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Sound Is Not Heard From Rear Door Speaker (BOSE System)

WARNING: This page is about a different car, the 2004 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 and rear door speaker connector.
    2. Check continuity between BOSE speaker amp. harness connector terminal and speaker harness connector terminal.
      Fig 1: Checking Harness
      G03496198Courtesy of NISSAN MOTOR CO., U.S.A.
      TERMINAL CONTINUITY SPECIFICATION

      Terminals Continuity
      BOSE speaker amp. Speaker
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      B128 9 (G/Y) D202 + (G/Y) Yes
      10 (L/Y) - (L/Y)
      11 (L) D302 + (L)
      12 (R) - (R)
    3. Check continuity between BOSE speaker amp. harness connector terminal and ground.
    TERMINAL CONTINUITY SPECIFICATION

    Terminals Continuity
    BOSE speaker amp. -
    Connector Terminal (Wire color)
    B128 9 (G/Y) Ground No
    10 (L/Y)
    11 (L)
    12 (R)

    OK or NG

    1. OK: GO TO 2.
    2. NG:
      • Check connector housings for disconnected or loose terminals.
      • Repair harness or connector.
  2. REAR SPEAKER SIGNAL CHECK 
    1. Connect BOSE speaker amp. connector and rear door speaker connector.
    2. Turn ignition switch to ACC.
    3. Push "POWER" switch.
    4. Check the signal BOSE speaker amp. harness connector terminal with CONSULT-II or oscilloscope.
    Fig 2: Terminal Continuity Specification
    G03496199Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Checking Rear Speaker Signal
    G03496200Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace speaker. Refer to , "REMOVAL AND INSTALLATION OF REAR DOOR SPEAKER ".
    2. NG: GO TO 3.
  3. HARNESS CHECK 
    1. Disconnect audio unit connector M44 and BOSE speaker amp. connector B128.
    2. Check continuity between audio unit harness connector terminal and BOSE speaker amp. harness connector terminal.
      TERMINAL CONTINUITY SPECIFICATION

      Terminals Continuity
      Audio unit BOSE speaker amp.
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M44 13 (B/R) B128 25 (B/R) Yes
      14 (BR) 26 (BR)
      15 (BAN) 23 (B/W)
      16 (L) 24 (L)
      Fig 4: Checking Harness
      G03496201Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between audio unit harness connector terminal and ground.
    TERMINAL CONTINUITY SPECIFICATION

    Terminals Continuity
    Audio unit -
    Connector Terminal (Wire color)
    M44 13 (B/R) Ground No
    14 (BR)
    15 (B/W)
    16 (L)

    OK or NG

    1. OK: GO TO 4.
    2. NG:
      • Check connector housings for disconnected or loose terminals.
      • Repair harness or connector.
  4. REAR SPEAKER SIGNAL CHECK 
    1. Connect audio unit connector and BOSE speaker amp. connector
    2. Turn ignition switch to ACC.
    3. Push "POWER" switch.
    4. Check the signal audio unit harness connector terminal with CONSULT-II or oscilloscope.
    Fig 5: Checking Rear Speaker Signal
    G03496202Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 6: Checking Rear Speaker Signal
    G03496203Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace BOSE speaker amp. Refer to , "REMOVAL AND INSTALLATION OF BOSE SPEAKER AMP ".
    2. NG: Replace audio unit. Refer to , "REMOVAL AND INSTALLATION OF AUDIO UNIT ".
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