Diagnosis Procedure

1. Turn ignition switch ON.
2. Shift the selector lever to R (reverse).
3. Check voltage between audio unit connector M82 and ground.

   Audio unit		Ground	Condition	Voltage (Approx.)
   (+)		(-)
   Connector	Terminal
   M82	45	--	Selector lever in R (reverse)	Battery Voltage

Is inspection result normal?

YES

GO TO 2.

NO

Check harness for open or short between audio unit and back-up lamp relay.

1. Turn ignition switch OFF.
2. Disconnect audio unit connector M82 and rear view camera connector.
3. Check continuity between audio unit connector M82 and rear view camera connector D411.

   Audio unit		Rear view camera		Continuity
   Connector	Terminal	Connector	Terminal
   M82	39	D411	1	Yes

4. Check continuity between audio unit connector M82 and ground.

   Audio unit		Ground	Continuity
   Connector	Terminal
   M82	39		No

Is inspection result normal?

YES

GO TO 3.

NO

Repair or replace harness or connectors.

1. Connect audio unit connector M82 and rear view camera connector.
2. Turn ignition switch ON.
3. Shift the selector lever to R (reverse).
4. Check voltage between audio unit connector M82 and ground.

   Audio unit		Ground	Condition	Voltage (Approx.)
   (+)		(-)
   Connector	Terminal
   M82	39	--	Selector lever is in "R".	6.0 V

Is inspection result normal?

YES

GO TO 4.

NO

Replace audio unit. Refer to Removal and Installation .

1. Turn ignition switch OFF.
2. Disconnect audio unit connector M82 and rear view camera connector.
3. Check continuity between audio unit connector M82 and rear view camera connector D411.

   Audio unit		Rear view camera		Continuity
   Connector	Terminal	Connector	Terminal
   M82	40	D411	3	Yes

4. Check continuity between audio unit connector M82 and ground.

   Audio unit		Ground	Continuity
   Connector	Terminal
   M82	40		No

Is inspection result normal?

YES

GO TO 5.

NO

Repair or replace harness or connectors.

Check continuity between audio unit connector M82 and rear view camera connector D411.

Is inspection result normal?

YES

GO TO 6.

NO

Repair or replace harness or connectors.

1. Connect audio unit connector M82 and rear view camera connector.
2. Turn ignition switch ON.
3. Shift the selector lever to R (reverse).
4. Check signal between audio unit connector M82 and ground.

   Audio unit		Ground	Condition	Reference value
   (+)		(-)
   Connector	Terminal
   M82	40	--	Camera image displayed.	Courtesy of NISSAN NORTH AMERICA, INC.

Is inspection result normal?

YES

Replace audio unit. Refer to Removal and Installation .

NO

Replace rear view camera. Refer to Removal and Installation .