Diagnosis Procedure

CHECK CAMERA IMAGE SIGNAL CIRCUIT CONTINUITY
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 terminals 11, 12 and control unit harness connector M46 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 terminals 11, 12 and ground.
  11, 12-Ground: Continuity should not exist.
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 AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between rear view camera control unit harness connector terminals 12 and 11.
  12-11 :
  
  Fig 1: Identifying Signal Waveform
Is inspection result OK?

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

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