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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1810 (Audio, Visual, Navigation & Telephone System) >> Audio >> Sound Is Not Heard From Subwoofer (BOSE System)

Sound Is Not Heard From Subwoofer (BOSE System)

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUSE 

    Check that the following fuse is not blown.

    FUSE REFERENCE CHART

    Unit Terminal Signal name Fuse No.
    Subwoofer 6 Battery power 18

    OK or NG 

    OK: GO TO 2.

    NG: If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to , "POWER SUPPLY ROUTING CIRCUIT ".

  2. POWER SUPPLY CIRCUIT CHECK 
    1. Disconnect subwoofer connector.
    2. Check voltage between the subwoofer and ground.
      POWER SUPPLY CIRCUIT

      Unit Terminal No. OFF ACC ON
      (+) (-)
      Connector Terminal
      Subwoofer B11 6 Ground Battery voltage Battery voltage Battery voltage
      Fig 1: Checking Power Supply Circuit
      G04201519Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG :

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  3. GROUND CIRCUIT CHECK 
    1. Turn ignition switch OFF.
    2. Check continuity between subwoofer harness connector B11 terminal 5 and ground.

      Continuity should exist. 

    Fig 2: Checking Ground Circuit
    G04201520Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  4. CHECK SUBWOOFER AMP. ON SIGNAL 
    1. Connect subwoofer connector.
    2. Turn ignition switch to ACC.
    3. Operate system and check voltage between subwoofer harness connector B11 terminal 4 and ground.

      Voltage: More than approx. 6.5V 

    Fig 3: Checking Subwoofer Amp. On Signal
    G04201521Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  5. HARNESS CHECK 
    1. Turn ignition switch OFF.
    2. Disconnect BOSE speaker amp. connector and subwoofer connectors.
    3. Check continuity between BOSE speaker amp. harness connector terminal and subwoofer harness connector terminal.
      BOSE SPEAKER AMP. AND SUBWOOFER

      Terminals Continuity
      BOSE speaker amp. Subwoofer
      Connector Terminal Connector Terminal
      M113 3 B11 1 Yes
      19 B11 2
    4. Check continuity between BOSE speaker amp. harness connector terminal and ground.
      BOSE SPEAKER AMP. AND GROUND

      Terminals Continuity
      BOSE speaker amp. -
      Connector Terminal
      M113 3 Ground No
      19
      Fig 4: Checking Continuity Between BOSE Speaker Amp. & Subwoofer And BOSE Speaker Amp. & Ground
      G04201522Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 6.

    NG:

    • Check connector housings for disconnected or loose terminals.
    • Repair harness or connector.
  6. SUBWOOFER SIGNAL CHECK 
    1. Connect BOSE speaker amp. connector and subwoofer connector.
    2. Turn ignition switch to ACC.
    3. Check the signal between BOSE speaker amp. harness connector terminals with CONSULT-II or oscilloscope.
      SUBWOOFER SIGNAL

      Terminals Condition Reference signal
      (+) (-)
      Connector Terminal Connector Terminal
      M113 19 M113 3 Receive audio signal
      G04164134
      Fig 5: Checking Subwoofer Signal
      G04201524Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace subwoofer. Refer to , "BOSE SUBWOOFER ".

    NG: Replace BOSE speaker amp. Refer to , "BOSE SPEAKER AMP. ".

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