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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1000 (Audio, Visual, Navigation System) >> BOSE W/Monochrome Display >> Component Diagnosis >> Front Door Speaker >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. HARNESS CHECK
    1. Disconnect BOSE speaker amp. connector B109 and suspect speaker connector.
    2. Check continuity between BOSE speaker amp. harness connector B109 (A) and suspect speaker harness connector (B).
      CONNECTOR TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      B109 18 D3 1 Yes
      19 2
      31 D103 1
      32 2
      Fig 1: Checking Continuity Between Bose Speaker Amp Connector B109 And Suspect Speaker Harness Connector
      G05885772Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BOSE speaker amp. harness connector B109 (A) and ground.
    CONNECTOR TERMINAL CONTINUITY CHART

    A B Continuity
    Connector Terminal
    B109 18 Ground No
    19
    31
    32

    Are continuity test results as specified? 

    YES: GO TO 2.

    NO:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  2. FRONT DOOR SPEAKER SIGNAL CHECK
    1. Connect BOSE speaker amp. connector B109 and suspect speaker connector.
    2. Turn ignition switch to ACC.
    3. Push POWER switch.
    4. Check the signal between BOSE speaker amp. harness connector B109 terminals with CONSULT-III or oscilloscope.
    CONNECTOR TERMINAL SIGNAL CHART

    Connector Terminal Condition Reference signal
    (+) (-)
    B109 18 19 Receive audio signal
    G05885773Courtesy of NISSAN MOTOR CO., U.S.A.
    31 32
    Fig 2: Checking Signal Between BOSE Speaker Amp Harness Connector B109 Terminals
    G05885774Courtesy of NISSAN MOTOR CO., U.S.A.

    Is audio signal voltage as specified? 

    YES: Replace suspect speaker. Refer to "REMOVAL AND INSTALLATION ".

    NO: GO TO 3.

  3. HARNESS CHECK
    1. Disconnect audio unit connector M132 and BOSE speaker amp. connector B109.
    2. Check continuity between audio unit harness connector M132 (A) and BOSE speaker amp. harness connector B109 (B).
      CONNECTOR TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      M132 2 B109 35 Yes
      3 36
      11 33
      12 34
      Fig 3: Checking Continuity Between Audio Unit Connector M132 And Bose Speaker Amp Harness Connector B109
      G05885775Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between audio unit harness connector M132 (A) and ground.
    CONNECTOR TERMINAL CONTINUITY CHART

    A - Continuity
    Connector Terminal
    M132 2 Ground No
    3
    11
    12

    Are continuity test results as specified? 

    YES: GO TO 4.

    NO:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  4. FRONT DOOR SPEAKER SIGNAL CHECK
    1. Connect audio unit connector and BOSE speaker amp. connector.
    2. Turn ignition switch ACC.
    3. Push POWER switch.
    4. Check the signal between audio unit harness connector terminals with CONSULT-III or oscilloscope.
    CONNECTOR TERMINAL SIGNAL CHART

    Connector Terminals Condition Reference signal
    (+) (-)
    M132 2 3 Receive audio signal
    G05885776Courtesy of NISSAN MOTOR CO., U.S.A.
    11 12
    Fig 4: Checking Signal Between Audio Unit Harness Connector Terminals
    G05885777Courtesy of NISSAN MOTOR CO., U.S.A.

    Are the audio signal voltage readings as specified? 

    YES: Replace BOSE speaker amp. Refer to "REMOVAL AND INSTALLATION ".

    NO: Replace audio unit. Refer to "REMOVAL AND INSTALLATION ".

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