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 REVERSE POSITION INPUT SIGNAL

NOTE: Apply parking brakes before proceeding.

Turn ignition switch ON.
Shift transmission into reverse.

Check voltage between AV control unit harness connector M165 terminal 69 and ground.

(+)		(-)	Transmission position	Value (Approx.)
Connector	Terminal	(-)	Transmission position	Value (Approx.)
M165	69	Ground	Reverse	12V

Is voltage reading approximately 12 volts?

YES: GO TO 2

NO: Check harness for open or short between AV control unit and back-up lamp relay.

CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect display unit connector M168 and rear view camera connector D504.
3. Check continuity between display unit harness connector M168 terminals 7, 8, 21 and rear view camera harness connector D504 terminals 3, 5 and 6.
  8 - 6: Continuity should exist.
  
  7 - 5: Continuity should exist.
  
  21 - 3: Continuity should exist.
4. Check continuity between display unit harness connector M168 terminals 7, 8, 21 and ground.
  7, 8, 21 - Ground: Continuity should not exist.
  
  Is inspection result OK?
  
  YES: GO TO 3
  
  NO: Repair harness or connector.
CHECK CAMERA IMAGE SIGNAL
1. Connect display unit connector and rear view camera connector.
2. Turn ignition switch ON.
3. Shift transmission into reverse.
4. Check signal between display unit harness connector M168 terminals 8 and 7.
  8 - 7:
  
  Fig 1: Identifying Camera Image Signal Waveform
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is inspection result OK?
  
  YES: Replace display unit. Refer to "REMOVAL AND INSTALLATION ".
  
  NO: Replace rear view camera. Refer to "REMOVAL AND INSTALLATION ".