NAVIGATION SYSTEM Speaker Circuit

DESCRIPTION

The radio and display receiver assembly sends sound signals to the speakers.

WIRING DIAGRAM

A0057SJE23
A00531DE03

CAUTION / NOTICE / HINT

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections Click here.

PROCEDURE


  1. CONFIRM MODEL

    Result
    Result Proceed to
    for 6 Speakers A
    for 11 Speakers B

    B

    CHECK HARNESS AND CONNECTOR Click here

    A

  2. CHECK HARNESS AND CONNECTOR


    • *1: for RH Side

    • *2: for LH Side


    1. Disconnect the D125 and D126 radio and display receiver assembly connectors.

    2. Disconnect the E1*1 and E11*2 front No. 1 speaker assembly connectors.

    3. Disconnect the D39*1 and D40*2 front No. 2 speaker assembly connectors.

    4. Disconnect the F2*1 and F7*2 rear No. 1 speaker assembly connectors.

    5. Measure the resistance between each of the radio and display 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
      D125-1 (FR+) - D39-4 (+) Always Below 1 Ω
      D125-5 (FR-) - D39-2 (-) Always Below 1 Ω
      D125-2 (FL+) - D40-4 (+) Always Below 1 Ω
      D125-6 (FL-) - D40-2 (-) 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
      D39-3 (TWR+) - E1-1 Always Below 1 Ω
      D39-1 (TWR-) - E1-2 Always Below 1 Ω
      D40-3 (TWL+) - E11-1 Always Below 1 Ω
      D40-1 (TWL-) - E11-2 Always Below 1 Ω

    7. Measure the resistance between each of the radio and display receiver assembly and the rear No. 1 speaker assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D126-1 (RR+) - F2-1 Always Below 1 Ω
      D126-3 (RR-) - F2-2 Always Below 1 Ω
      D126-2 (RL+) - F7-1 Always Below 1 Ω
      D126-6 (RL-) - F7-2 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
      E1-1 - Body ground Always 10 kΩ or higher
      E1-2 - Body ground Always 10 kΩ or higher
      E11-1 - Body ground Always 10 kΩ or higher
      E11-2 - Body ground Always 10 kΩ or higher
      D39-4 (+) - Body ground Always 10 kΩ or higher
      D39-2 (-) - Body ground Always 10 kΩ or higher
      D40-4 (+) - Body ground Always 10 kΩ or higher
      D40-2 (-) - Body ground Always 10 kΩ or higher
      F2-1 - Body ground Always 10 kΩ or higher
      F2-2 - Body ground Always 10 kΩ or higher
      F7-1 - Body ground Always 10 kΩ or higher
      F7-2 - Body ground Always 10 kΩ or higher

    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.


    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  4. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. Remove the rear No. 1 speaker assembly Click here.

    2. Inspect the rear No. 1 speaker assembly Click here.


    NG

    REPLACE REAR NO. 1 SPEAKER ASSEMBLY Click here

    OK

  5. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the front No. 2 speaker assembly with a new or normally functioning one Click here.

    2. Check that the speaker sounds normally.

      Note


      • Connect all the connectors that were disconnected to the front No. 2 speaker assemblies.

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

      OK
      Malfunction disappears.

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  6. CHECK HARNESS AND CONNECTOR

    *1: for RH Side

    *2: for LH Side


    1. Disconnect the D125 and D126 radio and display receiver assembly connectors.

    2. Disconnect the H20 stereo component amplifier assembly connector.

    3. Disconnect the E1*1 and E11*2 front No. 1 speaker assembly connectors.

    4. Disconnect the D52*1 and D53*2 front No. 2 speaker assembly connectors.

    5. Disconnect the F11*1 and F12*2 rear No. 1 speaker assembly connectors.

    6. Disconnect the F3*1 and F8*2 rear No. 2 speaker assembly connectors.

    7. Disconnect the D51 front No. 3 speaker assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H20-3 (WFR+) - E1-1 Always Below 1 Ω
      H20-8 (WFR-) - E1-2 Always Below 1 Ω
      H20-4 (WFL+) - E11-1 Always Below 1 Ω
      H20-11 (WFL-) - E11-2 Always Below 1 Ω

    9. Measure the resistance between each of the radio and display 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
      D125-1 (FR+) - D52-1 (+) Always Below 1 Ω
      D125-5 (FR-) - D52-3 (-) Always Below 1 Ω
      D125-2 (FL+) - D53-1 (+) Always Below 1 Ω
      D125-6 (FL-) - D53-3 (-) Always Below 1 Ω

    10. Measure the resistance between each of the radio and display receiver assembly and the front No. 3 speaker assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D125-1 (FR+) - D51-4 (+) Always Below 1 Ω
      D125-5 (FR-) - D51-3 (-) Always Below 1 Ω
      D125-2 (FL+) - D51-2 (CTR+) Always Below 1 Ω
      D125-6 (FL-) - D51-1 (CTR-) Always Below 1 Ω

    11. Measure the resistance between each of the stereo component amplifier assembly and front No. 2 speaker assembly to check for an open circuit in the wire harness.

      Standard Resistance
      Tester Connection Condition Specified Condition
      H20-2 (RR+) - D52-2 (TWR+) Always Below 1 Ω
      H20-7 (RR-) - D52-4 (TWR-) Always Below 1 Ω
      H20-1 (RL+) - D53-2 (TWL+) Always Below 1 Ω
      H20-6 (RL-) - D53-4 (TWL-) Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D126-1 (RR+) - F3-4 (+) Always Below 1 Ω
      D126-3 (RR-) - F3-2 (-) Always Below 1 Ω
      D126-2 (RL+) - F8-4 (+) Always Below 1 Ω
      D126-6 (RL-) - F8-2 (-) Always Below 1 Ω

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F11-1 - F3-3 (+TW) Always Below 1 Ω
      F11-2 - F3-1 (-TW) Always Below 1 Ω
      F12-1 - F8-3 (+TW) Always Below 1 Ω
      F12-2 - F8-1 (-TW) Always Below 1 Ω

    14. 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
      E1-1 - Body ground Always 10 kΩ or higher
      E1-2 - Body ground Always 10 kΩ or higher
      E11-1 - Body ground Always 10 kΩ or higher
      E11-2 - Body ground Always 10 kΩ or higher
      D52-2 (TWR+) - Body ground Always 10 kΩ or higher
      D52-4 (TWR-) - Body ground Always 10 kΩ or higher
      D52-1 (+) - Body ground Always 10 kΩ or higher
      D52-3 (-) - Body ground Always 10 kΩ or higher
      D53-2 (TWL+) - Body ground Always 10 kΩ or higher
      D53-4 (TWL-) - Body ground Always 10 kΩ or higher
      D53-1 (+) - Body ground Always 10 kΩ or higher
      D53-3 (-) - Body ground Always 10 kΩ or higher
      D51-1 (CTR-) - Body ground Always 10 kΩ or higher
      D51-2 (CTR+) - Body ground Always 10 kΩ or higher
      D51-3 (-) - Body ground Always 10 kΩ or higher
      D51-4 (+) - Body ground Always 10 kΩ or higher
      F3-4 (+) - Body ground Always 10 kΩ or higher
      F3-2 (-) - Body ground Always 10 kΩ or higher
      F8-4 (+) - Body ground Always 10 kΩ or higher
      F8-2 (-) - Body ground Always 10 kΩ or higher
      F11-1 - Body ground Always 10 kΩ or higher
      F11-2 - Body ground Always 10 kΩ or higher
      F12-1 - Body ground Always 10 kΩ or higher
      F12-2 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. 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.


    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  8. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. Remove the rear No. 1 speaker assembly Click here.

    2. Inspect the rear No. 1 speaker assembly Click here.


    NG

    REPLACE REAR NO. 1 SPEAKER ASSEMBLY Click here

    OK

  9. CHECK FRONT NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the front No. 2 speaker assembly with a new or normally functioning one Click here.

    2. Check that the speaker sounds normally.

      Note


      • Connect all the connectors that were disconnected to the front No. 2 speaker assemblies.

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

      OK
      Malfunction disappears.

    OK

    END (FRONT NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  10. CHECK FRONT NO. 3 SPEAKER ASSEMBLY


    1. Temporarily replace the front No. 3 speaker assembly with a new or normally functioning one Click here.

    2. Check that the speaker sounds normally.

      Note


      • Connect all the connectors that were disconnected to the front No. 3 speaker assemblies.

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

      OK
      Malfunction disappears.

    OK

    END (FRONT NO. 3 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  11. CHECK REAR NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the rear No. 2 speaker assembly with a new or normally functioning one Click here.

    2. Check that the speaker sounds normally.

      Note


      • Connect all the connectors that were disconnected to the rear No. 2 speaker assemblies.

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

      OK
      Malfunction disappears.

    OK

    END (REAR NO. 2 SPEAKER ASSEMBLY IS DEFECTIVE)

    NG

  12. CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY


    1. Temporarily replace the stereo component amplifier assembly with a new or normally functioning one Click here.

    2. Check that sound is emitted from the speaker normally.

      OK
      Malfunction disappears.

    OK

    END (STEREO COMPONENT AMPLIFIER ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here