AV Communication Line Check (Between Display Control Unit and NAVI Control Unit)

Check system of power supply and ground circuit NAVI control unit. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR NAVI CONTROL UNIT  ".

OK or NG 

1. OK : GO TO 2.
2. NG : Check the malfunctioning parts.

1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display control unit connector.
3. Check continuity between NAVI control unit and display control unit.
   Fig 1: Terminal Continuity Specification

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between NAVI control unit and ground.
   Fig 2: Checking Continuity Between NAVI Control Unit And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 3: Terminal Continuity Specification

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

OK or NG 

1. OK : GO TO 3.
2. NG : Repair harness or connector.

1. Replace same normal display control unit.
2. Connect NAVI control unit connector and display control unit connector.
3. Turn ignition switch ON.
4. Start self-diagnosis of DCU, and check the self-diagnosis result.

OK or NG 

1. OK : Replace display control unit.
2. NG : Replace NAVI control unit.