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Head Phone Does Not Sound

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.
  1. CHECK HEAD PHONE AND SIGNAL 

    Check the inspection items below to diagnose the malfunction.

    • Check that the signal is received at the rear seat.
    • Check that transmission part has any seals or dirt that interrupts signal.
    • Check that the head phone battery has run down.

    OK or NG 

    1. OK : GO TO 2.
    2. NG :
      • Receive signal with head phone at the rear seat.
      • Remove seal or dirt that is interrupting signal.
      • If the battery has run down, replace it with new one.
    Fig 1: Checking Signal
    G02365780Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HEAD PHONE 

    Check that sound is heard with another head phone.

    OK or NG 

    1. OK : Replace malfunction head phone.
    2. NG : GO TO 3.
  3. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect DVD player connector and DVD display connector.
    3. Check continuity between DVD player harness connector B19 terminal 17 (G), 18 (L), 19 (LG), 20 (Y) and DVD display harness connector B192 terminal 1 (G), 2 (L), 3, 4 (Y).
      1. 17 (G) - 1 (G) : Continuity should exist. 
      2. 18 (L) - 2 (L) : Continuity should exist. 
      3. 19 (LG) - 3 : Continuity should exist. 
      4. 20 (Y) - 4 (Y) : Continuity should exist. 
      Fig 2: Checking Continuity Between DVD Player Harness Connector B19 Terminal 17
      G02365781Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between DVD player harness connector B19 terminal 17 (G), 18 (L), 19 (LG), 20 (Y) and ground.
      1. 17 (G), 18 (L), 19 (LG), 20 (Y) - Ground : Continuity should not exist. 

    OK or NG 

    1. OK : GO TO 4.
    2. NG : Repair harness or connector.
  4. CHECK MES SOUND SIGNAL 
    1. Connect DVD player connector and DVD display connector.
    2. Turn the ignition switch ACC and push "POWER" switch of DVD player.
    3. Check the signal between DVD player harness connector B19 terminal 17 (G), 18 (L), 20 (Y) and 19 (LG) with CONSULT-II or oscilloscope.
    Fig 3: Terminal Reference Value
    G02365782Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Checking Signal Between DVD Player Harness Connector B19 Terminal 17
    G02365783Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : Replace DVD display.
    2. NG : Replace DVD player.
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