AUDIO AND VISUAL SYSTEM Radio Broadcast cannot be Received (Bad Reception)

WIRING DIAGRAM

A011BSFE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK RADIO RECEIVER ASSEMBLY


    1. Check if the radio auto-search functions properly.


      1. Tune the radio using the auto-search function and check that it operates normally.

        OK
        The radio auto-search functions properly.

    NG

    CHECK OPTIONAL COMPONENTS Click here

    OK

    END

  2. CHECK OPTIONAL COMPONENTS


    1. Check if any optional components, such as a telephone antenna, are installed.

      OK
      Optional component(s) installed.

    NG

    CHECK ANTENNA FOR NOISE PRODUCTION Click here

    OK

    EFFECT FROM OPTIONAL COMPONENTS

  3. CHECK ANTENNA FOR NOISE PRODUCTION


    1. With the ignition switch to ACC, turn on the radio and select the AM mode.

    2. Remove the roof antenna pole sub-assembly.

    3. Place the tip of a screwdriver on the antenna and check that noise is heard from the speaker.

      OK
      Noise occurs.

    4. Install the roof antenna pole sub-assembly.


    NG

    CHECK INSTALLATION OF ANTENNA GROUND Click here

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

  4. CHECK INSTALLATION OF ANTENNA GROUND


    1. Check that the antenna amplifier ground is securely fastened to the body.

      OK
      Ground is securely fastened to body.

    2. Check that the No. 2 antenna cord sub-assembly ground is securely fastened to the body.

      OK
      Ground is securely fastened to body.

    NG

    CORRECTLY INSTALL GROUND

    OK

  5. CHECK AMPLIFIER ANTENNA ASSEMBLY


    1. A0119Z4E03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-Assembly)

      Disconnect the amplifier antenna connectors.

    2. With the ignition switch to ON, turn on the radio and select the AM mode.

    3. Place the tip of a screwdriver against the metal terminal of the No. 2 antenna cord sub-assembly and check that noise is heard from the speaker.

      OK
      Noise occurs.

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      1(ANT) - Body ground During radio (AM) reception 11 to 14 V

    5. Reconnect the amplifier antenna connectors.


    NG

    CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

    REPLACE ANTENNA AMPLIFIER ASSEMBLY Click here

  6. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. A0117ASE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Antenna Cord Sub-Assembly)

      Disconnect the antenna cord sub-assembly connector.

    2. With the ignition switch to ON, turn on the radio and select the AM mode.

    3. Place the tip of a screwdriver against the metal terminal of the antenna cord sub-assembly and check that noise is heard from the speaker.

      OK
      Noise occurs.

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      1(ANT +B) - Body ground During radio (AM) reception 11 to 14 V

    5. Reconnect the antenna cord sub-assembly connector.


    NG

    CHECK ANTENNA CORD SUB-ASSEMBLY Click here

    OK

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

  7. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. A0119MDE01
      Text in Illustration
      *1

      Component without antenna plug

      (to Radio Receiver Assembly)

      Remove the antenna plug of the radio receiver assembly.

    2. With the radio receiver connector connected, turn the ignition switch to ACC.

    3. Turn on the radio and select the AM mode.

    4. Place the tip of a screwdriver or a piece of metal, such as a thin wire, on the antenna jack of the radio receiver. Check that noise is heard from the speakers.

      OK
      Noise occurs.
    5. A0119W4E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Antenna Cord Sub-Assembly)

      Disconnect the D60 amplifier antenna connector.

    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      D60-2(ANT) - Body ground During radio (AM) reception 11 to 14 V

    7. Reconnect the amplifier antenna connector.

    8. Install the antenna plug.


    NG

    CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - ANTENNA CORD SUB-ASSEMBLY) Click here

    OK

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

  8. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - ANTENNA CORD SUB-ASSEMBLY)


    1. A0119RSE01
      Text in Illustration
      *1

      Component with harness connected

      (Radio Receiver Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D61-8(ANT) - D61-7(GND) During radio (AM) reception 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here