AUDIO AND VISUAL SYSTEM (w/ 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.


WIRING DIAGRAM


  1. for 10 Speakers

    A003WXQE03
    A003YQZE03

  2. for 13 Speakers

    A003WXQE03
    A003VRWE03

INSPECTION PROCEDURE

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Model Proceed to
      for 10 Speakers A
      for 13 Speakers B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


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


      • *1: w/ G-BOOK System

    2. 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
      H57-10 (FR+) - J1-1 Always Below 1 Ω
      H57-9 (FR-) - J1-2 Always Below 1 Ω

    3. 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
      H57-3 (FL+) - K1-1 Always Below 1 Ω
      H57-8 (FL-) - K1-2 Always Below 1 Ω

    4. w/o G-BOOK System:

      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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - I3-2 Always Below 1 Ω
      H58-10 (MR-) - I3-1 Always Below 1 Ω

    5. w/ G-BOOK System:

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - H145-2 (SPI+) Always Below 1 Ω
      H58-10 (MR-) - H145-3 (SPI-) Always Below 1 Ω

    6. w/ G-BOOK System:

      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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I3-2 Always Below 1 Ω
      H145-6 (SPO-) - I3-1 Always Below 1 Ω

    7. 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
      H58-3 (ML+) - I5-2 Always Below 1 Ω
      H58-9 (ML-) - I5-1 Always Below 1 Ω

    8. w/o G-BOOK System:

      Measure the resistance between the front No. 3 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
      H58-4 (MR+) - I4-2 Always Below 1 Ω
      H58-10 (MR-) - I4-1 Always Below 1 Ω

    9. w/ G-BOOK System:

      Measure the resistance between the front No. 3 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I4-2 Always Below 1 Ω
      H145-6 (SPO-) - I4-1 Always Below 1 Ω

    10. Measure the resistance between the front No. 3 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
      H58-3 (ML+) - I6-2 Always Below 1 Ω
      H58-9 (ML-) - I6-1 Always Below 1 Ω

    11. Measure the resistance between the front No. 4 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
      H58-8 (CTR+) - I2-2 Always Below 1 Ω
      H58-7 (CTR-) - I2-1 Always Below 1 Ω

    12. Measure the resistance between the rear 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
      H57-5 (RR+) - L4-1 Always Below 1 Ω
      H57-12 (RR-) - L4-2 Always Below 1 Ω

    13. Measure the resistance between the rear 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
      H57-4 (RL+) - M4-1 Always Below 1 Ω
      H57-11 (RL-) - M4-2 Always Below 1 Ω

    14. Measure the resistance between the No. 1 speaker assembly with box and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-1 (WF1+) - P15-2 (WF1+) Always Below 1 Ω
      H58-2 (WF2+) - P15-4 (WF2+) Always Below 1 Ω

    15. 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
      H57-10 (FR+) - Body ground Always 10 kΩ or higher
      H57-9 (FR-) - Body ground Always 10 kΩ or higher
      H57-3 (FL+) - Body ground Always 10 kΩ or higher
      H57-8 (FL-) - Body ground Always 10 kΩ or higher
      H57-5 (RR+) - Body ground Always 10 kΩ or higher
      H57-12 (RR-) - Body ground Always 10 kΩ or higher
      H57-4 (RL+) - Body ground Always 10 kΩ or higher
      H57-11 (RL-) - Body ground Always 10 kΩ or higher
      H58-4 (MR+) - Body ground Always 10 kΩ or higher
      H58-10 (MR-) - Body ground Always 10 kΩ or higher
      H58-3 (ML+) - Body ground Always 10 kΩ or higher
      H58-9 (ML-) - Body ground Always 10 kΩ or higher
      H58-8 (CTR+) - Body ground Always 10 kΩ or higher
      H58-7 (CTR-) - Body ground Always 10 kΩ or higher
      H58-1 (WF1+) - Body ground Always 10 kΩ or higher
      H58-2 (WF2+) - Body ground Always 10 kΩ or higher

    16. w/ G-BOOK System:

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - Body ground Always 10 kΩ or higher
      H145-6 (SPO-) - Body ground Always 10 kΩ or higher

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

      Result
      Condition Proceed to
      NG A
      OK B

    B

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR


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


      • *1: w/ G-BOOK System

    2. 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
      H57-10 (FR+) - J1-1 Always Below 1 Ω
      H57-9 (FR-) - J1-2 Always Below 1 Ω

    3. 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
      H57-3 (FL+) - K1-1 Always Below 1 Ω
      H57-8 (FL-) - K1-2 Always Below 1 Ω

    4. w/o G-BOOK System:

      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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - I3-2 Always Below 1 Ω
      H58-10 (MR-) - I3-1 Always Below 1 Ω

    5. w/ G-BOOK System:

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-4 (MR+) - H145-2 (SPI+) Always Below 1 Ω
      H58-10 (MR-) - H145-3 (SPI-) Always Below 1 Ω

    6. w/ G-BOOK System:

      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.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I3-2 Always Below 1 Ω
      H145-6 (SPO-) - I3-1 Always Below 1 Ω

    7. 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
      H58-3 (ML+) - I5-2 Always Below 1 Ω
      H58-9 (ML-) - I5-1 Always Below 1 Ω

    8. w/o G-BOOK System:

      Measure the resistance between the front No. 3 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
      H58-4 (MR+) - I4-2 Always Below 1 Ω
      H58-10 (MR-) - I4-1 Always Below 1 Ω

    9. w/ G-BOOK System:

      Measure the resistance between the front No. 3 speaker assembly RH and the telematics transceiver to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - I4-2 Always Below 1 Ω
      H145-6 (SPO-) - I4-1 Always Below 1 Ω

    10. Measure the resistance between the front No. 3 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
      H58-3 (ML+) - I6-2 Always Below 1 Ω
      H58-9 (ML-) - I6-1 Always Below 1 Ω

    11. Measure the resistance between the front No. 4 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
      H58-8 (CTR+) - I2-2 Always Below 1 Ω
      H58-7 (CTR-) - I2-1 Always Below 1 Ω

    12. Measure the resistance between the rear No. 2 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
      H57-5 (RR+) - Q10-2 (+) Always Below 1 Ω
      H57-12 (RR-) - Q10-1 (-) Always Below 1 Ω

    13. Measure the resistance between the rear 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
      H57-4 (RL+) - P14-2 (+) Always Below 1 Ω
      H57-11 (RL-) - P14-1 (-) Always Below 1 Ω

    14. Measure the resistance between the No. 1 speaker assembly with box and the stereo component amplifier assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H58-1 (WF1+) - P15-2 (WF1+) Always Below 1 Ω
      H58-2 (WF2+) - P15-4 (WF2+) Always Below 1 Ω

    15. 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
      H57-10 (FR+) - Body ground Always 10 kΩ or higher
      H57-9 (FR-) - Body ground Always 10 kΩ or higher
      H57-3 (FL+) - Body ground Always 10 kΩ or higher
      H57-8 (FL-) - Body ground Always 10 kΩ or higher
      H57-5 (RR+) - Body ground Always 10 kΩ or higher
      H57-12 (RR-) - Body ground Always 10 kΩ or higher
      H57-4 (RL+) - Body ground Always 10 kΩ or higher
      H57-11 (RL-) - Body ground Always 10 kΩ or higher
      H58-4 (MR+) - Body ground Always 10 kΩ or higher
      H58-10 (MR-) - Body ground Always 10 kΩ or higher
      H58-3 (ML+) - Body ground Always 10 kΩ or higher
      H58-9 (ML-) - Body ground Always 10 kΩ or higher
      H58-8 (CTR+) - Body ground Always 10 kΩ or higher
      H58-7 (CTR-) - Body ground Always 10 kΩ or higher
      H58-1 (WF1+) - Body ground Always 10 kΩ or higher
      H58-2 (WF2+) - Body ground Always 10 kΩ or higher

    16. w/ G-BOOK System:

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H145-5 (SPO+) - Body ground Always 10 kΩ or higher
      H145-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A003VXKE03
      Text in Illustration
      *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
        for 10 Speakers
        Tester Connection Condition Specified Condition
        J1-1 - J1-2 Always 3.2 to 4.8 Ω
        K1-1 - K1-2 Always 3.2 to 4.8 Ω
        for 13 Speakers
        Tester Connection Condition Specified Condition
        J1-1 - J1-2 Always 5 to 7 Ω
        K1-1 - K1-2 Always 5 to 7 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  5. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A003ZD0E01
      Text in Illustration
      *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
        for 10 Speakers
        Tester Connection Condition Specified Condition
        I3-2 - I3-1 Always 3.2 to 4.8 Ω
        I5-2 - I5-1 Always 3.2 to 4.8 Ω
        for 13 Speakers
        Tester Connection Condition Specified Condition
        I3-2 - I3-1 Always 4.6 to 7 Ω
        I5-2 - I5-1 Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  6. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A003V6JE01
      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
        I4-2 - I4-1 Always 10 kΩ or higher
        I6-2 - I6-1 Always 10 kΩ or higher

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  7. 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 assemblies that were disconnected.

      • When there is a possibility that either the right or left 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 FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY WAS DEFECTIVE)

  8. INSPECT FRONT NO. 4 SPEAKER ASSEMBLY


    1. A003ZD0E22
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 4 Speaker Assembly)

      Resistance check


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

        Standard Resistance
        for 10 Speakers
        Tester Connection Condition Specified Condition
        I2-1 - I2-2 Always 3.2 to 4.8 Ω
        for 13 Speakers
        Tester Connection Condition Specified Condition
        I2-1 - I2-2 Always 4.6 to 7 Ω

    NG

    REPLACE FRONT NO. 4 SPEAKER ASSEMBLY Click here

    OK

  9. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Model Proceed to
      for 10 Speakers A
      for 13 Speakers B

    B

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY Click here

    A

  10. INSPECT REAR SPEAKER ASSEMBLY


    1. A003VXKE06
      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
        L4-1 - L4-2 Always 3.2 to 4.8 Ω
        M4-1 - M4-2 Always 3.2 to 4.8 Ω

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

      Result
      Condition Proceed to
      NG A
      OK B

    B

    INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX Click here

    A

    REPLACE REAR SPEAKER ASSEMBLY Click here

  11. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. A003ZD0E03
      Text in Illustration
      *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
        Q10-1 (-) - Q10-2 (+) Always 4.6 to 7 Ω
        P14-1 (-) - P14-2 (+) Always 4.6 to 7 Ω

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  12. INSPECT NO. 1 SPEAKER ASSEMBLY WITH BOX


    1. A003ZDME01
      Text in Illustration
      *a

      Component without harness connected

      (No. 1 Speaker Assembly with Box)

      Resistance check


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

        Standard Resistance
        for 10 Speakers
        Tester Connection Condition Specified Condition
        P15-2 (WF1+) - P15-4 (WF2+) Always 1.6 to 2.4 Ω
        for 13 Speakers
        Tester Connection Condition Specified Condition
        P15-2 (WF1+) - P15-4 (WF2+) Always 11.6 to 12.4 Ω

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

      Result
      Condition Proceed to
      OK (w/ G-BOOK System) A
      OK (w/o G-BOOK System) B
      NG C

    B

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

    C

    REPLACE NO. 1 SPEAKER ASSEMBLY WITH BOX Click here

    A

  13. INSPECT TELEMATICS TRANSCEIVER


    1. A003WMKE22
      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
        H145-2 (SPI+) - H145-5 (SPO+) Always Below 1 Ω
        H145-3 (SPI-) - H145-6 (SPO-) Always Below 1 Ω
        H145-2 (SPI+) - H145-3 (SPI-) Always 10 kΩ or higher
        H145-5 (SPO+) - H145-6 (SPO-) Always 10 kΩ or higher
        H145-2 (SPI+) - Body ground Always 10 kΩ or higher
        H145-3 (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