AUDIO AND VISUAL SYSTEM (w/o Navigation System) Speaker Circuit

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.

WIRING DIAGRAM

A0161P2E01
A0160P9E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. Disconnect the connectors from the stereo component amplifier assembly and speakers.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P44-10 (WFR+) - L1-1 Always Below 1 Ω
      P44-9 (WFR-) - L1-2 Always Below 1 Ω
      P44-3 (WFL+) - M13-1 Always Below 1 Ω
      P44-8 (WFL-) - M13-2 Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P28-4 (FR+) - L2-1 (TWR+) Always Below 1 Ω
      P28-10 (FR-) - L2-3 (TWR-) Always Below 1 Ω
      P28-3 (FL+) - M4-1 (TWL+) Always Below 1 Ω
      P28-9 (FL-) - M4-3 (TWL-) Always Below 1 Ω

    4. Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      L2-2 (+) - L5-1 Always Below 1 Ω
      L2-4 (-) - L5-2 Always Below 1 Ω
      M4-2 (+) - M12-1 Always Below 1 Ω
      M4-4 (-) - M12-2 Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P44-5 (RR+) - N3-1 Always Below 1 Ω
      P44-12 (RR-) - N3-2 Always Below 1 Ω
      P44-4 (RL+) - O3-1 Always Below 1 Ω
      P44-11 (RL-) - O3-2 Always Below 1 Ω

    6. Measure the resistance between each of the rear No. 3 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      P44-2 (MR+) - N4-1 (+) Always Below 1 Ω
      P44-7 (MR-) - N4-3 (-) Always Below 1 Ω
      P44-1 (ML+) - O4-1 (+) Always Below 1 Ω
      P44-6 (ML-) - O4-3 (-) Always Below 1 Ω

    7. Measure the resistance between each of the rear No. 2 speakers and the rear No. 3 speakers to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      N4-2 (+TW) - N6-1 Always Below 1 Ω
      N4-4 (-TW) - N6-2 Always Below 1 Ω
      O4-2 (+TW) - O6-1 Always Below 1 Ω
      O4-4 (-TW) - O6-2 Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P28-1 (WF1+) - P21-1 (WF1+) Always Below 1 Ω
      P28-5 (WF1-) - P21-3 (WF1-) Always Below 1 Ω
      P28-2 (WF2+) - P21-2 (WF2+) Always Below 1 Ω
      P28-6 (WF2-) - P21-4 (WF2-) Always Below 1 Ω

    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
      P44-10 (WFR+) - Body ground Always 10 kΩ or higher
      P44-9 (WFR-) - Body ground Always 10 kΩ or higher
      P44-3 (WFL+) - Body ground Always 10 kΩ or higher
      P44-8 (WFL-) - Body ground Always 10 kΩ or higher
      P44-2 (MR+) - Body ground Always 10 kΩ or higher
      P44-7 (MR-) - Body ground Always 10 kΩ or higher
      P44-1 (ML+) - Body ground Always 10 kΩ or higher
      P44-6 (ML-) - Body ground Always 10 kΩ or higher
      P44-5 (RR+) - Body ground Always 10 kΩ or higher
      P44-12 (RR-) - Body ground Always 10 kΩ or higher
      P44-4 (RL+) - Body ground Always 10 kΩ or higher
      P44-11 (RL-) - Body ground Always 10 kΩ or higher
      P28-4 (FR+) - Body ground Always 10 kΩ or higher
      P28-10 (FR-) - Body ground Always 10 kΩ or higher
      P28-3 (FL+) - Body ground Always 10 kΩ or higher
      P28-9 (FL-) - Body ground Always 10 kΩ or higher
      P28-1 (WF1+) - Body ground Always 10 kΩ or higher
      P28-5 (WF1-) - Body ground Always 10 kΩ or higher
      P28-2 (WF2+) - Body ground Always 10 kΩ or higher
      P28-6 (WF2-) - Body ground Always 10 kΩ or higher

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L5-1 - Body ground Always 10 kΩ or higher
      L5-2 - Body ground Always 10 kΩ or higher
      M12-1 - Body ground Always 10 kΩ or higher
      M12-2 - Body ground Always 10 kΩ or higher

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N6-1 - Body ground Always 10 kΩ or higher
      N6-2 - Body ground Always 10 kΩ or higher
      O6-1 - Body ground Always 10 kΩ or higher
      O6-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER


    1. A0161OXE49
      Text in Illustration
      *1

      Component without harness connected

      (Front No. 1 Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        L1-1 - L1-2 Always 3.2 to 4.8 Ω
        M13-1 - M13-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER


    1. A0161JPE11
      Text in Illustration
      *1

      Component without harness connected

      (Front No. 2 Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        L5-1 - L5-2 Always 3.2 to 4.8 Ω
        M12-1 - M12-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER Click here

    OK

  4. INSPECT FRONT NO. 3 SPEAKER


    1. A01610CE19
      Text in Illustration
      *A for RH
      *B for LH
      *1

      Component without harness connected

      (Front No. 3 Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        L2-1 (TWR+) - L2-3 (TWR-) Always 3.2 to 4.8 Ω
        L2-1 (TWR+) - L2-2 (+) Always 10 kΩ or higher
        L2-3 (TWR-) - L2-4 (-) Always Below 1 Ω
        M4-1 (TWL+) - M4-3 (TWL-) Always 3.2 to 4.8 Ω
        M4-1 (TWL+) - M4-2 (+) Always 10 kΩ or higher
        M4-3 (TWL-) - M4-4 (-) Always Below 1 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER Click here

    OK

  5. INSPECT REAR SPEAKER


    1. A0161OXE50
      Text in Illustration
      *1

      Component without harness connected

      (Rear Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N3-1 - N3-2 Always 3.2 to 4.8 Ω
        O3-1 - O3-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE REAR SPEAKER Click here

    OK

  6. INSPECT REAR NO. 2 SPEAKER


    1. A0161JPE10
      Text in Illustration
      *1

      Component without harness connected

      (Rear No. 2 Speaker)

      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

    NG

    REPLACE REAR NO. 2 SPEAKER Click here

    OK

  7. INSPECT REAR NO. 3 SPEAKER


    1. A01610CE29
      Text in Illustration
      *1

      Component without harness connected

      (Rear No. 3 Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N4-1 (+) - N4-3 (-) Always 3.2 to 4.8 Ω
        N4-1 (+) - N4-2 (+TW) Always 10 kΩ or higher
        N4-3 (-) - N4-4 (-TW) Always Below 1 Ω
        O4-1 (+) - O4-3 (-) Always 3.2 to 4.8 Ω
        O4-1 (+) - O4-2 (+TW) Always 10 kΩ or higher
        O4-3 (-) - O4-4 (-TW) Always Below 1 Ω

    NG

    REPLACE REAR NO. 3 SPEAKER Click here

    OK

  8. INSPECT STEREO COMPONENT SPEAKER


    1. A01610CE13
      Text in Illustration
      *1

      Component without harness connected

      (Stereo Component Speaker)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P21-1 (WF1+) - P21-3 (WF1-) Always 1.6 to 2.4 Ω
        P21-2 (WF2+) - P21-4 (WF2-) Always 1.6 to 2.4 Ω

    NG

    REPLACE STEREO COMPONENT SPEAKER Click here

    OK

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