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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 >> Center 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 center speaker connector M130.
    2. Check continuity between BOSE speaker amp. harness connector B109 (A) and center speaker harness connector M130 (B).
      CONNECTOR TERMINAL CONTINUITY CHART

      A B Continuity
      Connector Terminal Connector Terminal
      B109 29 M130 1 Yes
      30 2
      Fig 1: Checking Continuity Between Bose Speaker Amp Harness Connector B109 And Center Speaker Harness Connector M130
      G05885784Courtesy 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 - Continuity
    Connector Terminal
    B109 29 Ground No
    30

    Are continuity test results as specified? 

    YES: GO TO 2.

    NO:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  2. CENTER SPEAKER SIGNAL CHECK
    1. Connect BOSE speaker amp. connector B109 and center 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 Terminals Condition Reference signal
    (+) (-)
    B109 29 30 Receive audio signal
    G05885785Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Signal Between Bose Speaker Amp Harness Connector B109 Terminals
    G05885786Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the audio signal voltage reading as specified? 

    YES: Replace center 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
      M1322 2 B109 35 Yes
      3 36
      11 33
      12 34
    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
    Fig 3: Checking Continuity Between Audio Unit Harness Connector M132 And Ground
    G05885787Courtesy of NISSAN MOTOR CO., U.S.A.

    Are continuity test results as specified? 

    YES: GO TO 4.

    NO:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  4. CENTER 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
    G05885788Courtesy of NISSAN MOTOR CO., U.S.A.
    11 12
    Fig 4: Checking Signal Between Audio Unit Harness Connector Terminals
    G05885789Courtesy 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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