NAVIGATION SYSTEM (for Navigation Receiver Type) Speaker Circuit

DESCRIPTION

WIRING DIAGRAM

A011YERE02
A011XM5E02

INSPECTION PROCEDURE

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR

    1. Disconnect the connectors from the stereo component amplifier assembly, DCM (telematics transceiver)*1 and speakers.

      • *1: w/ Manual (SOS) Switch

    2. w/ Manual (SOS) Switch

      Measure the resistance between the stereo component amplifier assembly and the DCM (telematics transceiver) to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I68-15 (FR+) - I135-2 (SPI+) Always Below 1 Ω
      I68-30 (FR-) - I135-3 (SPI-) Always Below 1 Ω

    3. w/ Manual (SOS) Switch

      Measure the resistance between the front No. 1 speaker assembly RH and the DCM (telematics transceiver) to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J5-1 (+) - I135-5 (SPO+) Always Below 1 Ω
      J5-2 (-) - I135-6 (SPO-) Always Below 1 Ω

    4. w/o Manual (SOS) Switch

      Measure the resistance between the front No. 1 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
      I68-15 (FR+) - J5-1 (+) Always Below 1 Ω
      I68-30 (FR-) - J5-2 (-) Always Below 1 Ω

    5. Measure the resistance between the front No. 1 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
      I68-11 (FL+) - K5-1 (+) Always Below 1 Ω
      I68-26 (FL-) - K5-2 (-) Always Below 1 Ω

    6. Measure the resistance between each of 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
      I68-12 (TWR+) - I84-4 Always Below 1 Ω
      I68-27 (TWR-) - I84-3 Always Below 1 Ω
      I68-14 (TWL+) - I2-4 Always Below 1 Ω
      I68-29 (TWL-) - I2-3 Always Below 1 Ω

    7. 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
      I68-13 (CTR+) - I60-2 Always Below 1 Ω
      I68-28 (CTR-) - I60-1 Always Below 1 Ω

    8. 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
      I68-10 (SR+) - O19-2 Always Below 1 Ω
      I68-25 (SR-) - O19-1 Always Below 1 Ω
      I68-9 (SL+) - O20-2 Always Below 1 Ω
      I68-24 (SL-) - O20-1 Always Below 1 Ω

    9. Measure the resistance between the rear 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
      I68-8 (WF1+) - O22-1 Always Below 1 Ω
      I68-23 (WF1-) - O22-2 Always Below 1 Ω

    10. 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
      I68-15 (FR+) - Body ground Always 10 kΩ or higher
      I68-30 (FR-) - Body ground Always 10 kΩ or higher
      I68-11 (FL+) - Body ground Always 10 kΩ or higher
      I68-26 (FL-) - Body ground Always 10 kΩ or higher
      I68-12 (TWR+) - Body ground Always 10 kΩ or higher
      I68-27 (TWR-) - Body ground Always 10 kΩ or higher
      I68-14 (TWL+) - Body ground Always 10 kΩ or higher
      I68-29 (TWL-) - Body ground Always 10 kΩ or higher
      I68-13 (CTR+) - Body ground Always 10 kΩ or higher
      I68-28 (CTR-) - Body ground Always 10 kΩ or higher
      I68-10 (SR+) - Body ground Always 10 kΩ or higher
      I68-25 (SR-) - Body ground Always 10 kΩ or higher
      I68-9 (SL+) - Body ground Always 10 kΩ or higher
      I68-24 (SL-) - Body ground Always 10 kΩ or higher
      I68-8 (WF1+) - Body ground Always 10 kΩ or higher
      I68-23 (WF1-) - Body ground Always 10 kΩ or higher

    11. w/ Manual (SOS) Switch

      Measure the resistance between the DCM (telematics transceiver) and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I135-5 (SPO+) - Body ground Always 10 kΩ or higher
      I135-6 (SPO-) - Body ground Always 10 kΩ or higher
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

    1. Resistance check

      A011VG1E40

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J5-1 (+) - J5-2 (-) Always 4.6 to 6.6 Ω
        K5-1 (+) - K5-2 (-) Always 4.6 to 6.6 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 1 Speaker Assembly)
    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z6EE19

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I84-4 - I84-3 Always 3.4 to 5.2 Ω
        I2-4 - I2-3 Always 3.4 to 5.2 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 2 Speaker Assembly)
    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z18E14

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I60-1 - I60-2 Always 6.8 to 10.2 Ω
        Text in Illustration
        *a

        Component without harness connected

        (Front No. 3 Speaker Assembly)
    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT REAR NO. 2 SPEAKER ASSEMBLY

    1. Resistance check

      A011Z18E15

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O19-1 - O19-2 Always 6.8 to 10.2 Ω
        O20-1 - O20-2 Always 6.8 to 10.2 Ω
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear No. 2 Speaker Assembly)
    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT REAR SPEAKER ASSEMBLY

    1. Resistance check

      A011VG1E35

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O22-1 - O22-2 Always 4.8 to 6.8 Ω
        Text in Illustration
        *a

        Component without harness connected

        (Rear Speaker Assembly)

    2. Proceed to the next step based on the inspection result.

      Result
      Condition Proceed to
      OK (w/ Manual (SOS) Switch) A
      OK (w/o Manual (SOS) Switch) B
      NG C
    B

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

    C

    REPLACE REAR SPEAKER ASSEMBLY Click here

    A

  7. INSPECT DCM (TELEMATICS TRANSCEIVER)

    1. Resistance check

      A011YDRE16

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I135-2 (SPI+) - I135-5 (SPO+) Always Below 1 Ω
        I135-3 (SPI-) - I135-6 (SPO-) Always Below 1 Ω
        I135-2 (SPI+) - I135-3 (SPI-) Always 10 kΩ or higher
        I135-5 (SPO+) - I135-6 (SPO-) Always 10 kΩ or higher
        I135-2 (SPI+) - Body ground Always 10 kΩ or higher
        I135-3 (SPI-) - Body ground Always 10 kΩ or higher
        Text in Illustration
        *a

        Component without harness connected

        (DCM (Telematics Transceiver))
    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

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