NAVIGATION SYSTEM Speaker Circuit

DESCRIPTION



WIRING DIAGRAM


  1. A001RY8E01
    A001P4LE01
    A001PSJE03
    for 9 Speakers
    *a Rear Speaker Assembly RH
    *b Rear Speaker Assembly LH
    *c No. 1 Speaker with Box Assembly
    *d Stereo Component Amplifier Assembly

PROCEDURE


  1. CONFIRM MODEL


    1. Choose the model to be inspected.

      Result
      Result Proceed to
      for 6 Speakers A
      for 9 Speakers B

    B

    CHECK SPEAKER (OPERATION CHECK) Click here

    A

  2. CHECK SPEAKER (OPERATION CHECK)


    1. A001RCD

      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 F126 radio and display receiver assembly connector.

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

    3. Disconnect the F85 and F86 front No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F126-1 (FR+) - F85-4 (TWR+) Always Below 1 Ω
      F126-5 (FR-) - F85-2 (TWR-) Always Below 1 Ω
      F126-2 (FL+) - F86-4 (TWL+) Always Below 1 Ω
      F126-6 (FL-) - F86-2 (TWL-) Always Below 1 Ω
      I1-1 - F85-3 (+) Always Below 1 Ω
      I1-2 - F85-1 (-) Always Below 1 Ω
      J1-1 - F86-3 (+) Always Below 1 Ω
      J1-2 - F86-1 (-) Always Below 1 Ω
      F126-1 (FR+) or F85-4 (TWR+) - Body ground Always 10 kΩ or higher
      F126-5 (FR-) or F85-2 (TWR-) - Body ground Always 10 kΩ or higher
      F126-2 (FL+) or F86-4 (TWL+) - Body ground Always 10 kΩ or higher
      F126-6 (FL-) or F86-2 (TWL-) - Body ground Always 10 kΩ or higher
      I1-1 or F85-3 (+) - Body ground Always 10 kΩ or higher
      I1-2 or F85-1 (-) - Body ground Always 10 kΩ or higher
      J1-1 or F86-3 (+) - Body ground Always 10 kΩ or higher
      J1-2 or F86-1 (-) - 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 F127 radio and display receiver assembly connector.

    2. Disconnect the L4 and K4 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F127-1 (RR+) - K4-1 Always Below 1 Ω
      F127-3 (RR-) - K4-2 Always Below 1 Ω
      F127-2 (RL+) - L4-1 Always Below 1 Ω
      F127-6 (RL-) - L4-2 Always Below 1 Ω
      F127-1 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F127-3 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F127-2 (RL+) or L4-1 - Body ground Always 10 kΩ or higher
      F127-6 (RL-) or L4-2 - 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. A001RCD

      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. 3 speaker assembly A
      Front No. 2 speaker assembly B
      Rear speaker assembly C
      No. 1 speaker with box 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 - REAR SPEAKER ASSEMBLY) Click here

    D

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

    A

  9. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - FRONT NO. 1 SPEAKER ASSEMBLY - FRONT NO. 3 SPEAKER ASSEMBLY)


    1. Disconnect the F75 stereo component amplifier assembly connector.

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

    3. Disconnect the F89 and F90 front No. 3 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F75-12 (FR+) - F89-2 (TWR+) Always Below 1 Ω
      F75-27 (FR-) - F89-4 (TWR-) Always Below 1 Ω
      F75-11 (FL+) - F90-2 (TWL+) Always Below 1 Ω
      F75-26 (FL-) - F90-4 (TWL-) Always Below 1 Ω
      I1-1 - F89-1 (+) Always Below 1 Ω
      I1-2 - F89-3 (-) Always Below 1 Ω
      J1-1 - F90-1 (+) Always Below 1 Ω
      J1-2 - F90-3 (-) Always Below 1 Ω
      F75-12 (FR+) or F89-2 (TWR+) - Body ground Always 10 kΩ or higher
      F75-27 (FR-) or F89-4 (TWR-) - Body ground Always 10 kΩ or higher
      F75-11 (FL+) or F90-2 (TWL+) - Body ground Always 10 kΩ or higher
      F75-26 (FL-) or F90-4 (TWL-) - Body ground Always 10 kΩ or higher
      I1-1 or F89-1 (+) - Body ground Always 10 kΩ or higher
      I1-2 or F89-3 (-) - Body ground Always 10 kΩ or higher
      J1-1 or F90-1 (+) - Body ground Always 10 kΩ or higher
      J1-2 or F90-3 (-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. 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

    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

  11. 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

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


    1. Disconnect the F75 stereo component amplifier assembly connector.

    2. Disconnect the F52 and F53 front No. 2 speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F75-14 (TWR+) - F52-2 Always Below 1 Ω
      F75-29 (TWR-) - F52-1 Always Below 1 Ω
      F75-9 (TWL+) - F53-2 Always Below 1 Ω
      F75-24 (TWL-) - F53-1 Always Below 1 Ω
      F75-14 (TWR+) or F52-2 - Body ground Always 10 kΩ or higher
      F75-29 (TWR-) or F52-1 - Body ground Always 10 kΩ or higher
      F75-9 (TWL+) or F53-2 - Body ground Always 10 kΩ or higher
      F75-24 (TWL-) or F53-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  13. 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

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


    1. Disconnect the F75 stereo component amplifier assembly connector.

    2. Disconnect the L4 and K4 rear speaker assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F75-13 (RR+) - K4-1 Always Below 1 Ω
      F75-28 (RR-) - K4-2 Always Below 1 Ω
      F75-10 (RL+) - L4-1 Always Below 1 Ω
      F75-25 (RL-) - L4-2 Always Below 1 Ω
      F75-13 (RR+) or K4-1 - Body ground Always 10 kΩ or higher
      F75-28 (RR-) or K4-2 - Body ground Always 10 kΩ or higher
      F75-10 (RL+) or L4-1 - Body ground Always 10 kΩ or higher
      F75-25 (RL-) or L4-2 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. 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

  16. CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY - NO. 1 SPEAKER WITH BOX ASSEMBLY)


    1. Disconnect the F75 stereo component amplifier assembly connector.

    2. Disconnect the M74 No. 1 speaker with box assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F75-15 (WFR+) - M74-3 (WF+) Always Below 1 Ω
      F75-30 (WFR-) - M74-2 (WF-) Always Below 1 Ω
      F75-8 (WFL+) - M74-4 (WF+) Always Below 1 Ω
      F75-23 (WFL-) - M74-1 (WF-) Always Below 1 Ω
      F75-15 (WFR+) or M74-3 (WF+) - Body ground Always 10 kΩ or higher
      F75-30 (WFR-) or M74-2 (WF-) - Body ground Always 10 kΩ or higher
      F75-8 (WFL+) or M74-4 (WF+) - Body ground Always 10 kΩ or higher
      F75-23 (WFL-) or M74-1 (WF-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  17. INSPECT NO. 1 SPEAKER WITH BOX ASSEMBLY


    1. Remove the No. 1 speaker with box assembly.

      Click here

    2. Inspect the No. 1 speaker with box assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE NO. 1 SPEAKER WITH BOX ASSEMBLY Click here