AUDIO AND VISUAL SYSTEM (w/ Multi-display), 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. DTC Detection Condition Trouble Area
B15C3 A short is detected in the speaker output circuit.

  • Harness or connector

  • Speaker

  • Stereo component amplifier assembly

WIRING DIAGRAM

A01G4A7E07
A01G7ERE15

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    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 N6 and O6 rear speaker assembly connectors.

    6. Disconnect the Q16 stereo component 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
      H99-13 (FR+) - Body ground Always 10 kΩ or higher
      H99-28 (FR-) - Body ground Always 10 kΩ or higher
      H99-12 (FL+) - Body ground Always 10 kΩ or higher
      H99-27 (FL-) - Body ground Always 10 kΩ or higher
      H99-5 (WFR+) - Body ground Always 10 kΩ or higher
      H99-20 (WFR-) - Body ground Always 10 kΩ or higher
      H99-4 (WFL+) - Body ground Always 10 kΩ or higher
      H99-19 (WFL-) - Body ground Always 10 kΩ or higher
      H99-7 (CTR+) - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) - Body ground Always 10 kΩ or higher
      H99-15 (RR+) - Body ground Always 10 kΩ or higher
      H99-30 (RR-) - Body ground Always 10 kΩ or higher
      H99-14 (RL+) - Body ground Always 10 kΩ or higher
      H99-29 (RL-) - Body ground Always 10 kΩ or higher
      H99-6 (WF1+) - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01G4WQE07
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

      Remove the front No. 1 speaker assembly Click here.

    2. 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

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A01G6RCE38
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

      Remove the front No. 2 speaker assembly Click here.

    2. 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

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A01G6RCE38
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

      Remove the front No. 3 speaker assembly Click here.

    2. 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

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT REAR SPEAKER ASSEMBLY


    1. A01G4WQE07
      Text in Illustration
      *a

      Component without harness connected

      (Rear Speaker Assembly)

      Remove the rear speaker assembly Click here.

    2. 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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. A01G4WQE07
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

      Remove the stereo component speaker assembly Click here.

    2. 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

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here