AUDIO AND VISUAL SYSTEM(w/ Parallel Parking Assist Function), 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

B004EFRE04
B004FM0E04

PROCEDURE


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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O54 and O55 front No. 2 speaker assembly connectors.

    3. Disconnect the R14 and S14 front No. 1 speaker assembly connectors.

    4. Disconnect the T26 and U36 rear No. 2 speaker assembly connectors.

    5. Disconnect the T23 and U34 rear header speaker assembly connectors.

    6. Disconnect the T24 rear No. 3 speaker assembly connector.

    7. Disconnect the O56 front No. 3 speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T20-13 (FR+) or O54-2 (+) - Body ground Always 10 kΩ or higher
      T20-28 (FR-) or O54-1 (-) - Body ground Always 10 kΩ or higher
      T20-12 (FL+) or O55-2 (+) - Body ground Always 10 kΩ or higher
      T20-27 (FL-) or O55-1 (-) - Body ground Always 10 kΩ or higher
      T20-5 (WFR+) or R14-1 - Body ground Always 10 kΩ or higher
      T20-20 (WFR-) or R14-2 - Body ground Always 10 kΩ or higher
      T20-4 (WFL+) or S14-1 - Body ground Always 10 kΩ or higher
      T20-19 (WFL-) or S14-2 - Body ground Always 10 kΩ or higher
      T20-7 (CTR+) or O56-2 (+) - Body ground Always 10 kΩ or higher
      T20-22 (CTR-) or O56-1 (-) - Body ground Always 10 kΩ or higher
      T20-15 (RR+) or T26-3 (+TW) - Body ground Always 10 kΩ or higher
      T20-30 (RR-) or T26-1 (-TW) - Body ground Always 10 kΩ or higher
      T20-14 (RL+) or U36-3 (+TW) - Body ground Always 10 kΩ or higher
      T20-29 (RL-) or U36-1 (-TW) - Body ground Always 10 kΩ or higher
      T20-11 (SR+) or T23-2 - Body ground Always 10 kΩ or higher
      T20-26 (SR-) or T23-1 - Body ground Always 10 kΩ or higher
      T20-10 (SL+) or U34-2 - Body ground Always 10 kΩ or higher
      T20-25 (SL-) or U34-1 - Body ground Always 10 kΩ or higher
      T20-6 (WF1+) or T24-1 - Body ground Always 10 kΩ or higher
      T20-21 (WF1-) or T24-2 - 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 SPEAKER ASSEMBLY - BODY GROUND)


    1. Disconnect the T25 and U35 rear speaker assembly connectors.

    2. Disconnect the T26 and U36 rear No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T25-1 or T26-4 (+) - Body ground Always 10 kΩ or higher
      T25-2 or T26-2 (-) - Body ground Always 10 kΩ or higher
      U35-1 or U36-4 (+) - Body ground Always 10 kΩ or higher
      U35-2 or U36-2 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE 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


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      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. REPLACE 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


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      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. REPLACE 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

    3. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  8. REPLACE REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly.

      Click here

    2. Inspect the rear header speaker assembly.

      Click here

    3. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

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


      Body Electrical > Navigation System > Trouble Codes
      OK
      No DTCs are output.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  9. INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly.

      Click here

    2. Inspect the rear No. 3 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    NG

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here