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Home >> Infiniti >> 2015 >> Q50 Base, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (INFINITI INTOUCH) (Diagnostic Trouble Codes (DTCS) & Symptom Tests (Exc Hybrid) >> DTC/Circuit Diagnosis >> DTC U1601, U1609: Front Door Woofer >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FRONT DOOR WOOFER CIRCUIT FOR OPEN

    1. Turn ignition switch OFF.
    2. Disconnect BOSE amp. harness connector and front door woofer LH or RH harness connector.
    3. Check the continuity between BOSE amp. harness connector and front door woofer LH or RH harness connector.
      FRONT DOOR WOOFER LH

      BOSE amp. Front door woofer LH Continuity
      Connector Terminal Connector Terminal
      B53 13 D49 1 Existed
      8 2
      FRONT DOOR WOOFER RH

      BOSE amp. Front door woofer RH Continuity
      Connector Terminal Connector Terminal
      B53 3 D51 1 Existed
      4 2

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace malfunctioning parts.

  2. CHECK FRONT DOOR WOOFER CIRCUIT FOR SHORT TO GROUND

    Check the continuity between front door woofer LH or RH harness connector and ground.

    FRONT DOOR WOOFER LH

    Terminals Continuity
    (+) (-)
    Front door woofer LH
    Connector Terminal
    D49 1 Ground Existed
    2
    FRONT DOOR WOOFER RH

    Terminals Continuity
    (+) (-)
    Front door woofer RH
    Connector Terminal
    D51 1 Ground Existed
    2

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace malfunctioning parts.

  3. CHECK FRONT DOOR WOOFER CIRCUIT FOR SHORT TO POWER SUPPLY

    1. Turn ignition switch ON.
    2. Check the voltage between front door woofer LH or RH harness connector and ground.
    FRONT DOOR WOOFER LH

    Terminals Voltage
    (Approx.)
    (+) (-)
    Front door woofer LH
    Connector Terminal
    D49 1 Ground 0 V
    2
    FRONT DOOR WOOFER RH

    Terminals Voltage
    (Approx.)
    (+) (-)
    Front door woofer RH
    Connector Terminal
    D51 1 Ground 0 V
    2

    Is the inspection result normal?

    YES 

    Replace front door woofer LH or RH. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace malfunctioning parts.