AUDIO AND VISUAL SYSTEM(w/o 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

  • Radio receiver assembly*1

  • Radio setting condenser*1

  • Stereo component amplifier assembly*2

WIRING DIAGRAM


  1. for 6 Speakers

    A0022LAE08

  2. for 10 Speakers

    A00216FE01
    A0020QRE35

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 10 Speakers B

    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER - BODY GROUND) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - BODY GROUND)


    1. Disconnect the K70 and K71 radio receiver assembly connectors.

    2. Disconnect the K69 radio setting condenser connector.

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

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

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K70-1 (FR+) or N14-1 - Body ground Always 10 kΩ or higher
      K70-5 (FR-) or N14-2 - Body ground Always 10 kΩ or higher
      K70-2 (FL+) or N29-1 - Body ground Always 10 kΩ or higher
      K70-6 (FL-) or N29-2 - Body ground Always 10 kΩ or higher
      K71-1 (RR+) or O4-1 - Body ground Always 10 kΩ or higher
      K71-3 (RR-) or O4-2 - Body ground Always 10 kΩ or higher
      K71-2 (RL+) or O9-1 - Body ground Always 10 kΩ or higher
      K71-6 (RL-) or O9-2 - Body ground Always 10 kΩ or higher
      K55-1 or K69-7 (RI-) - Body ground Always 10 kΩ or higher
      K55-2 or K69-8 (RI+) - Body ground Always 10 kΩ or higher
      K56-1 or K69-5 (LI-) - Body ground Always 10 kΩ or higher
      K56-2 or K69-4 (LI+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. 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

  4. 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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. REPLACE RADIO SETTING CONDENSER


    1. Replace the radio setting condenser with a new or known good one.

    2. Clear the DTCs.

      Click here


      Body Electrical > Navigation System > Clear DTCs

    3. 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

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

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


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P23-13 (FR+) or K55-2 (+) - Body ground Always 10 kΩ or higher
      P23-28 (FR-) or K55-1 (-) - Body ground Always 10 kΩ or higher
      P23-12 (FL+) or K56-2 (+) - Body ground Always 10 kΩ or higher
      P23-27 (FL-) or K56-1 (-) - Body ground Always 10 kΩ or higher
      P23-5 (WFR+) or N14-1 - Body ground Always 10 kΩ or higher
      P23-20 (WFR-) or N14-2 - Body ground Always 10 kΩ or higher
      P23-4 (WFL+) or N29-1 - Body ground Always 10 kΩ or higher
      P23-19 (WFL-) or N29-2 - Body ground Always 10 kΩ or higher
      P23-15 (RR+) or O4-1 - Body ground Always 10 kΩ or higher
      P23-30 (RR-) or O4-2 - Body ground Always 10 kΩ or higher
      P23-14 (RL+) or O9-1 - Body ground Always 10 kΩ or higher
      P23-29 (RL-) or O9-2 - Body ground Always 10 kΩ or higher
      P23-6 (WF1+) or P27-1 - Body ground Always 10 kΩ or higher
      P23-21 (WF1-) or P27-2 - Body ground Always 10 kΩ or higher
      P23-7 (CTR+) or K57-2 (+) - Body ground Always 10 kΩ or higher
      P23-22 (CTR-) or K57-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. 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

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  9. 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

  10. 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

  11. 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

    NG

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here

    OK

  12. 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

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here