AUDIO AND VISUAL SYSTEM Speaker Circuit

DESCRIPTION



WIRING DIAGRAM

Figure 1. for 6 Speakers

B004PQ7E81

Figure 2. for 10 Speakers

B004PSGE01

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 10 Speakers B

    B

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK SPEAKER (OPERATION CHECK)


    1. B004OVR

      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. 1 speaker assembly or front No. 2 speaker assembly A
      Rear speaker assembly B

      Tech Tips

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


    B

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY)


    1. Disconnect the F32 radio and display receiver assembly connector.

    2. Disconnect the I1 and J1 front No. 1 speaker assembly connectors.

    3. Disconnect the G3 and G6 front No. 2 speaker assembly connectors.

    4. Measure the resistance between each of the front No. 2 speaker assemblies and the radio and display receiver assembly to check for an open in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F32-1 (FR+) - G3-4 (TWR+) Always Below 1 Ω
      F32-5 (FR-) - G3-2 (TWR-) Always Below 1 Ω
      F32-2 (FL+) - G6-4 (TWL+) Always Below 1 Ω
      F32-6 (FL-) - G6-2 (TWL-) Always Below 1 Ω

    5. Measure the resistance between each of the front No. 1 speaker assemblies and the front No. 2 speaker assemblies to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I1-1 - G3-3 (+) Always Below 1 Ω
      I1-2 - G3-1 (-) Always Below 1 Ω
      J1-1 - G6-3 (+) Always Below 1 Ω
      J1-2 - G6-1 (-) Always Below 1 Ω

    6. Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F32-1 (FR+) or G3-4 (TWR+) - Body ground Always 10 kΩ or higher
      F32-5 (FR-) or G3-2 (TWR-) - Body ground Always 10 kΩ or higher
      F32-2 (FL+) or G6-4 (TWL+) - Body ground Always 10 kΩ or higher
      F32-6 (FL-) or G6-2 (TWL-) - Body ground Always 10 kΩ or higher

    7. Measure the resistance between 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
      I1-1 or G3-3 (+) - Body ground Always 10 kΩ or higher
      I1-2 or G3-1 (-) - Body ground Always 10 kΩ or higher
      J1-1 or G6-3 (+) - Body ground Always 10 kΩ or higher
      J1-2 or G6-1 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT FRONT NO. 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 front No. 2 speaker assembly is installed.

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  5. 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

  6. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY)


    1. Disconnect the F33 radio and display receiver assembly connector.

    2. Disconnect the L5 and K4 rear speaker assembly connectors.

    3. Measure the resistance between each of the rear speaker assemblies and the radio and display receiver assembly to check for an open in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F33-1 (RR+) - K4-1 Always Below 1 Ω
      F33-3 (RR-) - K4-2 Always Below 1 Ω
      F33-2 (RL+) - L5-1 Always Below 1 Ω
      F33-6 (RL-) - L5-2 Always Below 1 Ω

    4. Measure the resistance between the radio and display receiver assembly and body ground to check for a short circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F33-1 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F33-3 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F33-2 (RL+) or L5-1 - Body ground Always 10 kΩ or higher
      F33-6 (RL-) or L5-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. 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

  8. CHECK SPEAKER (OPERATION CHECK)


    1. B004OVR

      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. 1 speaker assembly A
      Front No. 2 speaker assembly B
      Rear 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 - FRONT NO. 2 SPEAKER ASSEMBLY) Click here

    C

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

    A

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


    1. Disconnect the F60 stereo component amplifier assembly connector.

    2. Disconnect the I1 and J1 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F60-15 (FR+) - I1-1 Always Below 1 Ω
      F60-30 (FR-) - I1-2 Always Below 1 Ω
      F60-8 (FL+) - J1-1 Always Below 1 Ω
      F60-23 (FL-) - J1-2 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
      F60-15 (FR+) or I1-1 - Body ground Always 10 kΩ or higher
      F60-30 (FR-) or I1-2 - Body ground Always 10 kΩ or higher
      F60-8 (FL+) or J1-1 - Body ground Always 10 kΩ or higher
      F60-23 (FL-) or J1-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. 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

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


    1. Disconnect the F60 stereo component amplifier assembly connector.

    2. Disconnect the G4 and G5 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F60-13 (TWR+) - G4-4 Always Below 1 Ω
      F60-28 (TWR-) - G4-3 Always Below 1 Ω
      F60-10 (TWL+) - G5-4 Always Below 1 Ω
      F60-25 (TWL-) - G5-3 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
      F60-13 (TWR+) or G4-4 - Body ground Always 10 kΩ or higher
      F60-28 (TWR-) or G4-3 - Body ground Always 10 kΩ or higher
      F60-10 (TWL+) or G5-4 - Body ground Always 10 kΩ or higher
      F60-25 (TWL-) or G5-3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. 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 front No. 2 speaker assembly is installed.

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


    1. Disconnect the F60 stereo component amplifier assembly connector.

    2. Disconnect the K4 and L5 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 in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      F60-11 (RR+) - K4-1 Always Below 1 Ω
      F60-26 (RR-) - K4-2 Always Below 1 Ω
      F60-12 (RL+) - L5-1 Always Below 1 Ω
      F60-27 (RL-) - L5-2 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
      F60-11 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F60-26 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F60-12 (RL+) or L5-1 - Body ground Always 10 kΩ or higher
      F60-27 (RL-) or L5-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. INSPECT REAR SPEAKER ASSEMBLY


    1. Remove the rear speaker assembly.

      Click here

    2. Inspect the rear speaker assembly.

      Click here

    3. Check that the malfunction disappears when a new or known good rear speaker assembly is installed.

      OK
      Malfunction disappears.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

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