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NAVIGATION SYSTEM Speaker Circuit

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DTC Code DTC Name
  Speaker Circuit
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DESCRIPTION

If there is a short in a speaker circuit, the stereo component amplifier assembly detects it 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.

*: w/ Manual (SOS) Switch

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WIRING DIAGRAM


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  1. B0065NAE10
    B00658GE01

    for 10 Speakers

  2. B0067GSE02
    B0065A2E05

    for 17 Speakers

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CAUTION / NOTICE / HINT

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.

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PROCEDURE


  1. Click here

    CHECK MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 10 Speakers A
      for 17 Speakers B

  2. Click here

    CHECK SPEAKER (OPERATION CHECK)


    1. A01VO7G

      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
      Not Operating Speaker Proceed to
      Front No. 2 speaker assembly A
      Front No. 1 speaker assembly B
      Front No. 3 speaker assembly C
      Rear speaker assembly D
      Rear No. 3 speaker assembly E
      Tip:

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


  3. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O54 and O55 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
      T20-13 (FR+) - O54-2 (+) Always Below 1 Ω
      T20-28 (FR-) - O54-1 (-) Always Below 1 Ω
      T20-12 (FL+) - O55-2 (+) Always Below 1 Ω
      T20-27 (FL-) - O55-1 (-) 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
      T20-13 (FR+) - Body ground Always 10 kΩ or higher
      T20-28 (FR-) - Body ground Always 10 kΩ or higher
      T20-12 (FL+) - Body ground Always 10 kΩ or higher
      T20-27 (FL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. B0065TNC23
      *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
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE FRONT NO. 2 SPEAKER ASSEMBLYClick here

  5. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the R14 and S14 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
      T20-5 (WFR+) - R14-1 Always Below 1 Ω
      T20-20 (WFR-) - R14-2 Always Below 1 Ω
      T20-4 (WFL+) - S14-1 Always Below 1 Ω
      T20-19 (WFL-) - S14-2 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
      T20-5 (WFR+) - Body ground Always 10 kΩ or higher
      T20-20 (WFR-) - Body ground Always 10 kΩ or higher
      T20-4 (WFL+) - Body ground Always 10 kΩ or higher
      T20-19 (WFL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Click here

    2. B00650YC01
      *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
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE FRONT NO. 1 SPEAKER ASSEMBLYClick here

  7. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O56 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
      T20-7 (CTR+) - O56-2 (+) Always Below 1 Ω
      T20-22 (CTR-) - O56-1 (-) 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
      T20-7 (CTR+) - Body ground Always 10 kΩ or higher
      T20-22 (CTR-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. Click here

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

      Click here

    2. B0065TNC23
      *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
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE FRONT NO. 3 SPEAKER ASSEMBLYClick here

  9. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the T25 and U35 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
      T20-15 (RR+) - T25-1 Always Below 1 Ω
      T20-30 (RR-) - T25-2 Always Below 1 Ω
      T20-14 (RL+) - U35-1 Always Below 1 Ω
      T20-29 (RL-) - U35-2 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
      T20-15 (RR+) - Body ground Always 10 kΩ or higher
      T20-30 (RR-) - Body ground Always 10 kΩ or higher
      T20-14 (RL+) - Body ground Always 10 kΩ or higher
      T20-29 (RL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. Click here

    INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. B00650YC01
      *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
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE REAR SPEAKER ASSEMBLYClick here

  11. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the T24 rear No. 3 speaker assembly connector.

    3. Measure the resistance between the rear 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
      T20-6 (WF1+) - T24-1 Always Below 1 Ω
      T20-21 (WF1-) - T24-2 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
      T20-6 (WF1+) - Body ground Always 10 kΩ or higher
      T20-21 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. Click here

    INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly.

      Click here

    2. B00650YC01
      *a

      Component without harness connected

      (Rear 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 2.0 to 3.0 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE REAR NO. 3 SPEAKER ASSEMBLYClick here

  13. Click here

    CHECK SPEAKER (OPERATION CHECK)


    1. A01VO7G

      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
      Not Operating Speaker Proceed to
      Front No. 2 speaker assembly (w/ Manual (SOS) Switch) A
      Front No. 2 speaker assembly (w/o Manual (SOS) Switch) B
      Front No. 1 speaker assembly C
      Front No. 3 speaker assembly D
      Rear speaker assembly or rear No. 2 speaker assembly E
      Rear header speaker assembly F
      Rear No. 3 speaker assembly G
      Tip:

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


  14. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O65 telematics transceiver connector.

    3. Disconnect the O54 and O55 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
      T20-13 (FR+) - O65-2 (SPI+) Always Below 1 Ω
      T20-28 (FR-) - O65-3 (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
      O65-5 (SPO+) - O54-2 (+) Always Below 1 Ω
      O65-6 (SPO-) - O54-1 (-) 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
      T20-12 (FL+) - O55-2 (+) Always Below 1 Ω
      T20-27 (FL-) - O55-1 (-) 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
      T20-13 (FR+) - Body ground Always 10 kΩ or higher
      T20-28 (FR-) - Body ground Always 10 kΩ or higher
      T20-12 (FL+) - Body ground Always 10 kΩ or higher
      T20-27 (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
      O65-5 (SPO+) - Body ground Always 10 kΩ or higher
      O65-6 (SPO-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. B0065TNC23
      *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
      Result
      Proceed to
      OK
      NG

  16. Click here

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a new or known good speaker is installed.

      Click here

      OK
      Malfunction disappears.
      Tip:

      • 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.

      Result
      Proceed to
      OK
      NG

  17. Click here

    INSPECT TELEMATICS TRANSCEIVER


    1. Remove the telematics transceiver.

      Click here

    2. B00651DC05
      *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
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE TELEMATICS TRANSCEIVERClick here

  18. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O54 and O55 front No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T20-13 (FR+) - O54-2 (+) Always Below 1 Ω
      T20-28 (FR-) - O54-1 (-) Always Below 1 Ω
      T20-12 (FL+) - O55-2 (+) Always Below 1 Ω
      T20-27 (FL-) - O55-1 (-) 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
      T20-13 (FR+) - Body ground Always 10 kΩ or higher
      T20-28 (FR-) - Body ground Always 10 kΩ or higher
      T20-12 (FL+) - Body ground Always 10 kΩ or higher
      T20-27 (FL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  19. Click here

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. B0065TNC23
      *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
      Result
      Proceed to
      OK
      NG

  20. Click here

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a new or known good speaker is installed.

      Click here

      OK
      Malfunction disappears.
      Tip:

      • 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.

      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  21. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the R14 and S14 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
      T20-5 (WFR+) - R14-1 Always Below 1 Ω
      T20-20 (WFR-) - R14-2 Always Below 1 Ω
      T20-4 (WFL+) - S14-1 Always Below 1 Ω
      T20-19 (WFL-) - S14-2 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
      T20-5 (WFR+) - Body ground Always 10 kΩ or higher
      T20-20 (WFR-) - Body ground Always 10 kΩ or higher
      T20-4 (WFL+) - Body ground Always 10 kΩ or higher
      T20-19 (WFL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  22. Click here

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Click here

    2. B00650YC01
      *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 4.3 to 6.3 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE FRONT NO. 1 SPEAKER ASSEMBLYClick here

  23. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the O56 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
      T20-7 (CTR+) - O56-2 (+) Always Below 1 Ω
      T20-22 (CTR-) - O56-1 (-) 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
      T20-7 (CTR+) - Body ground Always 10 kΩ or higher
      T20-22 (CTR-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  24. Click here

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

      Click here

    2. B0065TNC23
      *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
      Result
      Proceed to
      OK
      NG

  25. Click here

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a new or known good speaker is installed.

      Click here

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  26. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the T26 and U36 rear No. 2 speaker assembly connectors.

    3. Disconnect the T25 and U35 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
      T20-15 (RR+) - T26-3 (+TW) Always Below 1 Ω
      T20-30 (RR-) - T26-1 (-TW) Always Below 1 Ω
      T20-14 (RL+) - U36-3 (+TW) Always Below 1 Ω
      T20-29 (RL-) - U36-1 (-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
      T25-1 - T26-4 (+) Always Below 1 Ω
      T25-2 - T26-2 (-) Always Below 1 Ω
      U35-1 - U36-4 (+) Always Below 1 Ω
      U35-2 - U36-2 (-) 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
      T20-15 (RR+) - Body ground Always 10 kΩ or higher
      T20-30 (RR-) - Body ground Always 10 kΩ or higher
      T20-14 (RL+) - Body ground Always 10 kΩ or higher
      T20-29 (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
      T26-4 (+) - Body ground Always 10 kΩ or higher
      T26-2 (-) - Body ground Always 10 kΩ or higher
      U36-4 (+) - Body ground Always 10 kΩ or higher
      U36-2 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  27. Click here

    INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. B00650YC01
      *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
      Result
      Proceed to
      OK
      NG

  28. Click here

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

      Click here

    2. B0065HMC21
      *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
      3 (+TW) - 1 (-TW) Always 10 kΩ or higher
      3 (+TW) - 4 (+) Always Below 1 Ω
      1 (-TW) - 2 (-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

  29. Click here

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a new or known good speaker is installed.

      Click here

      OK
      Malfunction disappears.
      Tip:

      • 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.

      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  30. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the T23 and U34 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
      T20-11 (SR+) - T23-2 Always Below 1 Ω
      T20-26 (SR-) - T23-1 Always Below 1 Ω
      T20-10 (SL+) - U34-2 Always Below 1 Ω
      T20-25 (SL-) - U34-1 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
      T20-11 (SR+) - Body ground Always 10 kΩ or higher
      T20-26 (SR-) - Body ground Always 10 kΩ or higher
      T20-10 (SL+) - Body ground Always 10 kΩ or higher
      T20-25 (SL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  31. Click here

    INSPECT REAR HEADER SPEAKER ASSEMBLY


    1. Remove the rear header speaker assembly.

      Click here

    2. B00684JC01
      *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 6.5 to 9.7 Ω
      Result
      Proceed to
      OK
      NG

  32. Click here

    REPLACE REAR HEADER SPEAKER ASSEMBLY


    1. Check that the malfunction disappears when a new or known good speaker is installed.

      Click here

      OK
      Malfunction disappears.
      Tip:

      • Connect all the connectors to the rear header speaker assemblies that were disconnected.

      • When there is a possibility that either the right or left rear header 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.

      Result
      Proceed to
      OK
      NG

    • OK

      END

    • NG

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  33. Click here

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


    1. Disconnect the T20 stereo component amplifier assembly connector.

    2. Disconnect the T24 rear No. 3 speaker assembly connector.

    3. Measure the resistance between the rear 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
      T20-6 (WF1+) - T24-1 Always Below 1 Ω
      T20-21 (WF1-) - T24-2 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
      T20-6 (WF1+) - Body ground Always 10 kΩ or higher
      T20-21 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  34. Click here

    INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly.

      Click here

    2. B00650YC01
      *a

      Component without harness connected

      (Rear 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 4.8 to 6.8 Ω
      Result
      Proceed to
      OK
      NG

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

    • NG

      REPLACE REAR NO. 3 SPEAKER ASSEMBLYClick here