AV and NAVI 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 and NAVI control unit connector.
3. Turn ignition switch ON.
4. Shift A/T selector lever to "R" position.
5. Check voltage between AV and NAVI control unit harness connector B29 terminal 27 (R/B) and ground.
  1. 27 (R/B) - Ground: Approx. 12 V
  Fig 2: Checking Voltage Between AV And NAVI Control Unit Harness Connector B29 Terminal 27 (R/B) And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace AV and NAVI control unit.
2. NG: Check harness between AV and NAVI control unit and back-up lamp relay.