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Home >> Infiniti >> 2014 >> QX60 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Audio, Visual & Navigation System (DTC/Circuit Diagnosis) (BOSE Audio W/NAVI W/O Surround) (Except Hybrid) (2 Of 2)) >> DTC/Circuit Diagnosis >> Subwoofer >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CONNECTOR CHECK

    Check the AV control unit, BOSE speaker amp. and subwoofer connectors for the following:

    • Proper connection
    • Damage
    • Disconnected or looses terminals

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair the terminal and connector.

  2. CHECK SUBWOOFER SIGNAL CIRCUIT CONTINUITY

    1. Disconnect BOSE speaker amp. connector and subwoofer connector.
    2. Check continuity between BOSE speaker amp. connector and subwoofer connector.
      BOSE speaker amp. Subwoofer Continuity
      Connector Terminal Connector Terminal
      B129 8 B73 1 Yes
      13 2
      6 3
      5 4
    3. Check continuity between BOSE speaker amp. connector and ground.
      BOSE speaker amp. Ground Continuity
      Connector Terminal
      B129 8 - No
      13
      6
      5

    Is the inspection result normal?

    YES 

    GO TO STEP 3. 

    NO 

    Repair or replace harness or connectors.

  3. CHECK SUBWOOFER SIGNAL

    1. Connect BOSE speaker amp. connector and subwoofer connector.
    2. Turn ignition switch to ACC.
    3. Push AV control unit POWER switch.
    4. Check the signal between the terminals of BOSE speaker amp. connector.
      BOSE speaker amp. connector Condition Reference value
      (+) (-)
      Terminal Terminal
      13 8 Audio signal output
      G04084885Courtesy of NISSAN NORTH AMERICA, INC.
      5 6

    Is the inspection result normal?

    YES 

    Replace subwoofer. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 4. 

  4. CHECK PRE-AMP SIGNAL CIRCUIT CONTINUITY

    1. Disconnect AV control unit connector M122 and BOSE speaker amp. connector B130.
    2. Check continuity between AV control unit connector M122 and BOSE speaker amp. connector B130.
      AV control unit BOSE speaker amp. Continuity
      Connector Terminal Connector Terminal
      M122 4 B130 24 Yes
      5 23
      13 26
      14 25
    3. Check continuity between AV control unit connector M122 and ground.
      AV control unit Ground Continuity
      Connector Terminal
      M122 4 - No
      5
      13
      14

    Is the inspection result normal?

    YES 

    GO TO STEP 5. 

    NO 

    Repair or replace harness or connectors.

  5. CHECK PRE-AMP SIGNAL

    1. Connect AV control unit connector M122 and BOSE speaker amp. connector B130.
    2. Turn ignition switch to ACC.
    3. Push AV control unit POWER switch.
    4. Check signal between the terminals of AV control unit connector M122.
      AV control unit connector M122 Condition Reference value
      (+) (-)
      Terminal Terminal
      4 5 Audio signal output
      G04084885Courtesy of NISSAN NORTH AMERICA, INC.
      13 14

    Is the inspection result normal?

    YES 

    Replace BOSE speaker amp. Refer to REMOVAL AND INSTALLATION .

    NO 

    Replace AV control unit. Refer to REMOVAL AND INSTALLATION .

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