NAVIGATION SYSTEM (for Radio and Display Type) Speaker Circuit

DESCRIPTION



WIRING DIAGRAM


  1. for 6 Speakers

    A01HTF2E13

  2. for 10 Speakers

    A01HTZSE07
    A01HUFME08

INSPECTION PROCEDURE

PROCEDURE


  1. CONFIRM MODEL

    Result
    Result Proceed to
    for 6 Speakers A
    for 10 Speakers B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the connectors from the radio and display receiver assembly and speakers.

    2. Measure the resistance between each of the front No. 2 speaker assemblies and the radio and display receiver assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I152-1 (FR+) - I83-4 (TWR+) Always Below 1 Ω
      I152-5 (FR-) - I84-2 (TWR-) Always Below 1 Ω
      I152-2 (FL+) - I1-4 (TWL+) Always Below 1 Ω
      I152-6 (FL-) - I1-2 (TWL-) Always Below 1 Ω

    3. Measure the resistance between each of the front No. 1 speaker assemblies and the front No. 2 speaker assemblies to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I83-3 (+) - J5-1 Always Below 1 Ω
      I83-1 (-) - J5-2 Always Below 1 Ω
      I1-3 (+) - K5-1 Always Below 1 Ω
      I1-1 (-) - K5-2 Always Below 1 Ω

    4. Measure the resistance between each of the rear speaker assemblies and the radio and display receiver assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I153-1 (RR+) - O18-1 Always Below 1 Ω
      I153-3 (RR-) - O18-2 Always Below 1 Ω
      I153-2 (RL+) - O21-1 Always Below 1 Ω
      I153-6 (RL-) - O21-2 Always Below 1 Ω

    5. Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I152-1 (FR+) - Body ground Always 10 kΩ or higher
      I152-5 (FR-) - Body ground Always 10 kΩ or higher
      I152-2 (FL+) - Body ground Always 10 kΩ or higher
      I152-6 (FL-) - Body ground Always 10 kΩ or higher
      I153-1 (RR+) - Body ground Always 10 kΩ or higher
      I153-3 (RR-) - Body ground Always 10 kΩ or higher
      I153-2 (RL+) - Body ground Always 10 kΩ or higher
      I153-6 (RL-) - Body ground Always 10 kΩ or higher

    6. 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
      I83-3 (+) - Body ground Always 10 kΩ or higher
      I83-1 (-) - Body ground Always 10 kΩ or higher
      I1-3 (+) - Body ground Always 10 kΩ or higher
      I1-1 (-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01HVFEE47
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 1 Speaker Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        J5-1 - J5-2 Always 3.2 to 4.8 Ω
        K5-1 - K5-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Resistance check


      1. A01HUL2E17
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Front No. 2 Speaker Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        I83-2 (TWR-) - I83-4 (TWR+) Always 10 kΩ or higher
        I83-1 (-) - I83-2 (TWR-) Always Below 1 Ω
        I83-3 (+) - I83-4 (TWR+) Always Below 1 Ω
        I1-2 (TWL-) - I1-4 (TWL+) Always 10 kΩ or higher
        I1-1 (-) - I1-2 (TWL-) Always Below 1 Ω
        I1-3 (+) - I1-4 (TWL+) Always Below 1 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. REPLACE FRONT NO. 2 SPEAKER ASSEMBLY


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

      OK
      Malfunction disappears.

      Tech Tips


      • 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.


    NG

    INSPECT REAR SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  6. INSPECT REAR SPEAKER ASSEMBLY


    1. Resistance check


      1. A01HVFEE48
        Text in Illustration
        *A for RH
        *B for LH
        *a

        Component without harness connected

        (Rear Speaker Assembly)

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        O18-1 - O18-2 Always 3.2 to 4.8 Ω
        O21-1 - O21-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

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

  7. 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

  8. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01HVFEE53
      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
        J5-1 (+) - J5-2 (-) Always 4.6 to 6.6 Ω
        K5-1 (+) - K5-2 (-) Always 4.6 to 6.6 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  9. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A01HSQEE24
      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
        I84-4 - I84-3 Always 3.4 to 5.2 Ω
        I2-4 - I2-3 Always 3.4 to 5.2 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  10. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A01HSYRE20
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

      Resistance check


      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

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  11. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. A01HSYRE21
      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
        O19-1 - O19-2 Always 6.8 to 10.2 Ω
        O20-1 - O20-2 Always 6.8 to 10.2 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  12. INSPECT REAR SPEAKER ASSEMBLY


    1. A01HVFEE49
      Text in Illustration
      *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
        O22-1 - O22-2 Always 4.8 to 6.8 Ω

    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

  13. INSPECT DCM (TELEMATICS TRANSCEIVER)


    1. A01HV4PE20
      Text in Illustration
      *a

      Component without harness connected

      (DCM (Telematics Transceiver))

      Resistance check


      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

    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER) Click here

    OK

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