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

CHECK AV SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and AV switch connector M98.
3. Check continuity between display control unit and AV switch.
  
  Fig 1: Connector Terminals Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between display control unit and ground.
  
  Fig 2: Checking Continuity Between Display Control Unit & AV Switch
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Connector Terminals Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 2.
- NG: Repair harness or connector.
CHECK AV COMMUNICATION SIGNAL
1. Connect display control unit connector and AV switch connector.
2. Turn ignition switch ON.
3. Check signal between display control unit harness connector M95 terminal 28 (V) and 30 (LG) with CONSULT-II or oscilloscope.
  28 (V), 30 (LG) - Ground: Refer to TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT .
OK or NG
- OK: Replace AV switch. Refer to REMOVAL AND INSTALLATION FOR AV SWITCH .
- NG: Replace display control unit. Refer to REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT .
  
  Fig 4: Checking Signal Between Display Control Unit Harness Connector M95 Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.