AUDIO AND VISUAL SYSTEM(except 8 Speakers), 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

A0005Z0E07
A000778E17

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY OR SPEAKERS - BODY GROUND)


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the H63 and H62 front No. 2 speaker assembly connectors.

    3. Disconnect the L6 and M5 front No. 1 speaker assembly connectors.

    4. Disconnect the J2 front No. 3 speaker assembly connector.

    5. Disconnect the N7 and O7 rear No. 2 speaker assembly connectors.

    6. Disconnect the Q15 and P32 rear header speaker assembly connectors.

    7. Disconnect the Q16 stereo component speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H99-13 (FR+) or H63-2 - Body ground Always 10 kΩ or higher
      H99-28 (FR-) or H63-1 - Body ground Always 10 kΩ or higher
      H99-12 (FL+) or H62-2 - Body ground Always 10 kΩ or higher
      H99-27 (FL-) or H62-1 - Body ground Always 10 kΩ or higher
      H99-5 (WFR+) or L6-1 - Body ground Always 10 kΩ or higher
      H99-20 (WFR-) or L6-2 - Body ground Always 10 kΩ or higher
      H99-4 (WFL+) or M5-1 - Body ground Always 10 kΩ or higher
      H99-19 (WFL-) or M5-2 - Body ground Always 10 kΩ or higher
      H99-7 (CTR+) or J2-2 - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) or J2-1 - Body ground Always 10 kΩ or higher
      H99-15 (RR+) or N7-3 (TW+) - Body ground Always 10 kΩ or higher
      H99-30 (RR-) or N7-1 (TW-) - Body ground Always 10 kΩ or higher
      H99-14 (RL+) O7-3 (TW+) - Body ground Always 10 kΩ or higher
      H99-29 (RL-) O7-1 (TW-) - Body ground Always 10 kΩ or higher
      H99-11 (SR+) or Q15-2 - Body ground Always 10 kΩ or higher
      H99-26 (SR-) or Q15-1 - Body ground Always 10 kΩ or higher
      H99-10 (SL+) or P32-2 - Body ground Always 10 kΩ or higher
      H99-25 (SL-) or P32-1 - Body ground Always 10 kΩ or higher
      H99-6 (WF1+) or Q16-1 - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) or Q16-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (REAR NO. 2 SPEAKER ASSEMBLY - BODY GROUND)


    1. Disconnect the N7 and O7 rear No. 2 speaker assembly connectors.

    2. Disconnect the N6 and O6 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N7-4 (+) or N6-1 - Body ground Always 10 kΩ or higher
      N7-2 (-) or N6-2 - Body ground Always 10 kΩ or higher
      O7-4 (+) or O6-1 - Body ground Always 10 kΩ or higher
      O7-2 (-) O6-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. Inspect the front No. 2 speaker assembly.

      Click here

    3. Clear the DTCs.

      Click here

    4. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  4. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Click here

    2. Inspect the front No. 1 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

      Click here

    2. Inspect the front No. 3 speaker assembly.

      Click here

    3. Clear the DTCs.

      Click here

    4. Recheck for DTCs and check that no DTCs are output.

      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  6. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  7. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

      Click here

    2. Inspect the rear No. 2 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  8. INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly.

      Click here

    2. Inspect the rear header speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR HEADER SPEAKER ASSEMBLY Click here

    OK

  9. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the stereo component speaker assembly.

      Click here

    2. Inspect the stereo component speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here