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AUDIO AND VISUAL SYSTEM (w/ Multi-display), Diagnostic DTC:B15C3

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DTC Code DTC Name
B15C3 Speaker Output Short
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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
A01NK3ZE06
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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR


    1. Disconnect the O42 stereo component amplifier assembly connector.

    2. Disconnect the I6 and J6 front No. 3 speaker assembly connectors.

    3. Disconnect the I5 and J4 front No. 2 speaker assembly connectors.

    4. Disconnect the I3 and J2 front No. 1 speaker assembly connectors.

    5. Disconnect the K4 and L4 rear speaker assembly connectors.

    6. Disconnect the K1 and L1 rear No. 2 speaker assembly connectors.

    7. Disconnect the P22 rear No. 3 speaker assembly connector.

    8. Disconnect the H2 front No. 4 speaker assembly connector.

    9. 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
      O42-13 (FR+) - Body ground Always 10 kΩ or higher
      O42-28 (FR-) - Body ground Always 10 kΩ or higher
      O42-12 (FL+) - Body ground Always 10 kΩ or higher
      O42-27 (FL-) - Body ground Always 10 kΩ or higher
      O42-5 (WFR+) - Body ground Always 10 kΩ or higher
      O42-20 (WFR-) - Body ground Always 10 kΩ or higher
      O42-4 (WFL+) - Body ground Always 10 kΩ or higher
      O42-19 (WFL-) - Body ground Always 10 kΩ or higher
      O42-15 (RR+) - Body ground Always 10 kΩ or higher
      O42-30 (RR-) - Body ground Always 10 kΩ or higher
      O42-14 (RL+) - Body ground Always 10 kΩ or higher
      O42-29 (RL-) - Body ground Always 10 kΩ or higher
      O42-6 (WF1+) - Body ground Always 10 kΩ or higher
      O42-21 (WF1-) - Body ground Always 10 kΩ or higher
      O42-7 (CTR+) - Body ground Always 10 kΩ or higher
      O42-22 (CTR-) - Body ground Always 10 kΩ or higher

    10. Measure the resistance between each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I5-3 (+) - Body ground Always 10 kΩ or higher
      I5-4 (-) - Body ground Always 10 kΩ or higher
      J4-3 (+) - Body ground Always 10 kΩ or higher
      J4-4 (-) - Body ground Always 10 kΩ or higher

    11. Measure the resistance between each of the rear No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      K1-3 (+) - Body ground Always 10 kΩ or higher
      K1-4 (-) - Body ground Always 10 kΩ or higher
      L1-3 (+) - Body ground Always 10 kΩ or higher
      L1-4 (-) - Body ground Always 10 kΩ or higher

  2. Click here

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01NLRQE23

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I6-2 - I6-1 Always 3.2 to 4.8 Ω
        J6-2 - J6-1 Always 3.2 to 4.8 Ω
        Table 1. Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 3 Speaker Assembly)

  3. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01NJ53E26

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I5-1 (TWR+) - I5-2 (TWR-) Always 10 kΩ or higher
        I5-1 (TWR+) - I5-3 (+) Always Below 1 Ω
        I5-2 (TWR-) - I5-4 (-) Always Below 1 Ω
        J4-1 (TWL+) - J4-2 (TWL-) Always 10 kΩ or higher
        J4-1 (TWL+) - J4-3 (+) Always Below 1 Ω
        J4-2 (TWL-) - J4-4 (-) Always Below 1 Ω
        Table 2. Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 2 Speaker Assembly)

  4. Click here

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a known good speaker is installed (Click here).

      OK
      Malfunction disappears.
      Tip:

      • Connect all the connectors to the front No. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both LH and RH sides.


  5. Click here

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01NKFBE77

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I3-1 - I3-2 Always 3.2 to 4.8 Ω
        J2-1 - J2-2 Always 3.2 to 4.8 Ω
        Table 3. Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 1 Speaker Assembly)

  6. Click here

    INSPECT REAR SPEAKER ASSEMBLY


    1. Resistance check


      1. A01NKFBE78

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K4-1 - K4-2 Always 3.2 to 4.8 Ω
        L4-1 - L4-2 Always 3.2 to 4.8 Ω
        Table 4. Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear Speaker Assembly)

  7. Click here

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. A01NJ53E27

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        K1-1 (+TW) - K1-2 (-TW) Always 10 kΩ or higher
        K1-1 (+TW) - K1-3 (+) Always Below 1 Ω
        K1-2 (-TW) - K1-4 (-) Always Below 1 Ω
        L1-1 (+TW) - L1-2 (-TW) Always 10 kΩ or higher
        L1-1 (+TW) - L1-3 (+) Always Below 1 Ω
        L1-2 (-TW) - L1-4 (-) Always Below 1 Ω
        Table 5. Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear No. 2 Speaker Assembly)

  8. Click here

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a known good speaker is installed (Click here).

      OK
      Malfunction disappears.
      Tip:

      • Connect all the connectors to the rear No. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both LH and RH sides.


  9. Click here

    INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. A01NJ53E32

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P22-3 (+) - P22-4 (-) Always 1.6 to 2.4 Ω
        Table 6. Text in Illustration
        *a

        Component without harness connected

        (Rear No. 3 Speaker Assembly)

  10. Click here

    INSPECT FRONT NO. 4 SPEAKER ASSEMBLY


    1. A01NLRQE25

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H2-2 - H2-1 Always 4.8 to 7.2 Ω
        Table 7. Text in Illustration
        *a

        Component without harness connected

        (Front No. 4 Speaker Assembly)

  11. Click here

    END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  12. Click here

    END (REAR NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  13. Click here

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLYClick here

  14. Click here

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLYClick here

  15. Click here

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLYClick here

  16. Click here

    REPLACE REAR SPEAKER ASSEMBLYClick here

  17. Click here

    REPLACE REAR NO. 2 SPEAKER ASSEMBLYClick here

  18. Click here

    REPLACE REAR NO. 3 SPEAKER ASSEMBLYClick here

  19. Click here

    REPLACE FRONT NO. 4 SPEAKER ASSEMBLYClick here

  20. Click here

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLYClick here

  21. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR