NAVIGATION SYSTEM (for Navigation Receiver Type) Speaker Circuit

DESCRIPTION


WIRING DIAGRAM

A01J9YUE01
A01JD3KE09

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 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
      L142-15 (WFR+) - N1-1 Always Below 1 Ω
      L142-30 (WFR-) - N1-2 Always Below 1 Ω
      L142-8 (WFL+) - O1-1 Always Below 1 Ω
      L142-23 (WFL-) - O1-2 Always Below 1 Ω

    3. Measure the resistance between the front No. 2 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
      L142-9 (FR+) - I4-1 Always Below 1 Ω
      L142-24 (FR-) - I4-2 Always Below 1 Ω
      L142-14 (FL+) - I5-1 Always Below 1 Ω
      L142-29 (FL-) - I5-2 Always Below 1 Ω

    4. 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
      L142-12 (RR+) - P3-1 Always Below 1 Ω
      L142-27 (RR-) - P3-2 Always Below 1 Ω
      L142-11 (RL+) - Q3-1 Always Below 1 Ω
      L142-26 (RL-) - Q3-2 Always Below 1 Ω

    5. Measure the resistance between each of the rear No. 2 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
      L142-13 (TWR+) - P5-1 Always Below 1 Ω
      L142-28 (TWR-) - P5-2 Always Below 1 Ω
      L142-10 (TWL+) - Q5-1 Always Below 1 Ω
      L142-25 (TWL-) - Q5-2 Always Below 1 Ω

    6. 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
      L142-15 (WFR+) - Body ground Always 10 kΩ or higher
      L142-30 (WFR-) - Body ground Always 10 kΩ or higher
      L142-8 (WFL+) - Body ground Always 10 kΩ or higher
      L142-23 (WFL-) - Body ground Always 10 kΩ or higher
      L142-9 (FR+) - Body ground Always 10 kΩ or higher
      L142-24 (FR-) - Body ground Always 10 kΩ or higher
      L142-14 (FL+) - Body ground Always 10 kΩ or higher
      L142-29 (FL-) - Body ground Always 10 kΩ or higher
      L142-12 (RR+) - Body ground Always 10 kΩ or higher
      L142-27 (RR-) - Body ground Always 10 kΩ or higher
      L142-11 (RL+) - Body ground Always 10 kΩ or higher
      L142-26 (RL-) - Body ground Always 10 kΩ or higher
      L142-13 (TWR+) - Body ground Always 10 kΩ or higher
      L142-28 (TWR-) - Body ground Always 10 kΩ or higher
      L142-10 (TWL+) - Body ground Always 10 kΩ or higher
      L142-25 (TWL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01JC47E21
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Front No. 1 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N1-1 - N1-2 Always 4.6 to 6.6 Ω
        O1-1 - O1-2 Always 4.6 to 6.6 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A01JBHCE03
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Front No. 2 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I4-1 - I4-2 Always 3.2 to 4.8 Ω
        I5-1 - I5-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT REAR SPEAKER ASSEMBLY


    1. A01JC47E22
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Rear Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P3-1 - P3-2 Always 3.2 to 5.2 Ω
        Q3-1 - Q3-2 Always 3.2 to 5.2 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. A01JB0YE06
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Rear No. 2 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P5-1 - P5-2 Always 3.2 to 4.8 Ω
        Q5-1 - Q5-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

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