Rear View Camera Control Unit Reverse Signal Inspection

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 (R/B) and ground.
   1. 4 (R/B) - 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: Disconnecting Rear View Camera Control Unit Connector

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