AUDIO AND VISUAL SYSTEM Speaker Circuit (Independent Amplifier)

DESCRIPTION

The radio receiver assembly and stereo component amplifier assembly send sound signals to the speakers.

WIRING DIAGRAM

A003EN2E01
A003DA8E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK SPEAKER


    1. Check the malfunctioning speakers.

      Result
      Result Proceed to
      Malfunction in front speaker area A
      Malfunction in rear speaker area B

    B

    CHECK SPEAKER Click here

    A

  2. CHECK SPEAKER


    1. Check the malfunctioning speakers.

      Result
      Result Proceed to
      Front No. 1 speaker assembly LH/RH A
      Front No. 2 speaker assembly LH/RH B
      Front No. 3 speaker assembly C

    B

    INSPECT FRONT NO. 2 SPEAKER ASSEMBLY Click here

    C

    INSPECT FRONT NO. 3 SPEAKER ASSEMBLY Click here

    A

  3. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A003D0HE01
      Text in Illustration
      *1

      Component without harness connected

      (Front No. 1 Speaker Assembly)

      Disconnect the E1*1 and/or E11*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 2 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

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


    1. A003EDQE01
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)
      *4

      Front view of wire harness connector

      (to Front No. 1 Speaker Assembly)

      Disconnect the H20 stereo component amplifier connector.

    2. Disconnect the E1*1 and/or E11*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      H20-4 (WFL+) - E11-1 Always Below 1 Ω
      H20-11 (WFL-) - E11-2
      H20-4 (WFL+) - Body ground Always 10 kΩ or higher
      H20-11 (WFL-) - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      H20-3 (WFR+) - E1-1 Always Below 1 Ω
      H20-8 (WFR-) - E1-2
      H20-3 (WFR+) - Body ground Always 10 kΩ or higher
      H20-8 (WFR-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. A003DPAE01
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Stereo Component Amplifier Assembly)
      *4

      Front view of wire harness connector

      (to Front No. 2 Speaker Assembly)

      Disconnect the H20 stereo component amplifier connector.

    2. Disconnect the D52*1 and/or D53*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      H20-1 (RL+) - D53-2 (TWL+) Always Below 1 Ω
      H20-6 (RL-) - D53-4 (TWL-)
      H20-1 (RL+) - Body ground Always 10 kΩ or higher
      H20-6 (RL-) - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      H20-2 (RR+) - D52-2 (TWR+) Always Below 1 Ω
      H20-7 (RR-) - D52-4 (TWR-)
      H20-2 (RR+) - Body ground Always 10 kΩ or higher
      H20-7 (RR-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. A003BXXE25
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Component without harness connected

      (Front No. 2 Speaker Assembly)

      Disconnect the D52*1 and/or D53*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      1 (+) - 2 (TWL+) Always Below 1 Ω
      3 (-) - 4 (TWL-)
      for RH Side
      Tester Connection Condition Specified Condition
      1 (+) - 2 (TWR+) Always Below 1 Ω
      3 (-) - 4 (TWR-)

    NG

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    OK

    REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY Click here

  7. INSPECT FRONT NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the speaker with a new or normally functioning one Click here.

    2. Check that the malfunction disappears.

      Tech Tips


      • Connect all speaker connectors to the speakers.

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

      Result
      Result Proceed to
      Malfunction does not disappear A
      Malfunction disappears B

    B

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

    A

  8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 2 SPEAKER)


    1. A003AJUE01
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Radio Receiver Assembly)
      *4

      Front view of wire harness connector

      (to Front No. 2 Speaker Assembly)

      Disconnect the D1 radio receiver connector.

    2. Disconnect the D52*1 and/or D53*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      D1-2 (FL+) - D53-1 (+) Always Below 1 Ω
      D1-6 (FL-) - D53-3 (-)
      D1-2 (FL+) - Body ground Always 10 kΩ or higher
      D1-6 (FL-) - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      D1-1 (FR+) - D52-1 (+) Always Below 1 Ω
      D1-5 (FR-) - D52-3 (-)
      D1-1 (FR+) - Body ground Always 10 kΩ or higher
      D1-5 (FR-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  9. INSPECT FRONT NO. 3 SPEAKER ASSEMBLY


    1. A003BRPE10
      Text in Illustration
      *1

      Component without harness connected

      (Front No. 3 Speaker Assembly)

      Disconnect the D51 speaker connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (CTR+) - 1 (CTR-) Always 40 Ω
      4 (+) - 3 (-) Always 40 Ω

    NG

    REPLACE FRONT NO. 3 SPEAKER ASSEMBLY Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - FRONT NO. 3 SPEAKER)


    1. A003E3VE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Radio Receiver Assembly)
      *2

      Front view of wire harness connector

      (to Front No. 3 Speaker Assembly)

      Disconnect the D1 radio receiver connector.

    2. Disconnect the D51 speaker connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D1-1 (FR+) - D51-4 (+) Always Below 1 Ω
      D1-5 (FR-) - D51-3 (-)
      D1-2 (FL+) - D51-2 (CTR+)
      D1-6 (FL-) - D51-1 (CTR-)
      D1-1 (FR+) - Body ground Always 10 kΩ or higher
      D1-5 (FR-) - Body ground
      D1-2 (FL+) - Body ground
      D1-6 (FL-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  11. CHECK SPEAKER


    1. Check the malfunctioning speakers.

      Result
      Result Proceed to
      Rear No. 1 speaker assembly A
      Rear No. 2 speaker assembly B

    B

    INSPECT REAR NO. 2 SPEAKER ASSEMBLY Click here

    A

  12. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. A003D0HE01
      Text in Illustration
      *1

      Component without harness connected

      (Rear No. 1 Speaker Assembly)

      Disconnect the F11*1 and/or F12*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always 4 Ω

    NG

    REPLACE REAR NO. 1 SPEAKER ASSEMBLY Click here

    OK

  13. CHECK HARNESS AND CONNECTOR (REAR NO. 1 SPEAKER - REAR NO. 2 SPEAKER)

    *1: for RH Side

    *2: for LH Side


    1. A003BGFE02
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Rear No. 1 Speaker Assembly)
      *4

      Front view of wire harness connector

      (to Rear No. 2 Speaker Assembly)

      Disconnect the F11*1 and/or F12*2 speaker connector.

    2. Disconnect the F3*1 and/or F8*2 speaker connector.

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      F12-1 - F8-3 (+TW) Always Below 1 Ω
      F12-2 - F8-1 (-TW)
      F12-1 - Body ground Always 10 kΩ or higher
      F12-2 - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      F11-1 - F3-3 (+TW) Always Below 1 Ω
      F11-2 - F3-1 (-TW)
      F11-1 - Body ground Always 10 kΩ or higher
      F11-2 - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

  14. INSPECT REAR NO. 2 SPEAKER ASSEMBLY


    1. Temporarily replace the speaker with a new or normally functioning one Click here.

    2. Check that the malfunction disappears.

      Tech Tips


      • Connect all speaker connectors to the speakers.

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

      Result
      Result Proceed to
      Malfunction does not disappear A
      Malfunction disappears B

    B

    REPLACE REAR NO. 2 SPEAKER ASSEMBLY Click here

    A

  15. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR NO. 2 SPEAKER)


    1. A003E2HE01
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Radio Receiver Assembly)
      *4

      Front view of wire harness connector

      (to Rear No. 2 Speaker Assembly)

      Disconnect the D2 radio receiver connector.

    2. Disconnect the F3*1 and/or F8*2 speaker connector.

      *1: for RH Side

      *2: for LH Side

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

      Standard Resistance
      for LH Side
      Tester Connection Condition Specified Condition
      D2-2 (RL+) - F8-4 (+) Always Below 1 Ω
      D2-6 (RL-) - F8-2 (-)
      D2-2 (RL+) - Body ground Always 10 kΩ or higher
      D2-6 (RL-) - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      D2-1 (RR+) - F3-4 (+) Always Below 1 Ω
      D2-3 (RR-) - F3-2 (-)
      D2-1 (RR+) - Body ground Always 10 kΩ or higher
      D2-3 (RR-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here