AUDIO AND VISUAL SYSTEM Speaker Circuit (Built-in Amplifier)

DESCRIPTION

The radio receiver assembly sends sound signals to the speakers.

WIRING DIAGRAM

A003DKRE01

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

    INSPECT REAR NO. 1 SPEAKER ASSEMBLY Click here

    A

  2. CHECK FRONT SIDE SPEAKER


    1. Check the malfunctioning speakers.

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

    B

    INSPECT FRONT NO. 1 SPEAKER ASSEMBLY Click here

    A

  3. 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

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


    1. A003BXQE01
      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 D39*1 and/or D40*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+) - D40-4 (+) Always Below 1 Ω
      D1-6 (FL-) - D40-2 (-)
      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+) - D39-4 (+) Always Below 1 Ω
      D1-5 (FR-) - D39-2 (-)
      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

  5. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A003AODE27
      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 4 Ω

    NG

    REPLACE FRONT NO. 1 SPEAKER ASSEMBLY Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER - FRONT NO. 1 SPEAKER)

    *1: for RH Side

    *2: for LH Side


    1. A003BJ0E01
      Text in Illustration
      *1 for RH Side
      *2 for LH Side
      *3

      Front view of wire harness connector

      (to Front No. 2 Speaker Assembly)
      *4

      Front view of wire harness connector

      (to Front No. 1 Speaker Assembly)

      Disconnect the D39*1 and/or D40*2 speaker connector.

    2. Disconnect the E1*1 and/or E11*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
      D40-3 (TWL+) - E11-1 Always Below 1 Ω
      D40-1 (TWL-) - E11-2
      D40-3 (TWL+) - Body ground Always 10 kΩ or higher
      D40-1 (TWL-) - Body ground
      for RH Side
      Tester Connection Condition Specified Condition
      D39-3 (TWR+) - E1-1 Always Below 1 Ω
      D39-1 (TWR-) - E1-2
      D39-3 (TWR+) - Body ground Always 10 kΩ or higher
      D39-1 (TWR-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

  7. INSPECT REAR NO. 1 SPEAKER ASSEMBLY


    1. A003D0HE01
      Text in Illustration
      *1

      Component without harness connected

      (Rear No. 1 Speaker Assembly)

      Disconnect the F2*1 and/or F7*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

  8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - REAR NO. 1 SPEAKER)


    1. A003EMEE01
      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. 1 Speaker Assembly)

      Disconnect the D2 radio receiver connector.

    2. Disconnect the F2*1 and/or F7*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+) - F7-1 Always Below 1 Ω
      D2-6 (RL-) - F7-2
      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+) - F2-1 Always Below 1 Ω
      D2-3 (RR-) - F2-2
      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