Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FRONT WIPER MOTOR (AUTO STOP) OUTPUT VOLTAGE

Turn the ignition switch OFF.
Disconnect front wiper motor.
Turn the ignition switch ON.
Check voltage between IPDM E/R harness connector and ground.

TERMINAL VOLTAGE REFERENCE CHART

Terminals			Voltage (V) (Approx.)
(+)		(-)
IPDM E/R		Ground
Connector	Terminal
E18	16		Battery voltage

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

Courtesy of NISSAN MOTOR CO., U.S.A.

Is the measurement normal?

YES: GO TO 2

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

CHECK FRONT WIPER MOTOR (AUTO STOP) CIRCUIT CONTINUITY

Turn the ignition switch OFF.
Disconnect IPDM E/R.
Check continuity between IPDM E/R harness connector (A) and front wiper motor harness connector (B).

TERMINAL CONTINUITY REFERENCE CHART

IPDM E/R		Front wiper motor		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E18 (A)	16	E25 (B)	5	Yes

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

Courtesy of NISSAN MOTOR CO., U.S.A.

Does continuity exist?

YES: GO TO 3

NO: Repair or replace harness.

CHECK FRONT WIPER MOTOR (AUTO STOP) SHORT CIRCUIT

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

TERMINAL CONTINUITY REFERENCE CHART

IPDM E/R		Ground	Continuity
Connector	Terminal
E18	16		No

Fig 3: Checking Continuity Between IPDM E/R Harness Connector And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

Does continuity exist?

YES: Repair or replace harness.

NO: Replace front wiper motor. Refer to "FRONT WIPER DRIVE ASSEMBLY: REMOVAL AND INSTALLATION ".