AV Control Unit Reverse Signal Inspection

CHECK REVERSE SIGNAL INPUT
Make sure vehicle signals by "VEHICLE SIGNALS" of "CONFIRMATION/ADJUSTMENT" function. Refer to "VEHICLE SIGNALS ".
1. "Reverse"
2. A/T selector lever "R" position: ON
3. A/T selector lever in other "R" position: OFF
OK or NG
1. OK: Reverse signal is OK. Return to "SYMPTOM CHART ".
2. NG: GO TO 2.
Fig 1: Displaying Vehicle Signals
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK REVERSE POSITION INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector.
3. Turn ignition switch ON.
4. Shift A/T selector lever to "R" position.
5. Check voltage between AV control unit harness connector M78 terminal 19 (R/B) and ground.
  1. 19 (R/B) - Ground: Approx. 12 V
OK or NG
1. OK: Replace AV control unit.
2. NG: Check harness between AV control unit and back-up lamp relay.
Fig 2: Disconnecting AV Control Unit Connector
Courtesy of NISSAN MOTOR CO., U.S.A.