AUDIO AND VISUAL SYSTEM(w/o Parking Assist Monitor System), Diagnostic DTC:B15C3

DTC Code DTC Name
B15C3 Speaker Output Short

DESCRIPTION

This DTC is stored when a malfunction occurs in the speakers.

DTC No. Detection Item DTC Detection Condition Trouble Area
B15C3 Speaker Output Short A short is detected in the speaker output circuit

  • Harness or connector

  • Speaker

  • Stereo component amplifier assembly

WIRING DIAGRAM

A011QKKE03
A011O2GE08

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. Disconnect the P23 stereo component amplifier assembly connector.

    2. Disconnect the K55 and K56 front No. 2 speaker assembly connectors.

    3. Disconnect the N14 and N29 front No. 1 speaker assembly connectors.

    4. Disconnect the O4 and O9 rear speaker assembly connectors.

    5. Disconnect the P27 rear No. 3 speaker assembly connector.

    6. Disconnect the K57 front No. 3 speaker assembly connector.

    7. Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      P23-13 (FR+) - Body ground Always 10 kΩ or higher
      P23-28 (FR-) - Body ground Always 10 kΩ or higher
      P23-12 (FL+) - Body ground Always 10 kΩ or higher
      P23-27 (FL-) - Body ground Always 10 kΩ or higher
      P23-5 (WFR+) - Body ground Always 10 kΩ or higher
      P23-20 (WFR-) - Body ground Always 10 kΩ or higher
      P23-4 (WFL+) - Body ground Always 10 kΩ or higher
      P23-19 (WFL-) - Body ground Always 10 kΩ or higher
      P23-15 (RR+) - Body ground Always 10 kΩ or higher
      P23-30 (RR-) - Body ground Always 10 kΩ or higher
      P23-14 (RL+) - Body ground Always 10 kΩ or higher
      P23-29 (RL-) - Body ground Always 10 kΩ or higher
      P23-6 (WF1+) - Body ground Always 10 kΩ or higher
      P23-21 (WF1-) - Body ground Always 10 kΩ or higher
      P23-7 (CTR+) - Body ground Always 10 kΩ or higher
      P23-22 (CTR-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. A0022YVC28
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 3.2 to 4.8 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Click here

    2. A011NO2C01
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. A011NO2C01
      *a

      Component without harness connected

      (Rear Speaker Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 3.2 to 4.8 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly.

      Click here

    2. A011NO2C01
      *a

      Component without harness connected

      (Rear No. 3 Speaker Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 2.0 to 3.0 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

      Click here

    2. A0022YVC28
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (-) - 2 (+) Always 4.0 to 6.0 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here