Av Communication Line Inspection

Check A/C And AV Switch Circuit .
1. Turn ignition switch OFF.
2. Disconnect display unit connector and A/C and AV switch connector.
3. Check continuity between display unit and A/C and AV switch.
  
  Fig 1: Checking Continuity Between Display Unit & A/C, AV Switch
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Displaying Terminals & Continuity Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between display unit and ground.
  
  Fig 3: Checking Continuity Between Display Unit Terminals & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 4: Displaying Terminals & Continuity Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 2 .
2. NG: Repair harness or connector.
Check AV Communication Signal .
1. Connect display unit connector and A/C and AV switch connector.
2. Turn ignition switch ON.
3. Check the signal between display unit harness connector M62 terminals 11 (B/R), 13 (W/R) and ground with CONSULT-II or oscilloscope.
  
  Fig 5: Checking Signal Between Display Unit Harness Connector & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Identifying Oscilloscope Screen Showing Signal
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Identifying Oscilloscope Screen Showing Signal
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: INSPECTION END
2. NG: Replace A/C and AV switch.