Nissan Altima (L32) 2007-2012 Service Manual: Front wiper auto stop signal circuit

Component Function Check

1. CHECK FRONT WIPER (AUTO STOP) OPERATION

1. Select "FRONT WIPER STOP" of IPDM E/R DATA MONITOR item.

2. Operate the front wiper.

3. With the front wiper operation, check the monitor status.

Is the status of item normal? YES >> Auto stop signal circuit is normal.

NO >> Refer to WW-24, "Diagnosis Procedure".

Diagnosis Procedure

1. CHECK FRONT WIPER MOTOR (AUTO STOP) OUTPUT VOLTAGE

1. Turn the ignition switch OFF.

2. Disconnect front wiper motor.

3. Turn the ignition switch ON.

4. Check voltage between IPDM E/R harness connector and ground.

Is the measurement normal? YES >> GO TO 2

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

2. CHECK FRONT WIPER MOTOR (AUTO STOP) CIRCUIT CONTINUITY

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R.

3. Check continuity between IPDM E/R harness connector (A) and front wiper motor harness connector (B).

Does continuity exist? YES >> GO TO 3

NO >> Repair or replace harness.

3. CHECK FRONT WIPER MOTOR (AUTO STOP) SHORT CIRCUIT

Check continuity between IPDM E/R harness connector and ground.

Does continuity exist? YES >> Repair or replace harness.

NO >> Replace front wiper motor. Refer to WW-116, "FRONT WIPER DRIVE ASSEMBLY : Removal and Installation".