NAVIGATION SYSTEM(for Radio and Display Type) Speaker Circuit

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 or speakers.

WIRING DIAGRAM


  1. B006L2ZE02
    B006L4DE01

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.

Click here

PROCEDURE


  1. CHECK SPEAKER (OPERATION CHECK)


    1. B006QOA

      Enter the "System Check Mode" screen. Refer to Check SP Check On 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. 1 speaker assembly A
      Front No. 2 speaker assembly B
      Front No. 3 speaker assembly C
      Rear speaker assembly or rear No. 2 speaker assembly D
      Rear No. 3 speaker assembly E
      Front roof speaker assembly F
      Rear roof speaker assembly G

      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. 2 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 NO. 2 SPEAKER ASSEMBLY) Click here

    E

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

    F

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

    G

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

    A

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the I1 and I17 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
      F6-15 (FR+) - I1-1 Always Below 1 Ω
      F6-30 (FR-) - I1-2 Always Below 1 Ω
      F6-11 (FL+) - I17-1 Always Below 1 Ω
      F6-26 (FL-) - I17-2 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
      F6-15 (FR+) - Body ground Always 10 kΩ or higher
      F6-30 (FR-) - Body ground Always 10 kΩ or higher
      F6-11 (FL+) - Body ground Always 10 kΩ or higher
      F6-26 (FL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Remove the front No. 1 speaker assembly.

      Click here

    2. Inspect the front No. 1 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the H3 and H5 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
      F6-14 (TWR+) - H3-4 (TWR+) Always Below 1 Ω
      F6-29 (TWR-) - H3-3 (TWR-) Always Below 1 Ω
      F6-13 (TWL+) - H5-4 (TWL+) Always Below 1 Ω
      F6-28 (TWL-) - H5-3 (TWL-) 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
      F6-14 (TWR+) - Body ground Always 10 kΩ or higher
      F6-29 (TWR-) - Body ground Always 10 kΩ or higher
      F6-13 (TWL+) - Body ground Always 10 kΩ or higher
      F6-28 (TWL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Remove the front No. 2 speaker assembly.

      Click here

    2. Inspect the front No. 2 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the H8 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
      F6-10 (CTR+) - H8-4 (+) Always Below 1 Ω
      F6-25 (CTR-) - H8-3 (-) 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
      F6-10 (CTR+) - Body ground Always 10 kΩ or higher
      F6-25 (CTR-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. Remove the front No. 3 speaker assembly.

      Click here

    2. Inspect the front No. 3 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the d1 and d2 rear No. 2 speaker assembly connectors.

    3. 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
      F6-12 (RR+) - d1-4 (+TW) Always Below 1 Ω
      F6-27 (RR-) - d1-2 (-TW) Always Below 1 Ω
      F6-4 (RL+) - d2-4 (+TW) Always Below 1 Ω
      F6-19 (RL-) - d2-2 (-TW) 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
      F6-12 (RR+) - Body ground Always 10 kΩ or higher
      F6-27 (RR-) - Body ground Always 10 kΩ or higher
      F6-4 (RL+) - Body ground Always 10 kΩ or higher
      F6-19 (RL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (REAR SPEAKER ASSEMBLY - REAR NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the J10 and J23 rear speaker assembly connectors.

    2. Disconnect the d1 and d2 rear No. 2 speaker assembly connectors.

    3. 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
      J10-1 - d1-3 (+) Always Below 1 Ω
      J10-2 - d1-1 (-) Always Below 1 Ω
      J23-1 - d2-3 (+) Always Below 1 Ω
      J23-2 - d2-1 (-) Always Below 1 Ω

    4. Measure the resistance between each of the rear speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J10-1 - Body ground Always 10 kΩ or higher
      J10-2 - Body ground Always 10 kΩ or higher
      J23-1 - Body ground Always 10 kΩ or higher
      J23-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Remove the rear No. 2 speaker assembly.

      Click here

    2. Inspect the rear No. 2 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    OK

  11. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the U18 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
      F6-7 (WF2+) - U18-2 (WF2+) Always Below 1 Ω
      F6-22 (WF2-) - U18-1 (WF2-) Always Below 1 Ω
      F6-8 (WF1+) - U18-4 (WF1+) Always Below 1 Ω
      F6-23 (WF1-) - U18-3 (WF1-) 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
      F6-7 (WF2+) - Body ground Always 10 kΩ or higher
      F6-22 (WF2-) - Body ground Always 10 kΩ or higher
      F6-8 (WF1+) - Body ground Always 10 kΩ or higher
      F6-23 (WF1-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. INSPECT REAR NO. 3 SPEAKER ASSEMBLY


    1. Remove the rear No. 3 speaker assembly.

      Click here

    2. Inspect the rear No. 3 speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR NO. 3 SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the S11 and S10 front roof speaker assembly connectors.

    3. Measure the resistance between each of the front roof 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
      F6-6 (ROR+) - S11-2 Always Below 1 Ω
      F6-21 (ROR-) - S11-1 Always Below 1 Ω
      F6-6 (ROR+) - S10-2 Always Below 1 Ω
      F6-21 (ROR-) - S10-1 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
      F6-6 (ROR+) - Body ground Always 10 kΩ or higher
      F6-21 (ROR-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. INSPECT FRONT ROOF SPEAKER ASSEMBLY


    1. Remove the front roof speaker assembly.

      Click here

    2. Inspect the front roof speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE FRONT ROOF SPEAKER ASSEMBLY Click here

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


    1. Disconnect the F6 stereo component amplifier assembly connector.

    2. Disconnect the S4 and S3 rear roof speaker assembly connectors.

    3. Measure the resistance between each of the rear roof 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
      F6-9 (SR+) - S4-2 Always Below 1 Ω
      F6-24 (SR-) - S4-1 Always Below 1 Ω
      F6-5 (SL+) - S3-2 Always Below 1 Ω
      F6-20 (SL-) - S3-1 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
      F6-9 (SR+) - Body ground Always 10 kΩ or higher
      F6-24 (SR-) - Body ground Always 10 kΩ or higher
      F6-5 (SL+) - Body ground Always 10 kΩ or higher
      F6-20 (SL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. INSPECT REAR ROOF SPEAKER ASSEMBLY


    1. Remove the rear roof speaker assembly.

      Click here

    2. Inspect the rear roof speaker assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE REAR ROOF SPEAKER ASSEMBLY Click here