Click here

AUDIO AND VISUAL SYSTEM(w/o Multi-display) Speaker Circuit

Click here
Click here
DTC Code DTC Name
  Speaker Circuit
Click here

DESCRIPTION

If there is a short in a speaker circuit, the stereo component amplifier assembly detects the short and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.

A0004QCE24
Click here

WIRING DIAGRAM

Click here

PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR


    1. Disconnect the H88 stereo component amplifier assembly connector.

    2. Disconnect the L6 and M5 front No. 1 speaker assembly connectors.

    3. Disconnect the H63 and H62 front No. 2 speaker assembly connectors.

    4. Disconnect the O6 and N6 rear speaker assembly connectors.

    5. Disconnect the J2 front No. 3 speaker assembly connector.

    6. Disconnect the Q16 stereo component speaker assembly connector.

    7. Measure the resistance between the front No. 2 speaker assembly RH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-13 (FR+) - H63-2 Always Below 1 Ω
      H88-28 (FR-) - H63-1 Always Below 1 Ω

    8. Measure the resistance between the front No. 2 speaker assembly LH and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-12 (FL+) - H62-1 Always Below 1 Ω
      H88-27 (FL-) - H62-2 Always Below 1 Ω

    9. Measure the resistance between each of the front No. 1 speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-5 (WFR+) - L6-1 Always Below 1 Ω
      H88-20 (WFR-) - L6-2 Always Below 1 Ω
      H88-4 (WFL+) - M5-1 Always Below 1 Ω
      H88-19 (WFL-) - M5-2 Always Below 1 Ω

    10. Measure the resistance between the front No. 3 speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-7 (CTR+) - J2-1 Always Below 1 Ω
      H88-22 (CTR-) - J2-2 Always Below 1 Ω

    11. Measure the resistance between each of the rear speaker assemblies and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-15 (RR+) - N6-1 Always Below 1 Ω
      H88-30 (RR-) - N6-2 Always Below 1 Ω
      H88-14 (RL+) - O6-1 Always Below 1 Ω
      H88-29 (RL-) - O6-2 Always Below 1 Ω

    12. Measure the resistance between the stereo component speaker assembly and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H88-6 (WF1+) - Q16-1 Always Below 1 Ω
      H88-21 (WF1-) - Q16-2 Always Below 1 Ω

    13. 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
      H88-4 (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
      H88-15 (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
      H88-6 (WF1+) - Body ground Always 10 kΩ or higher
      H88-21 (WF1-) - Body ground Always 10 kΩ or higher

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  2. Click here

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A0003NWE02

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        L6-1 - L6-2 Always 3.2 to 4.8 Ω
        M5-1 - M5-2 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. 1 Speaker Assembly)

  3. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A0008URE02

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H63-1 - H63-2 Always 3.2 to 4.8 Ω
        H62-1 - H62-2 Always 3.2 to 4.8 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

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A000893E02

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J2-1 - J2-2 Always 4.0 to 6.0 Ω
        Table 3. Text in Illustration
        *a

        Component without harness connected

        (Front No. 3 Speaker Assembly)

  5. Click here

    INSPECT REAR SPEAKER ASSEMBLY


    1. A0007MHE02

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N6-1 - N6-2 Always 3.2 to 4.8 Ω
        O6-1 - O6-2 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)

  6. Click here

    INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. A0003LCE02

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q16-1 - Q16-2 Always 2.0 to 3.0 Ω
        Table 5. Text in Illustration
        *a

        Component without harness connected

        (Stereo Component Speaker Assembly)

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

    • NG

      REPLACE STEREO COMPONENT SPEAKER ASSEMBLY (Click here)