Chrysler RG Voyager. Manual — part 721

CONDITION

POSSIBLE CAUSES

CORRECTION

ERRATIC POINTER
MOVEMENT.

1. ERRATIC MESSAGE
FROM ANOTHER
MODULE.

1.A. CHECK THE BCM USING A DRB III

T

SCAN

TOOL IF OK, GO TO STEP 1.B. IF NOT OK, REFER
TO THE PROPER BODY DIAGNOSTIC
PROCEDURES MANUAL TO REPAIR THE BCM.

1.B. CHECK THE PCM USING A DRB III

T

SCAN

TOOL. IF OK, GO TO STEP 1.C. IF NOT OK, REFER
TO THE PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO REPAIR THE PCM.

1.C. CHECK THE SPEED SIGNAL INPUT INTO THE
PCM. THE SPEED SIGNAL ORIGINATES FROM THE
TCM FOR VEHICLES WITH THE 4 SPEED
ELECTRONIC TRANSMISSIONS. CHECK
CONTINUITY FROM TCM TO PCM. IF OK, USE A
DRB III

T

SCAN TOOL TO CHECK TCM. REFER TO

THE PROPER TRANSMISSION DIAGNOSTIC
PROCEDURES MANUAL TO REPAIR THE TCM. IF
NOT OK, REPAIR WIRING.

2. INTERNAL CLUSTER
FAILURE.

2.A. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.

•

IF THE POINTER MOVES DURING TEST BUT

STILL APPEARS ERRATIC, THEN GO TO STEP 2.B.

2.B. REPLACE CLUSTER ASSEMBLY.

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INSTRUMENT CLUSTER

8J - 5

INSTRUMENT CLUSTER (Continued)

CONDITION

POSSIBLE CAUSES

CORRECTION

SPEEDOMETER
INACCURATE.

1. SPEEDOMETER OUT
OF CALIBRATION.

1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST.

•

IF SPEEDOMETER IS ACCURATE TO THE

CALIBRATION POINTS THEN LOOK FOR ANOTHER
POSSIBLE CAUSE OF INACCURACY.

•

IF SPEEDOMETER IS NOT ACCURATE TO THE

CALIBRATION POINTS, REPLACE CLUSTER
ASSEMBLY.

2. WRONG
SPEEDOMETER PINION
FOR TIRE SIZE.

2.A. IF VEHICLE HAS A 4 SPEED ELECTRONIC
TRANSMISSION GO TO STEP 2.C. OTHERWISE GO
TO STEP 2.B.

2.B. CHECK IF CORRECT SPEEDOMETER PINION
IS BEING USED WITH TIRES ON VEHICLE. REFER
TO TRANSMISSION FOR DIAGNOSIS AND TESTING.

•

IF THE INCORRECT PINION IS IN TRANSMISSION

THEN REPLACE WITH CORRECT PINION.

•

IF THE CORRECT PINION IS IN THE

TRANSMISSION, CHECK TIRE SIZE.

2.C. USE A DRB III

T

SCAN TOOL TO CHECK THE

TCM TO SEE IF THE CORRECT TIRE SIZE HAS
BEEN PROGRAMMED INTO THE TCM.

•

IF THE INCORRECT TIRE SIZE WAS SELECTED,

SELECT THE PROPER TIRE SIZE.

•

IF THE CORRECT TIRE SIZE WAS SELECTED,

CHECK SPEED SENSOR.

3. BAD SPEED SENSOR.

3. REFER TO TRANSMISSION, SPEED SENSOR,
DIAGNOSIS AND TESTING.

TACHOMETER DIAGNOSIS

CONDITION

POSSIBLE CAUSES

CORRECTION

NO POINTER
MOVEMENT.

1. INTERNAL
CLUSTER FAILURE.

1.A. PERFORM CLUSTER SELF-DIAGNOSTIC TEST AND
CHECK FOR FAULT CODES.

•

IF TACHOMETER POINTER MOVES TO CALIBRATION

POINTS DURING TEST, LOOK FOR ANOTHER POSSIBLE
CAUSE OF FAILURE.

•

IF THE POINTER DOESN’T MOVE DURING TEST,

CHECK FOR POWER AND GROUND TO THE MIC. IF
POWER AND GROUND ARE PRESENT GO TO STEP 1.B.

1.B. REPLACE CLUSTER. GO TO STEP 1.C.

2.

9

NO RPM

9

PCI BUS

MESSAGE OR

9

ZERO

RPM

9

PCI BUS

MESSAGE FROM
PCM.

2. CHECK THE PCM USING A DRB III

T

SCAN TOOL.

REFER TO THE PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE AND
REPAIR.

8J - 6

INSTRUMENT CLUSTER

RS

INSTRUMENT CLUSTER (Continued)

CONDITION

POSSIBLE CAUSES

CORRECTION

ERRATIC POINTER
MOVEMENT.

1. BAD PCI BUS
MESSAGE FROM
PCM.

1. CHECK THE PCM USING A DRB III

T

SCAN TOOL.

REFER TO THE PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE AND
REPAIR.

2. INTERNAL
CLUSTER FAILURE.

2. PERFORM CLUSTER SELF-DIAGNOSTIC TEST AND
CHECK FOR FAULT CODES.

•

IF THE POINTER MOVES DURING TEST BUT STILL

APPEARS ERRATIC, REPLACE CLUSTER ASSEMBLY.

TACHOMETER
INACCURATE.

TACHOMETER OUT
OF CALIBRATION.

PERFORM CLUSTER SELF-DIAGNOSTIC TEST.

•

IF TACHOMETER IS ACCURATE TO THE CALIBRATION

POINTS, LOOK FOR ANOTHER POSSIBLE CAUSE OF
INACCURACY.

•

IF TACHOMETER IS NOT ACCURATE TO THE

CALIBRATION POINTS, REPLACE CLUSTER ASSEMBLY.

FUEL GAUGE DIAGNOSIS

CONDITION

POSSIBLE CAUSES

CORRECTION

NO POINTER
MOVEMENT.

1. INTERNAL CLUSTER
FAILURE.

1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST.

•

IF FUEL GAUGE POINTER MOVES TO

CALIBRATION POINTS, LOOK FOR ANOTHER
POSSIBLE CAUSE OF FAILURE.

•

IF THE POINTER DOESN’T MOVE DURING TEST,

VERIFY POWER AND GROUND ARE BEING
PROVIDED TO THE CLUSTER. IF YES, REPLACE
CLUSTER ASSEMBLY. IF NO, DETERMINE CAUSE
OF NO POWER OR GROUND.

2. NO PCI FUEL
MESSAGE OR EMPTY
PCI BUS MESSAGE
FROM BODY CONTROL
MODULE.

2.A. CHECK THE BCM USING A DRB III

T

SCAN

TOOL. IF OK, GO TO STEP 2.B. IF NOT OK, REFER
TO THE PROPER BODY DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.

2.B. REFER TO THE FUEL SECTION OF THE
SERVICE MANUAL FOR THE FUEL LEVEL SENDING
UNIT TEST PROCEDURE. TEST UNIT AND REPAIR
AS INSTRUCTED.

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8J - 7

INSTRUMENT CLUSTER (Continued)

CONDITION

POSSIBLE CAUSES

CORRECTION

ERRATIC POINTER
MOVEMENT.

1. BAD PCI FUEL
MESSAGE FROM THE
BODY CONTROLLER.

1. USE A DRB III

T

SCAN TOOL TO CHECK THE BCM.

IF OK, GO TO STEP 2. IF NOT OK, REFER TO THE
PROPER BODY DIAGNOSTIC PROCEDURES
MANUAL TO PROPERLY DIAGNOSE AND REPAIR.

2. REFER TO THE FUEL SECTION OF THE SERVICE
MANUAL FOR THE FUEL LEVEL SENDING UNIT
TEST PROCEDURE. TEST UNIT. IF OK, LOOK FOR
ANOTHER POSSIBLE CAUSE FOR FUEL GAUGE
FAILURE. IF NOT OK, REPAIR SENDING UNIT.

2. INTERNAL CLUSTER
FAILURE.

2. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK FOR FAULT CODES.

•

IF THE POINTER MOVES DURING TEST BUT

STILL APPEARS ERRATIC, REPLACE CLUSTER
ASSEMBLY.

FUEL GAUGE
INACCURATE.

1. FUEL GAUGE OUT OF
CALIBRATION.

1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST. IF
POINTER IS ACCURATE TO THE CALIBRATION
POINTS LOOK FOR ANOTHER POSSIBLE CAUSE
OF FAILURE. IF POINTER IS INACCURATE TO THE
CALIBRATION POINTS, REPLACE CLUSTER
ASSEMBLY.

2. FUEL LEVEL
SENDING UNIT IS OUT
OF CALIBRATION.

2. REFER TO THE FUEL SECTION OF THE SERVICE
MANUAL FOR TESTING AND REPAIR PROCEDURE.

TEMPERATURE GAUGE DIAGNOSIS

CONDITION

POSSIBLE CAUSES

CORRECTION

NO POINTER
MOVEMENT.

1. INTERNAL CLUSTER
FAILURE.

1. PERFORM CLUSTER SELF-DIAGNOSTIC TEST
AND CHECK.

•

IF TEMPERATURE GAUGE POINTER MOVES TO

CALIBRATION POINTS, LOOK FOR ANOTHER
POSSIBLE CAUSE OF FAILURE.

•

IF THE POINTER DOESN’T MOVE DURING TEST,

VERIFY POWER AND GROUND ARE BEING
PROVIDED TO THE CLUSTER. IF YES, REPLACE
CLUSTER. IF NO, DETERMINE CAUSE OF NO
POWER OR NO GROUND.

2. NO PCI
TEMPERATURE
MESSAGE OR COLD PCI
BUS MESSAGE FROM
THE POWERTRAIN
CONTROL MODULE.

2.A. CHECK PCM FAULT CODES USING A DRB III

T

SCAN TOOL. IF THERE ARE NO FAULTS, GO TO
STEP 2.B. IF THERE ARE FAULTS, REFER TO THE
PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.

2.B. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR, DIAGNOSIS AND TESTING. REPAIR
SENSOR AS NEEDED.

8J - 8

INSTRUMENT CLUSTER

RS

INSTRUMENT CLUSTER (Continued)