AUDIO AND VISUAL SYSTEM(for 8 Inch Display) 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

Figure 1. for 9 Speakers

A01RFD7E05

Figure 2. for 9 Speakers

A01RBAZE04

Figure 3. for 12 Speakers

B005P0LE11

Figure 4. for 12 Speakers

A01RA40E04

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 9 Speakers A
      for 12 Speakers B

    B

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK SPEAKER (OPERATION CHECK)


    1. B005NLU

      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. 3 speaker assembly A
      Front No. 2 speaker assembly B
      Front No. 1 speaker assembly C
      Rear speaker assembly or rear No. 2 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. 2 SPEAKER ASSEMBLY) Click here

    C

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

    D

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

    A

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the K2 front No. 3 speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-7 (CTR+) - K2-2 Always Below 1 Ω
      J66-22 (CTR-) - K2-1 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or the front No. 3 speaker assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-7 (CTR+) or K2-2 - Body ground Always 10 kΩ or higher
      J66-22 (CTR-) or K2-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. 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

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the K6 and K8 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-13 (FR+) - K6-4 Always Below 1 Ω
      J66-28 (FR-) - K6-2 Always Below 1 Ω
      J66-12 (FL+) - K8-4 Always Below 1 Ω
      J66-27 (FL-) - K8-2 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-13 (FR+) or K6-4 - Body ground Always 10 kΩ or higher
      J66-28 (FR-) or K6-2 - Body ground Always 10 kΩ or higher
      J66-12 (FL+) or K8-4 - Body ground Always 10 kΩ or higher
      J66-27 (FL-) or K8-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. 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

    3. 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 TABLE Click here

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the M3 and N3 front No. 1 speaker assembly connectors.

    3. Measure the resistance between the stereo component amplifier assembly and each of the front No. 1 speaker assemblies to check for an open in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-5 (WFR+) - M3-1 Always Below 1 Ω
      J66-20 (WFR-) - M3-2 Always Below 1 Ω
      J66-4 (WFL+) - N3-1 Always Below 1 Ω
      J66-19 (WFL-) - N3-2 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or each of the front No. 1 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-5 (WFR+) or M3-1 - Body ground Always 10 kΩ or higher
      J66-20 (WFR-) or M3-2 - Body ground Always 10 kΩ or higher
      J66-4 (WFL+) or N3-1 - Body ground Always 10 kΩ or higher
      J66-19 (WFL-) or N3-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. 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

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the O5 and P5 rear No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-15 (RR+) - O5-4 (+TW) Always Below 1 Ω
      J66-30 (RR-) - O5-2 (-TW) Always Below 1 Ω
      J66-14 (RL+) - P5-4 (+TW) Always Below 1 Ω
      J66-29 (RL-) - P5-2 (-TW) Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or 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
      J66-15 (RR+) or O5-4 (+TW) - Body ground Always 10 kΩ or higher
      J66-30 (RR-) or O5-2 (-TW) - Body ground Always 10 kΩ or higher
      J66-14 (RL+) or P5-4 (+TW) - Body ground Always 10 kΩ or higher
      J66-29 (RL-) or P5-2 (-TW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the O2 and P2 rear speaker assembly connectors.

    2. Disconnect the O5 and P5 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      O2-1 - O5-3 (+) Always Below 1 Ω
      O2-2 - O5-1 (-) Always Below 1 Ω
      P2-1 - P5-3 (+) Always Below 1 Ω
      P2-2 - P5-1 (-) Always Below 1 Ω

    4. Measure the resistance between each of the rear speaker assemblies or 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
      O2-1 or O5-3 (+) - Body ground Always 10 kΩ or higher
      O2-2 or O5-1 (-) - Body ground Always 10 kΩ or higher
      P2-1 or P5-3 (+) - Body ground Always 10 kΩ or higher
      P2-2 or P5-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  12. 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

    3. 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 TABLE Click here

  13. CHECK SPEAKER (OPERATION CHECK)


    1. B005NLU

      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. 3 speaker assembly A
      Front No. 2 speaker assembly B
      Front No. 1 speaker assembly C
      Rear speaker assembly or rear No. 2 speaker assembly D
      Rear No. 3 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. 2 SPEAKER ASSEMBLY) Click here

    C

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

    A

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the K2 front No. 3 speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-7 (CTR+) - K2-2 Always Below 1 Ω
      J66-22 (CTR-) - K2-1 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or the front No. 3 speaker assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-7 (CTR+) or K2-2 - Body ground Always 10 kΩ or higher
      J66-22 (CTR-) or K2-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. 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

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the K5 and K7 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-13 (FR+) - K5-2 Always Below 1 Ω
      J66-28 (FR-) - K5-1 Always Below 1 Ω
      J66-12 (FL+) - K7-2 Always Below 1 Ω
      J66-27 (FL-) - K7-1 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or each of the front No. 2 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-13 (FR+) or K5-2 - Body ground Always 10 kΩ or higher
      J66-28 (FR-) or K5-1 - Body ground Always 10 kΩ or higher
      J66-12 (FL+) or K7-2 - Body ground Always 10 kΩ or higher
      J66-27 (FL-) or K7-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. 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

    3. 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 TABLE Click here

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the M3 and N3 front No. 1 speaker assembly connectors.

    3. Measure the resistance between the stereo component amplifier assembly and each of the front No. 1 speaker assemblies to check for an open in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-5 (WFR+) - M3-1 Always Below 1 Ω
      J66-20 (WFR-) - M3-2 Always Below 1 Ω
      J66-4 (WFL+) - N3-1 Always Below 1 Ω
      J66-19 (WFL-) - N3-2 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or each of the front No. 1 speaker assemblies and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-5 (WFR+) or M3-1 - Body ground Always 10 kΩ or higher
      J66-20 (WFR-) or M3-2 - Body ground Always 10 kΩ or higher
      J66-4 (WFL+) or N3-1 - Body ground Always 10 kΩ or higher
      J66-19 (WFL-) or N3-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. 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

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the O5 and P5 rear No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-15 (RR+) - O5-4 (+TW) Always Below 1 Ω
      J66-30 (RR-) - O5-2 (-TW) Always Below 1 Ω
      J66-14 (RL+) - P5-4 (+TW) Always Below 1 Ω
      J66-29 (RL-) - P5-2 (-TW) Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or 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
      J66-15 (RR+) or O5-4 (+TW) - Body ground Always 10 kΩ or higher
      J66-30 (RR-) or O5-2 (-TW) - Body ground Always 10 kΩ or higher
      J66-14 (RL+) or P5-4 (+TW) - Body ground Always 10 kΩ or higher
      J66-29 (RL-) or P5-2 (-TW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the O2 and P2 rear speaker assembly connectors.

    2. Disconnect the O5 and P5 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      O2-1 - O5-3 (+) Always Below 1 Ω
      O2-2 - O5-1 (-) Always Below 1 Ω
      P2-1 - P5-3 (+) Always Below 1 Ω
      P2-2 - P5-1 (-) Always Below 1 Ω

    4. Measure the resistance between each of the rear speaker assemblies or 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
      O2-1 or O5-3 (+) - Body ground Always 10 kΩ or higher
      O2-2 or O5-1 (-) - Body ground Always 10 kΩ or higher
      P2-1 or P5-3 (+) - Body ground Always 10 kΩ or higher
      P2-2 or P5-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  22. 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

    NG

    REPLACE REAR SPEAKER ASSEMBLY Click here

    OK

  23. 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

    3. 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 TABLE Click here

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


    1. Disconnect the J66 stereo component amplifier assembly connector.

    2. Disconnect the S53 rear No. 3 speaker assembly connector.

    3. Measure the resistance between the stereo component amplifier assembly and the rear No. 3 speaker assembly to check for an open in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-6 (WF1+) - S53-1 Always Below 1 Ω
      J66-21 (WF1-) - S53-2 Always Below 1 Ω

    4. Measure the resistance between the stereo component amplifier assembly or the rear No. 3 speaker assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      J66-6 (WF1+) or S53-1 - Body ground Always 10 kΩ or higher
      J66-21 (WF1-) or S53-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  25. 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