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Sound Is Not Heard From Front Door Speaker or Front Tweeter (Base System)

WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. HARNESS CHECK 
    1. Turn ignition switch OFF.
    2. Disconnect audio unit connector M43 and suspect speaker or tweeter connector.
    3. Check continuity between audio unit harness connector M43 terminal and suspect speaker or tweeter harness connector terminal.
      TERMINAL CONTINUITY CHART

      Terminals Continuity
      Audio unit Speaker or tweeter
      Connector Terminal Connector Terminal
      M43 2 D12 + Yes
      1 -
      4 D112 +
      3 -
      2 M109 +
      1 -
      4 M111 +
      3 -
    4. Check continuity between audio unit harness connector M43 terminal and ground.
    Fig 1: Checking Continuity Between Audio Unit Harness Connector M43 Terminal And Ground
    G04206542Courtesy of NISSAN MOTOR CO., U.S.A.
    TERMINAL CONTINUITY CHART

    Terminals Continuity
    Audio unit -
    Connector Terminal
    M43 2 Ground No
    1
    4
    3

    OK or NG 

    OK: GO TO 2.

    NG :

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  2. FRONT SPEAKER SIGNAL CHECK 
    1. Connect audio unit connector and front speaker or tweeter connector.
    2. Turn ignition switch to ACC.
    3. Push "POWER" switch.
    4. Check the signal between audio unit harness connector terminal and ground with CONSULT-II or oscilloscope.
    TERMINAL CONTINUITY CHART

    Terminals Condition Reference signal
    (+) (-)
    Connector Terminal Connector Terminal
    M43 2 M43 1 Receive audio signal
    G04164134
    4 3

    OK or NG 

    OK: Replace speaker. Refer to "FRONT DOOR SPEAKER " or "FRONT TWEETER ".

    NG: Replace audio unit. Refer to "REMOVAL AND INSTALLATION ".

    Fig 2: Checking Signal Between Audio Unit Harness Connector Terminal And Ground
    G04206544Courtesy of NISSAN MOTOR CO., U.S.A.