Power Supply and Ground Circuit Inspection

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSES
Check for blown rear view camera system fuses.

Fig 1: Rear View Camera System Fuse Description Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: GO TO 2.
- NG: If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".
CHECK POWER SUPPLY CIRCUIT
1. Disconnect rear view camera control unit connector.
2. Check voltage between rear view camera control unit and ground.
  
  Fig 2: Rear View Camera Control Unit And Ground Voltage Specification Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Voltage Between Rear View Camera Control Unit And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: Check harness for open between rear view camera control unit and fuse.
CHECK REAR VIEW CAMERA CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear view camera control unit harness connector B73 terminal 3 (B) and ground.
  - Continuity should exist.
OK or NG
- OK: GO TO 4.
- NG: Repair harness or connector.
Fig 4: Checking Continuity Between Rear View Camera Control Unit Harness Connector B73 Terminal 3 (B) And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK REAR VIEW CAMERA GROUND CIRCUIT
1. Disconnect rear view camera connector.
2. Check continuity between rear view camera harness connector D504 terminal 2 (B) and ground.
  - Continuity should exist.
OK or NG
- OK: Inspection End.
- NG: Repair harness or connector.
Fig 5: Checking Continuity Between Rear View Camera Harness Connector D504 Terminal 2 (B) And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.