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* or speakers.


WIRING DIAGRAM


  1. for 8 Speakers

    A01G9FXE09
    A01G48UE05

  2. for 15 Speakers

    A01G763E09
    A01G726E03

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 Precaution for Navigation System Click here.

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

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

    B

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK SPEAKER (OPERATION CHECK)


    1. A01G7RC

      Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check Click here.

    2. Perform the operation check above and determine the speaker that is not operating.

      Result
      Result Proceed to
      Front No. 2 speaker assembly A
      Front No. 1 speaker assembly B
      Front No. 3 speaker assembly C
      Rear speaker assembly D
      Stereo component speaker assembly E

      Tech Tips

      If sound cannot be heard from any speaker, inspect all of them.


    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY) Click here

    D

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here

    E

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - STEREO COMPONENT SPEAKER ASSEMBLY) Click here

    A

  3. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      w/ Manual (SOS) Switch A
      w/o Manual (SOS) Switch B

    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY) Click here

    A

  4. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - TELEMATICS TRANSCEIVER - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the H101 telematics transceiver connector.

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

    4. 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
      H99-13 (FR+) - H101-2 (SPI+) Always Below 1 Ω
      H99-28 (FR-) - H101-3 (SPI-) Always Below 1 Ω

    5. 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
      H101-5 (SPO+) - H63-2 Always Below 1 Ω
      H101-6 (SPO-) - H63-1 Always Below 1 Ω

    6. 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

    7. 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

    8. 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
      H101-5 (SPO+) - Body ground Always 10 kΩ or higher
      H101-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver Click here.

    2. A01G57PE30
      Text in Illustration
      *a

      Component without harness connected

      (Telematics Transceiver)

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

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

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

      Result
      Result Proceed to
      NG A
      OK B

    B

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY Click here

    A

    REPLACE TELEMATICS TRANSCEIVER Click here

  6. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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
      H99-13 (FR+) - H63-2 Always Below 1 Ω
      H99-28 (FR-) - H63-1 Always Below 1 Ω
      H99-12 (FL+) - H62-2 Always Below 1 Ω
      H99-27 (FL-) - H62-1 Always Below 1 Ω

    4. 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly Click here.

    2. A01G9TME30
      Text in Illustration
      *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
      1 - 2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

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

  8. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-5 (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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *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
      1 - 2 Always 3.2 to 4.8 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

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

  10. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-7 (CTR+) - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly Click here.

    2. A01G9TME30
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 4.0 to 6.0 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

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

  12. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-15 (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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *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
      1 - 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

  14. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - STEREO COMPONENT SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the Q16 stereo component speaker assembly connector.

    3. 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

    4. 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
      H99-6 (WF1+) - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the stereo component speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 2.0 to 3.0 Ω

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

    OK

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

  16. CHECK SPEAKER (OPERATION CHECK)


    1. A01G7RC

      Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check Click here.

    2. Perform the operation check above and determine the speaker that is not operating.

      Result
      Result Proceed to
      Front No. 2 speaker assembly A
      Front No. 1 speaker assembly B
      Front No. 3 speaker assembly C
      Rear speaker assembly, rear No. 2 speaker assembly, rear header speaker assembly or stereo component speaker assembly D

      Tech Tips

      If sound cannot be heard from any speaker, inspect all of them.


    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY) Click here

    D

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  17. CONFIRM MODEL


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

      Result
      Result Proceed to
      w/ Manual (SOS) Switch A
      w/o Manual (SOS) Switch B

    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY) Click here

    A

  18. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - TELEMATICS TRANSCEIVER - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the H101 telematics transceiver connector.

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

    4. 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
      H99-13 (FR+) - H101-2 (SPI+) Always Below 1 Ω
      H99-28 (FR-) - H101-3 (SPI-) Always Below 1 Ω

    5. 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
      H101-5 (SPO+) - H63-2 Always Below 1 Ω
      H101-6 (SPO-) - H63-1 Always Below 1 Ω

    6. 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

    7. 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

    8. 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
      H101-5 (SPO+) - Body ground Always 10 kΩ or higher
      H101-6 (SPO-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver Click here.

    2. A01G57PE30
      Text in Illustration
      *a

      Component without harness connected

      (Telematics Transceiver)

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

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

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

      Result
      Result Proceed to
      NG A
      OK B

    B

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY Click here

    A

    REPLACE TELEMATICS TRANSCEIVER Click here

  20. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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
      H99-13 (FR+) - H63-2 Always Below 1 Ω
      H99-28 (FR-) - H63-1 Always Below 1 Ω
      H99-12 (FL+) - H62-2 Always Below 1 Ω
      H99-27 (FL-) - H62-1 Always Below 1 Ω

    4. 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly Click here.

    2. A01G9TME30
      Text in Illustration
      *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
      1 - 2 Always 6.5 to 9.7 Ω

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  22. 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 No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both the LH and RH side.


    NG

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

    OK

    END

  23. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-5 (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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  24. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *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
      1 - 2 Always 4.2 to 6.2 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

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

  25. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-7 (CTR+) - Body ground Always 10 kΩ or higher
      H99-22 (CTR-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  26. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly Click here.

    2. A01G9TME30
      Text in Illustration
      *a

      Component without harness connected

      (Front No. 3 Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 6.5 to 9.7 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  27. REPLACE FRONT NO. 3 SPEAKER ASSEMBLY


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

      OK
      Malfunction disappears.

    NG

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

    OK

    END

  28. CHECK SPEAKER (OPERATION CHECK)


    1. A01G7RC

      Enter the "System Check Mode" screen. Refer to Check Speaker in Operation Check Click here.

    2. Perform the operation check above and determine the speaker that is not operating.

      Result
      Result Proceed to
      Rear speaker assembly or rear No. 2 speaker assembly A
      Rear header speaker assembly B
      Stereo component speaker assembly C

      Tech Tips

      If sound cannot be heard from any speaker, inspect all of them.


    B

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR HEADER SPEAKER ASSEMBLY) Click here

    C

    CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - STEREO COMPONENT SPEAKER ASSEMBLY) Click here

    A

  29. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR NO. 2 SPEAKER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

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

    4. 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

    5. 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

    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
      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

    7. 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

  30. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *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
      1 - 2 Always 3.6 to 5.6 Ω

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  31. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly Click here.

    2. A01G4WPE13
      Text in Illustration
      *a

      Component without harness connected

      (Rear No. 2 Speaker Assembly)

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

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

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  32. 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 No. 2 speaker assembly is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both the LH and RH side.


    NG

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

    OK

    END

  33. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - REAR HEADER SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

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

    3. 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

    4. 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
      H99-11 (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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  34. INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly Click here.

    2. A01G98DE06
      Text in Illustration
      *a

      Component without harness connected

      (Rear Header Speaker Assembly)

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

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

    NG

    REPLACE REAR HEADER SPEAKER ASSEMBLY Click here

    OK

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

  35. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - STEREO COMPONENT SPEAKER ASSEMBLY)


    1. Disconnect the H99 stereo component amplifier assembly connector.

    2. Disconnect the Q16 stereo component speaker assembly connector.

    3. 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

    4. 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
      H99-6 (WF1+) - Body ground Always 10 kΩ or higher
      H99-21 (WF1-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  36. INSPECT STEREO COMPONENT SPEAKER ASSEMBLY


    1. Remove the stereo component speaker assembly Click here.

    2. A01G4WQE07
      Text in Illustration
      *a

      Component without harness connected

      (Stereo Component Speaker Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 5.0 to 7.0 Ω

    NG

    REPLACE STEREO COMPONENT SPEAKER ASSEMBLY Click here

    OK

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