Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

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

CHECK FRONT WIPER MOTOR FUSE

Turn the ignition switch OFF.

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

CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE

CONSULT ACTIVE TEST

Turn the ignition switch ON.
Select "FRONT WIPER" of IPDM E/R active test item.

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 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 ".

CHECK FRONT WIPER MOTOR (LO) OPEN CIRCUIT

Turn the ignition switch OFF.
Disconnect IPDM E/R and front wiper motor.

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	Continuity
E121	32	E23	3	Yes

Fig 2: Checking Continuity Between IPDM E/R Harness Connector And Front Wiper Motor Harness Connector

Courtesy of NISSAN NORTH AMERICA, INC.

Does continuity exist?

YES: Replace front wiper motor. Refer to "WIPER MOTOR AND LINKAGE ".

NO: Repair or replace harness.