AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Speaker Circuit

DESCRIPTION

If there is a short in a speaker circuit, the radio receiver 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 radio receiver assembly or speakers.

If a short is detected in a speaker circuit, no sound can be heard from the speakers.

WIRING DIAGRAM

A0048FXE02

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR


    1. for TMC Made


      1. Disconnect the F107 and F108 radio receiver assembly connectors.

      2. Disconnect the H8 and G8 front No. 1 speaker assembly connectors.

      3. Disconnect the F92 and F91 front No. 2 speaker assembly connectors (w/ Tweeter Speaker).

      4. Disconnect the J4 and I4 rear speaker assembly connectors.

      5. Measure the resistance between each of the radio receiver assembly and the front No. 1 speaker assembly to check for an open circuit in the wire harness (w/o Tweeter Speaker).

        Standard Resistance
        Tester Connection Condition Specified Condition
        F107-2 (FL+) - H8-1 Always Below 1 Ω
        F107-6 (FL-) - H8-2 Always Below 1 Ω
        F107-1 (FR+) - G8-1 Always Below 1 Ω
        F107-5 (FR-) - G8-2 Always Below 1 Ω

      6. Measure the resistance between each of the radio receiver assembly and the front No. 2 speaker assembly to check for an open circuit in the wire harness (w/ Tweeter Speaker).

        Standard Resistance
        Tester Connection Condition Specified Condition
        F107-2 (FL+) - F92-4 (+) Always Below 1 Ω
        F107-6 (FL-) - F92-2 (-) Always Below 1 Ω
        F107-1 (FR+) - F91-4 (+) Always Below 1 Ω
        F107-5 (FR-) - F91-2 (-) Always Below 1 Ω

      7. Measure the resistance between each of the front No. 2 speaker assembly and front No. 1 speaker assembly to check for an open circuit in the wire harness (w/ Tweeter Speaker).

        Standard Resistance
        Tester Connection Condition Specified Condition
        F92-3 (TWL+) - H8-1 Always Below 1 Ω
        F92-1 (TWL-) - H8-2 Always Below 1 Ω
        F91-3 (TWR+) - G8-1 Always Below 1 Ω
        F91-1 (TWR-) - G8-2 Always Below 1 Ω

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F108-2 (RL+) - J4-1 Always Below 1 Ω
        F108-6 (RL-) - J4-2 Always Below 1 Ω
        F108-1 (RR+) - I4-1 Always Below 1 Ω
        F108-3 (RR-) - I4-2 Always Below 1 Ω

      9. Measure the resistance between each speaker assembly and body ground to check for a short circuit in the wire harness.

        Standard Resistance
        Tester Connection Condition Specified Condition
        H8-1 - Body ground Always 10 kΩ or higher
        H8-2 - Body ground Always 10 kΩ or higher
        G8-1 - Body ground Always 10 kΩ or higher
        G8-2 - Body ground Always 10 kΩ or higher
        F92-4 (+) - Body ground*1 Always 10 kΩ or higher
        F92-2 (-) - Body ground*1 Always 10 kΩ or higher
        F91-4 (+) - Body ground*1 Always 10 kΩ or higher
        F91-2 (-) - Body ground*1 Always 10 kΩ or higher
        J4-1 - Body ground Always 10 kΩ or higher
        J4-2 - Body ground Always 10 kΩ or higher
        I4-1 - Body ground Always 10 kΩ or higher
        I4-2 - Body ground Always 10 kΩ or higher

        • *1: w/ Tweeter Speaker

    2. for TMMF Made


      1. Disconnect the F45 and F46 radio receiver assembly connectors.

      2. Disconnect the H8 and G8 front No. 1 speaker assembly connectors.

      3. Disconnect the F92 and F91 front No. 2 speaker assembly connectors.

      4. Disconnect the J4*1 and I4*1 or K43*2 and K44*2 rear speaker assembly connectors.


        • *1: for 5 Door

        • *2: for 3 Door

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F45-2 (FL+) - F92-4 (+) Always Below 1 Ω
        F45-6 (FL-) - F92-2 (-) Always Below 1 Ω
        F45-1 (FR+) - F91-4 (+) Always Below 1 Ω
        F45-5 (FR-) - F91-2 (-) Always Below 1 Ω

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        F92-3 (TWL+) - H8-1 Always Below 1 Ω
        F92-1 (TWL-) - H8-2 Always Below 1 Ω
        F91-3 (TWR+) - G8-1 Always Below 1 Ω
        F91-1 (TWR-) - G8-2 Always Below 1 Ω

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

        Standard Resistance
        for 5 Door
        Tester Connection Condition Specified Condition
        F46-2 (RL+) - J4-1 Always Below 1 Ω
        F46-6 (RL-) - J4-2 Always Below 1 Ω
        F46-1 (RR+) - I4-1 Always Below 1 Ω
        F46-3 (RR-) - I4-2 Always Below 1 Ω
        for 3 Door
        Tester Connection Condition Specified Condition
        F46-2 (RL+) - K43-1 Always Below 1 Ω
        F46-6 (RL-) - K43-2 Always Below 1 Ω
        F46-1 (RR+) - K44-1 Always Below 1 Ω
        F46-3 (RR-) - K44-2 Always Below 1 Ω

      8. Measure the resistance between each speaker assembly and body ground to check for a short circuit in the wire harness.

        Standard Resistance
        Tester Connection Condition Specified Condition
        H8-1 - Body ground Always 10 kΩ or higher
        H8-2 - Body ground Always 10 kΩ or higher
        G8-1 - Body ground Always 10 kΩ or higher
        G8-2 - Body ground Always 10 kΩ or higher
        F92-4 (+) - Body ground Always 10 kΩ or higher
        F92-2 (-) - Body ground Always 10 kΩ or higher
        F91-4 (+) - Body ground Always 10 kΩ or higher
        F91-2 (-) - Body ground Always 10 kΩ or higher
        J4-1 - Body ground*1 Always 10 kΩ or higher
        J4-2 - Body ground*1 Always 10 kΩ or higher
        I4-1 - Body ground*1 Always 10 kΩ or higher
        I4-2 - Body ground*1 Always 10 kΩ or higher
        K43-1 - Body ground*2 Always 10 kΩ or higher
        K43-2 - Body ground*2 Always 10 kΩ or higher
        K44-1 - Body ground*2 Always 10 kΩ or higher
        K44-2 - Body ground*2 Always 10 kΩ or higher

        • *1: for 5 Door

        • *2: for 3 Door


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. Inspect the front No. 1 speaker assembly Click here.

      Tech Tips

      The speaker should not be removed to check resistance.


    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  3. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

    Tech Tips

    For vehicle without front No. 2 speaker assembly, go to step 4.


    1. Check that the malfunction disappears when another speaker in good condition is installed.

      OK
      Malfunction disappears.

      Tech Tips


      • Connect all the connectors to the front No. 2 speakers.

      • If there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.

      • Perform the above inspection on both LH and RH sides.


    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT REAR SPEAKER ASSEMBLY


    1. Inspect the rear speaker assembly.


      Tech Tips

      The speaker should not be removed to check resistance.

      Result
      Result Proceed to
      OK A
      NG (for 5 Door) B
      NG (for 3 Door) C

    A

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

    B

    REPLACE REAR SPEAKER ASSEMBLY Click here

    C

    REPLACE REAR SPEAKER ASSEMBLY Click here