Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FRONT WIPER MOTOR FUSE
   1. Turn the ignition switch OFF.
   2. Check that the following fuse is not blown.

      Unit	Location	Fuse No.	Capacity
      Front wiper motor	IPDM E/R	39	30 A

      Is the fuse blown? 

      YES: Refer to "DIAGNOSIS PROCEDURE ".

      NO: GO TO 2

2. CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE

   WITH CONSULT ACTIVE TEST

   1. Turn the ignition switch ON.
   2. Select "FRONT WIPER" of IPDM E/R active test item.
   3. While operating the test item, check voltage between IPDM E/R harness connector and ground.

      Terminals			Test item	Voltage (Approx.)
      (+)		(-)
      IPDM E/R		Ground	FRONT WIPER
      Connector	Terminal
      E121	32		LO	Battery voltage
      			OFF	0V

      Fig 1: Checking Voltage Between IPDM E/ R Harness Connector E121 Terminal 32 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the measurement value normal? 

      YES: GO TO 3

      NO: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION OF IPDM E/R ".

3. CHECK FRONT WIPER MOTOR (LO) OPEN CIRCUIT
   1. Turn the ignition switch OFF.
   2. Disconnect IPDM E/R and front wiper motor.
   3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector.

      IPDM E/R		Front wiper motor		Continuity
      Connector	Terminal	Connector	Terminal
      E121	32	E23	1	Yes

      Does continuity exist? 

      YES: Replace front wiper motor. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.