Nissan Altima 2007-2012 Service Manual: Front wiper does not operate

Description

The front wiper does not operate under any operation conditions

Diagnosis Procedure

1. CHECK WIPER RELAY OPERATION

1. Start IPDM E/R auto active test. Refer to PCS-14, "Diagnosis Description".

2. Check that the front wiper operates at the LO/HI operation.

1. Select "FRONT WIPER" of IPDM E/R active test item.

2. While operating the test item, check that front wiper LO/HI operation and OFF.

Does the front wiper operate? YES >> GO TO 5

NO >> GO TO 2

2. CHECK FRONT WIPER MOTOR FUSE

1. Turn the ignition switch OFF.

2. Check that the front wiper motor fuse 30A (No. 55, located in the IPDM E/R) is not blown.

Is the fuse blown? YES >> Replace the fuse after repairing the affected circuit.

NO >> GO TO 3

3. CHECK FRONT WIPER MOTOR (GND) OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect front wiper motor.

3. Check continuity between front wiper motor harness connector and ground.

Does continuity exist? YES >> GO TO 4

NO >> Repair or replace harness.

4. CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE

1. Turn the ignition switch OFF.

2. Turn the ignition switch ON.

3. Select "FRONT WIPER" of IPDM E/R active test item.

4. With operating the test item, check voltage between IPDM E/R harness connector and ground.

Is the measurement normal? YES LO circuit>>Refer to WW-20, "Diagnosis Procedure".

YES HI circuit>>Refer to WW-22, "Diagnosis Procedure".

NO >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

5. CHECK FRONT WIPER REQUEST SIGNAL INPUT

1. Select "FR WIP REQ" of IPDM E/R "DATA MONITOR" item.

2. Switch the front wiper switch to HI and LO.

3. With operating the front wiper switch, check the monitor status.

Is the status of item normal? YES >> Replace IPDM E/R. Refer to PCS-48, "Removal and Installation".

NO >> GO TO 6

6. CHECK COMBINATION SWITCH

1. Perform the inspection of the combination switch. Refer to BCS-10, "System Description".

Is combination switch normal? YES >> Replace BCM. Refer to BCS-96, "Removal and Installation".

NO >> Repair or replace the malfunctioning parts.

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