26
C346............................. 8W-80-26
C347............................. 8W-80-26
C347............................. 8W-80-27
C348............................. 8W-80-27
C348............................. 8W-80-28
C352............................. 8W-80-28
C352............................. 8W-80-28
C353............................. 8W-80-28
C353............................. 8W-80-28
C358............................. 8W-80-29
C358............................. 8W-80-29
C359 (Heated Seat).................. 8W-80-29
C359 (Heated Seat).................. 8W-80-29
C360 (Club Cab).................... 8W-80-30
C360 (Club Cab).................... 8W-80-30
C361............................. 8W-80-30
C361............................. 8W-80-30
C364............................. 8W-80-31
C364............................. 8W-80-31
C365 (Heated Seat).................. 8W-80-31
C365 (Heated Seat).................. 8W-80-31
Camshaft Position Sensor (8.0L Gas).... 8W-80-32
Camshaft Position Sensor (Diesel)...... 8W-80-32
Camshaft Position Sensor
(Gas Except 8.0L)................. 8W-80-32
Cargo Lamp No. 1................... 8W-80-32
Cargo Lamp No. 2................... 8W-80-32
Center High Mounted Stop Lamp No. 1 . . 8W-80-33
Center High Mounted Stop Lamp No. 2 . . 8W-80-33
Center Identification Lamp............ 8W-80-33
Central Timer Module C1............. 8W-80-33
Central Timer Module C2............. 8W-80-34
Cigar Lighter...................... 8W-80-34
Clockspring C1..................... 8W-80-34
Clockspring C2..................... 8W-80-34
Clockspring C3..................... 8W-80-35
BR/BE8W-80 CONNECTOR PIN-OUTS 8W - 80 - 1

Page 939 of 2255

DODGE RAM 2002 Service Repair Manual 4WD SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G107 18BK/GY 4WD SWITCH SENSE
2 Z1 18BK GROUND
A/C COMPRESSOR CLUTCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 C3 18DB/BK A/C COMPRESSOR CLUTCH RELAY OUTPUT

Page 970 of 2255

DODGE RAM 2002 Service Repair Manual CLOCKSPRING C3-4WAY
CAV CIRCUIT FUNCTION
A V37 22DG/RD SPEED CONTROL SWITCH SIGNAL
B Z2 22BK/LG GROUND
D X20 22RD/BK RADIO CONTROL MUX
C K4 22WT SENSOR GROUND
CLUTCH PEDAL POSITION SWITCH (M/T) - BLAC

Page 985 of 2255

DODGE RAM 2002 Service Repair Manual INSTRUMENT CLUSTER C2 - 10 WAY
CAV CIRCUIT FUNCTION
1 E2 22OR PANEL LAMPS FEED
2 G29 22BK/WT WASHER FLUID SWITCH SENSE
3 G10 22LG/RD SEAT BELT SWITCH SENSE
4- -
5 E17 18YL/BK DAY BRIGHTNESS SENSE
6 L6

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