Diagnosis Procedure

1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector B31 and AV control unit connector M46.
3. Check continuity between rear view camera control unit harness connector B31 (A) terminals 11, 12 and AV control unit harness connector M46 (B) terminals 34, 55.

   11 - 55 : Continuity should exist. 

   12 - 34 : Continuity should exist. 

4. Check continuity between rear view camera control unit harness connector B31 (A) terminals 11, 12 and ground.

   11, 12 - Ground : Continuity should not exist. 

   Fig 1: Checking Continuity Between Rear View Camera Control Unit Connector B31 Terminals 11, 12 And Ground

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

Is inspection result OK? 

YES: GO TO 2

NO: Repair harness or connector.

1. Connect rear view camera control unit connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between rear view camera control unit harness connector B31 terminals 12 and 11.

   12 - 11 : 

   Fig 2: Identifying Signal Waveform

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Checking Signal Between Rear View Camera Control Unit Harness Connector B31 Terminals 12 And 11

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

Is inspection result OK? 

YES: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".

NO: Replace rear view camera control unit. For coupe, refer to "REMOVAL AND INSTALLATION - COUPE ". For sedan, refer to "REMOVAL AND INSTALLATION - SEDAN ".