Diagnosis Procedure

CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector and rear view camera connector.
3. Check continuity between rear view camera control unit harness connector B31 (A) terminals 9, 10 and rear view camera harness connector T7 (B) terminals 3, 4.
  9 - 4 : Continuity should exist.
  
  10 - 3 : Continuity should exist.
4. Check continuity between rear view camera control unit harness connector B31 (A) terminals 9, 10 and ground.
  9, 10 - Ground : Continuity should not exist.
  
  Fig 1: Checking Continuity Between Rear View Camera Control Unit Connector B31 Terminals 9, 10 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
Is inspection result OK?

YES: GO TO 2

NO: Repair harness or connector.
CHECK CAMERA IMAGE SIGNAL
1. Connect rear view camera control unit connector and rear view camera connector.
2. Turn ignition switch ON.
3. Check signal between rear view camera control unit harness connector B31 terminals 10 and 9.
  10 - 9 :
  
  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 10 And 9
  Courtesy of NISSAN MOTOR CO., U.S.A.
Is inspection result OK?

YES: Replace rear view camera control unit. Refer to "REMOVAL AND INSTALLATION - COUPE ".

NO: Replace rear view camera. Refer to "REMOVAL AND INSTALLATION ".