AV Communication Line Inspection

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

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: Terminal Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Continuity Between Display Unit And A/C And AV Switch
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between display unit and ground.
  
  Fig 3: Terminal Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : GO TO 2.
2. NG : Repair harness or connector.
Fig 4: Checking Continuity Between Display Unit And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK OF A/C AND AV SWITCH
Replace same normal A/C and AV switch and recheck the symptom.

Is the function normal?
1. YES : Replace A/C and AV switch.
2. NO : Replace display unit.