Front Wiper Motor; Diagnosis And Testing - Wiper Motor - Chrysler Pacifica 2004 Service Manual

8R - 8 WIPERS/WASHERS

FRONT WIPER MOTOR

DIAGNOSIS AND TESTING - WIPER MOTOR

Whenever a wiper motor malfunction occurs, dis-
connect motor wire harness and clean the terminals.
Ensure the wire harness is properly connected before
starting diagnosis and repair procedures. Refer to
WIPER MOTOR TEST table and the appropriate
Body Diagnostic Procedures manual.
CONDITION
WIPER OPERATES IN LOW
SPEED OR INTERMITTENT
ONLY.
WIPER OPERATES IN
INTERMITTENT MODE ONLY.
WIPER OPERATES IN HIGH
SPEED ONLY.
WIPER OPERATION
SWITCHES BETWEEN LOW
AND HIGH SPEED
OPERATION.
WIPER MOTOR TEST
POSSIBLE CAUSE
1. HI/LO RELAY DEFECTIVE.
2. OPEN OR DEFECTIVE
CONTROL CIRCUIT IN BCM.
3. DEFECTIVE WIPER
SWITCH.
4. OPEN HIGH SPEED
CIRCUIT.
5. DEFECTIVE MOTOR.
1. DEFECTIVE WIPER
SWITCH.
1. DEFECTIVE HI/LO RELAY.
2. DEFECTIVE CONTROL
CIRCUIT TO BCM.
3. DEFECTIVE BCM.
4. OPEN LOW SPEED
CIRCUIT.
5. DEFECTIVE MOTOR.
1. DEFECTIVE CONTROL
CIRCUIT TO BCM.
2. DEFECTIVE BCM.
CORRECTION
1. CHECK HI/LO RELAY WITH KNOWN GOOD
RELAY. IF NOT OK, REPLACE HI/LO RELAY.
2. OPEN OR DEFECTIVE CIRCUIT BETWEEN
HI/LO RELAY CAVITY C AND BCM
CONNECTOR TERMINAL #12C. DEFECTIVE
BCM. IF NOT OK, REPAIR CIRCUIT OR REFER
TO BCM DIAGNOSTIC PROCEDURES.
3. REFER TO WIPER SWITCH DIAGNOSTIC
PROCEDURES.
4. OPEN OR DEFECTIVE CIRCUIT BETWEEN
HI/LO RELAY CAVITY D AND WIPER MOTOR
CONNECTOR TERMINAL #1. IF NOT OK,
REPAIR CIRCUIT.
5. APPLY BATTERY JUMPER OVER TO WIPER
TERMINAL #1 AND GROUND TERMINAL #5. IF
NOT OK, REPLACE MOTOR.
1. REFER TO WIPER SWITCH DIAGNOSTIC
PROCEDURES.
1. CHECK WIPER HI/LO RELAY WITH KNOWN
GOOD RELAY. REPLACE IF NOT OK.
2. CONTINUOUS SHORT BETWEEN HI/LO
RELAY CAVITY C AND BCM CONNECTOR
TERMINAL #12C. IF NOT OK, REPAIR CIRCUIT.
3. REFER TO BCM DIAGNOSTIC PROCEDURES.
4. OPEN OR DEFECTIVE CIRCUIT BETWEEN
HI/LO RELAY CAVITY E AND WIPER MOTOR
CONNECTOR TERMINAL #2. IF NOT OK,
REPAIR CIRCUIT.
5. APPLY BATTERY JUMPER POWER TO WIPER
TERMINAL #2 AND GROUND TERMINAL #5. IF
NOT OK, REPLACE MOTOR.
1. INTERMITTENT SHORT BETWEEN HI/LO
RELAY CAVITY C AND BCM CONNECTOR
TERMINAL #12C, IF NOT OK, REPAIR CIRCUIT.
2. REFER TO BCM DIAGNOSTIC PROCEDURES.
CS