Chrysler Town, Dodge Caravan. Manual - part 104
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.
ERRATIC POINTER
MOVEMENT.
1. BAD PCI BUS
MESSAGE FROM THE
POWERTRAIN CONTROL
MODULE.
1.A. CHECK PCM FAULT CODES USING A DRB III
T
SCAN TOOL. IF THERE ARE NO FAULTS, GO TO
STEP 1.B. IF THERE ARE FAULTS, REFER TO THE
PROPER POWERTRAIN DIAGNOSTIC
PROCEDURES MANUAL TO PROPERLY DIAGNOSE
AND REPAIR.
1.B. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR, DIAGNOSIS AND TESTING. REPAIR
SENSOR AS NEEDED.
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.
TEMPERATURE GAUGE
INACCURATE.
1. TEMPERATURE
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. COOLANT SENSOR
OUT OF CALIBRATION.
2. REFER TO FUEL, COOLANT TEMPERATURE
SENSOR FOR TEST AND REPAIR PROCEDURE.
8J - 8
INSTRUMENT CLUSTER
RS
INSTRUMENT CLUSTER (Continued)