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

DESCRIPTION

The radio receiver assembly sends sound signals to the speakers.

WIRING DIAGRAM

A01IQWQE02
A01INTEE01

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 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

      • *: for 6 Speakers


    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 the 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. A01IODRE02
      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 H1 radio receiver connector.

    2. Disconnect the H41*1 and/or H42*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 RH Side
      Tester Connection Condition Specified Condition
      H1-1 (FR+) - H41-4 (+) Always Below 1 Ω
      H1-5 (FR-) - H41-2 (-)
      H1-1 (FR+) - Body ground Always 10 kΩ or higher
      H1-5 (FR-) - Body ground
      for LH Side
      Tester Connection Condition Specified Condition
      H1-2 (FL+) - H42-4 (+) Always Below 1 Ω
      H1-6 (FL-) - H42-2 (-)
      H1-2 (FL+) - Body ground Always 10 kΩ or higher
      H1-6 (FL-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  5. INSPECT FRONT NO. 1 SPEAKER ASSEMBLY


    1. A01IPX5

      Disconnect the J1*1 and/or K1*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. A01INHUE02
      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 H41*1 and/or H42*2 speaker connector.

    2. Disconnect the J1*1 and/or K1*2 speaker connector.

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

      Standard Resistance
      for RH Side
      Tester Connection Condition Specified Condition
      H41-3 (TWR+) - J1-1 Always Below 1 Ω
      H41-1 (TWR-) - J1-2
      H41-3 (TWR+) - Body ground Always 10 kΩ or higher
      H41-1 (TWR-) - Body ground
      for LH Side
      Tester Connection Condition Specified Condition
      H42-3 (TWL+) - K1-1 Always Below 1 Ω
      H42-1 (TWL-) - K1-2
      H42-3 (TWL+) - Body ground Always 10 kΩ or higher
      H42-1 (TWL-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE FRONT NO. 2 SPEAKER ASSEMBLY Click here

  7. INSPECT REAR SPEAKER ASSEMBLY


    1. A01IQO0

      Disconnect the L2*1 and/or M2*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 SPEAKER)


    1. A01ITPSE02
      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 Speaker Assembly)

      Disconnect the H2 radio receiver connector.

    2. Disconnect the L2*1 and/or M2*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 RH Side
      Tester Connection Condition Specified Condition
      H2-1 (RR+) - L2-1 Always Below 1 Ω
      H2-3 (RR-) - L2-2
      H2-1 (RR+) - Body ground Always 10 kΩ or higher
      H2-3 (RR-) - Body ground
      for LH Side
      Tester Connection Condition Specified Condition
      H2-2 (RL+) - M2-1 Always Below 1 Ω
      H2-6 (RL-) - M2-2
      H2-2 (RL+) - Body ground Always 10 kΩ or higher
      H2-6 (RL-) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here