AUDIO AND VISUAL 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. DTC Detection Condition Trouble Area
B15C3 A short is detected in the speaker output circuit

  • Harness or connector

  • Speaker

  • Stereo component amplifier assembly

  • Radio receiver assembly

WIRING DIAGRAM

A01G4A7E08
A01G48UE02

INSPECTION PROCEDURE

PROCEDURE


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


    1. Disconnect the H88 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 N6 and O6 rear speaker assembly connectors.

    5. Disconnect the Q16 stereo component speaker assembly connector.

    6. Disconnect the J2 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
      H88-13 (FR+) - Body ground Always 10 kΩ or higher
      H88-28 (FR-) - Body ground Always 10 kΩ or higher
      H88-12 (FL+) - Body ground Always 10 kΩ or higher
      H88-27 (FL-) - Body ground Always 10 kΩ or higher
      H88-5 (WFR+) - Body ground Always 10 kΩ or higher
      H88-20 (WFR-) - Body ground Always 10 kΩ or higher
      H88-15 (RR+) - Body ground Always 10 kΩ or higher
      H88-30 (RR-) - Body ground Always 10 kΩ or higher
      H88-14 (RL+) - Body ground Always 10 kΩ or higher
      H88-29 (RL-) - Body ground Always 10 kΩ or higher
      H88-4 (WFL+) - Body ground Always 10 kΩ or higher
      H88-19 (WFL-) - Body ground Always 10 kΩ or higher
      H88-7 (CTR+) - Body ground Always 10 kΩ or higher
      H88-22 (CTR-) - Body ground Always 10 kΩ or higher
      H88-6 (WF1+) - Body ground Always 10 kΩ or higher
      H88-21 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly Click here.

    2. A01G65UE02
      Text in Illustration
      *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

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly Click here.

    2. A01G9TME33
      Text in Illustration
      *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

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. A01G65UE02
      Text in Illustration
      *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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly Click here.

    2. A01G9TME36
      Text in Illustration
      *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

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the stereo component speaker assembly Click here.

    2. A01G65UE02
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component 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

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here