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, telematics transceiver*1 or speakers.

*1: w/ Telematics Transceiver

WIRING DIAGRAM


  1. for 8 Speakers

    A01G6JEE12
    A01G7ERE15

  2. for 15 Speakers

    A01G763E03
    A01G726E01

INSPECTION PROCEDURE

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precautions for Navigation System Click here.

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Model Proceed to
      for 8 Speakers A
      for 15 Speakers B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

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

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

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

    6. Disconnect the Q16 stereo component speaker assembly connector.

    7. Disconnect the H101 telematics transceiver connector (w/ Telematics Transceiver).

    8. 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 (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H99-13 (FR+) - H63-2 Always Below 1 Ω
      H99-28 (FR-) - H63-1 Always Below 1 Ω

    9. Measure the resistance between the stereo component amplifier assembly and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H99-13 (FR+) - H101-2 (SPI+) Always Below 1 Ω
      H99-28 (FR-) - H101-3 (SPI-) Always Below 1 Ω

    10. Measure the resistance between the front No. 2 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H101-5 (SPO+) - H63-2 Always Below 1 Ω
      H101-6 (SPO-) - H63-1 Always Below 1 Ω

    11. 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
      H99-12 (FL+) - H62-2 Always Below 1 Ω
      H99-27 (FL-) - H62-1 Always Below 1 Ω

    12. 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
      H99-5 (WFR+) - L6-1 Always Below 1 Ω
      H99-20 (WFR-) - L6-2 Always Below 1 Ω
      H99-4 (WFL+) - M5-1 Always Below 1 Ω
      H99-19 (WFL-) - M5-2 Always Below 1 Ω

    13. 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
      H99-7 (CTR+) - J2-2 Always Below 1 Ω
      H99-22 (CTR-) - J2-1 Always Below 1 Ω

    14. 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
      H99-15 (RR+) - N6-1 Always Below 1 Ω
      H99-30 (RR-) - N6-2 Always Below 1 Ω
      H99-14 (RL+) - O6-1 Always Below 1 Ω
      H99-29 (RL-) - O6-2 Always Below 1 Ω

    15. 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
      H99-6 (WF1+) - Q16-1 Always Below 1 Ω
      H99-21 (WF1-) - Q16-2 Always Below 1 Ω

    16. 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
      H99-13 (FR+) - Body ground Always 10 kΩ or higher
      H99-28 (FR-) - Body ground Always 10 kΩ or higher
      H99-12 (FL+) - Body ground Always 10 kΩ or higher
      H99-27 (FL-) - Body ground Always 10 kΩ or higher
      H99-5 (WFR+) - Body ground Always 10 kΩ or higher
      H99-20 (WFR-) - Body ground Always 10 kΩ or higher
      H99-4 (WFL+) - Body ground Always 10 kΩ or higher
      H99-19 (WFL-) - Body ground Always 10 kΩ or higher
      H99-7 (CTR+) - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) - Body ground Always 10 kΩ or higher
      H99-15 (RR+) - Body ground Always 10 kΩ or higher
      H99-30 (RR-) - Body ground Always 10 kΩ or higher
      H99-14 (RL+) - Body ground Always 10 kΩ or higher
      H99-29 (RL-) - Body ground Always 10 kΩ or higher
      H99-6 (WF1+) - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) - Body ground Always 10 kΩ or higher

    17. Measure the resistance between the front No. 2 speaker assembly RH and body ground to check for a short circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H63-1 - Body ground Always 10 kΩ or higher
      H63-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01G8RSE95
      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
        L6-1 - L6-2 Always 3.2 to 4.8 Ω
        M5-1 - M5-2 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. A01G6RCE30
      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
        H63-1 - H63-2 Always 3.2 to 4.8 Ω
        H62-1 - H62-2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A01G6RCE31
      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
        J2-1 - J2-2 Always 4.0 to 6.0 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT REAR SPEAKER ASSEMBLY


    1. A01G8RSE96
      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
        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 SPEAKER ASSEMBLY Click here

    OK

  7. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. A01G8RSE97
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

      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

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

      Result
      Result Proceed to
      NG A
      OK (w/ Telematics Transceiver) B
      OK (w/o Telematics Transceiver) C

    B

    INSPECT TELEMATICS TRANSCEIVER Click here

    C

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

    A

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the H101 telematics transceiver connector (w/ Telematics Transceiver).

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

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

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

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

    7. Disconnect the N7 and O7 rear No. 2 speaker assembly connectors.

    8. Disconnect the Q15 and P32 rear header speaker assembly connectors.

    9. Disconnect the Q16 stereo component speaker assembly connector.

    10. Measure the resistance between the stereo component amplifier assembly and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H99-13 (FR+) - H101-2 (SPI+) Always Below 1 Ω
      H99-28 (FR-) - H101-3 (SPI-) Always Below 1 Ω

    11. Measure the resistance between the front No. 2 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H101-5 (SPO+) - H63-2 Always Below 1 Ω
      H101-6 (SPO-) - H63-1 Always Below 1 Ω

    12. 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 (w/o Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H99-13 (FR+) - H63-2 Always Below 1 Ω
      H99-28 (FR-) - H63-1 Always Below 1 Ω

    13. 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
      H99-12 (FL+) - H62-2 Always Below 1 Ω
      H99-27 (FL-) - H62-1 Always Below 1 Ω

    14. 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
      H99-5 (WFR+) - L6-1 Always Below 1 Ω
      H99-20 (WFR-) - L6-2 Always Below 1 Ω
      H99-4 (WFL+) - M5-1 Always Below 1 Ω
      H99-19 (WFL-) - M5-2 Always Below 1 Ω

    15. 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
      H99-7 (CTR+) - J2-2 Always Below 1 Ω
      H99-22 (CTR-) - J2-1 Always Below 1 Ω

    16. 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
      H99-15 (RR+) - N7-3 (+TW) Always Below 1 Ω
      H99-30 (RR-) - N7-1 (-TW) Always Below 1 Ω
      H99-14 (RL+) - O7-3 (+TW) Always Below 1 Ω
      H99-29 (RL-) - O7-1 (-TW) Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N6-1 - N7-4 (+) Always Below 1 Ω
      N6-2 - N7-2 (-) Always Below 1 Ω
      O6-1 - O7-4 (+) Always Below 1 Ω
      O6-2 - O7-2 (-) Always Below 1 Ω

    18. Measure the resistance between each of the rear header 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
      H99-11 (SR+) - Q15-2 Always Below 1 Ω
      H99-26 (SR-) - Q15-1 Always Below 1 Ω
      H99-10 (SL+) - P32-2 Always Below 1 Ω
      H99-25 (SL-) - P32-1 Always Below 1 Ω

    19. 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
      H99-6 (WF1+) - Q16-1 Always Below 1 Ω
      H99-21 (WF1-) - Q16-2 Always Below 1 Ω

    20. 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
      H99-13 (FR+) - Body ground Always 10 kΩ or higher
      H99-28 (FR-) - Body ground Always 10 kΩ or higher
      H99-12 (FL+) - Body ground Always 10 kΩ or higher
      H99-27 (FL-) - Body ground Always 10 kΩ or higher
      H99-5 (WFR+) - Body ground Always 10 kΩ or higher
      H99-20 (WFR-) - Body ground Always 10 kΩ or higher
      H99-4 (WFL+) - Body ground Always 10 kΩ or higher
      H99-19 (WFL-) - Body ground Always 10 kΩ or higher
      H99-7 (CTR+) - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) - Body ground Always 10 kΩ or higher
      H99-15 (RR+) - Body ground Always 10 kΩ or higher
      H99-30 (RR-) - Body ground Always 10 kΩ or higher
      H99-14 (RL+) - Body ground Always 10 kΩ or higher
      H99-29 (RL-) - Body ground Always 10 kΩ or higher
      H99-11 (SR+) - Body ground Always 10 kΩ or higher
      H99-26 (SR-) - Body ground Always 10 kΩ or higher
      H99-10 (SL+) - Body ground Always 10 kΩ or higher
      H99-25 (SL-) - Body ground Always 10 kΩ or higher
      H99-6 (WF1+) - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) - Body ground Always 10 kΩ or higher

    21. Measure the resistance between the front No. 2 speaker assembly RH and body ground to check for a short circuit in the wire harness (w/ Telematics Transceiver).

      Standard Resistance
      Tester Connection Condition Specified Condition
      H63-1 - Body ground Always 10 kΩ or higher
      H63-2 - Body ground Always 10 kΩ or higher

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N7-4 (+) - Body ground Always 10 kΩ or higher
      N7-2 (-) - Body ground Always 10 kΩ or higher
      O7-4 (+) - Body ground Always 10 kΩ or higher
      O7-2 (-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01G8RSE95
      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
        L6-1 - L6-2 Always 4.2 to 6.2 Ω
        M5-1 - M5-2 Always 4.2 to 6.2 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  10. 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

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  11. REPLACE FRONT NO. 3 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. 3 speaker assembly that were disconnected.


    NG

    INSPECT REAR SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY WAS DEFECTIVE)

  12. INSPECT REAR SPEAKER ASSEMBLY


    1. A01G8RSE96
      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
        N6-1 - N6-2 Always 3.6 to 5.6 Ω
        O6-1 - O6-2 Always 3.6 to 5.6 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  13. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. A01G4WPE12
      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
        N7-3 (+TW) - N7-1 (-TW) Always 10 kΩ or higher
        N7-3 (+TW) - N7-4 (+) Always Below 1 Ω
        N7-1 (-TW) - N7-2 (-) Always Below 1 Ω
        O7-3 (+TW) - O7-1 (-TW) Always 10 kΩ or higher
        O7-3 (+TW) - O7-4 (+) Always Below 1 Ω
        O7-1 (-TW) - O7-2 (-) Always Below 1 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  14. REPLACE REAR 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 rear No. 2 speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left rear 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 HEADER SPEAKER ASSEMBLY Click here

    OK

    END (REAR NO. 2 SPEAKER ASSEMBLY WAS DEFECTIVE)

  15. INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. A01G98DE05
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Component without harness connected

      (Rear Header Speaker Assembly)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q15-1 - Q15-2 Always 7.0 to 10.6 Ω
        P32-1 - P32-2 Always 7.0 to 10.6 Ω

    NG

    REPLACE REAR HEADER SPEAKER ASSEMBLY Click here

    OK

  16. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. A01G8RSE97
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

      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 5.0 to 7.0 Ω

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

      Result
      Result Proceed to
      OK (w/ Telematics Transceiver) A
      OK (w/o Telematics Transceiver) B
      NG C

    B

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

    C

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

    A

  17. INSPECT TELEMATICS TRANSCEIVER


    1. A01G57PE27
      Text in Illustration
      *a

      Component without harness connected

      (Telematics Transceiver)

      Resistance check


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

        Standard Resistance
        Tester Connection Condition Specified Condition
        H101-2 (SPI+) - H101-5 (SPO+) Always Below 1 Ω
        H101-3 (SPI-) - H101-6 (SPO-) Always Below 1 Ω
        H101-2 (SPI+) - H101-3 (SPI-) Always 10 kΩ or higher
        H101-5 (SPO+) - H101-6 (SPO-) Always 10 kΩ or higher
        H101-3 (SPI-) - Body ground Always 10 kΩ or higher
        H101-2 (SPI+) - Body ground Always 10 kΩ or higher

    NG

    REPLACE TELEMATICS TRANSCEIVER Click here

    OK

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