Rear View Camera Control Unit Reverse Signal Inspection

CHECK REVERSE POSITION INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Turn ignition switch ON.
4. Shift A/T selector lever to "R" position.
5. Check voltage between rear view camera control unit harness connector B236 terminal 4 and ground.
  4 - Ground : Approx. 12 V
OK or NG
1. OK : Reverse signal is OK. Return to "SYMPTOM CHART ".
2. NG : Check harness between rear view camera control unit and back-up lamp relay.
  
  Fig 1: Identifying Voltage Between Rear View Camera Control Unit Harness Connector B236 Terminal 4 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.