AUDIO AND VISUAL SYSTEM(for Radio Receiver Type) Radio Broadcast cannot be Received or Poor Reception

PROCEDURE


  1. CHECK RADIO RECEIVER ASSEMBLY


    1. Check the radio automatic station search function.


      1. Check the radio automatic station search function by activating it.

        OK
        The radio automatic station search function works properly.

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  2. CHECK OPTIONAL COMPONENTS


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

      Result
      Result Proceed to
      Optional components are installed A
      Optional components are not installed B

      Note

      Do not remove optional components without the permission of the customer.


    A

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

    B

  3. CHECK ANTENNA FOR NOISE PRODUCTION


    1. With the ignition switch 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.


    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  4. CHECK INSTALLATION OF ANTENNA GROUND


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

      OK
      Ground is securely fastened to body.

    2. Check that the 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. A0049I1E01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Amplifier Antenna Assembly)

      Disconnect the amplifier antenna connectors.

    2. With the ignition switch 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 speakers.

      OK
      Noise occurs.

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

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

    5. Reconnect the amplifier antenna connectors.


    OK

    REPLACE AMPLIFIER ANTENNA ASSEMBLY Click here

    NG

  6. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. A004B0AE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-Assembly)

      Disconnect the No. 2 antenna cord sub-assembly connectors.

    2. With the ignition switch ACC, 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 speakers.

      OK
      Noise occurs.

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

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

    5. Reconnect the No. 2 antenna cord sub-assembly connectors.


    OK

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    NG

  7. CHECK RADIO RECEIVER ASSEMBLY


    1. A004953

      Disconnect the antenna connector from the radio receiver assembly.

    2. With the radio receiver assembly 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 against the metal terminal of the radio receiver assembly and check that noise is heard from the speaker.

      OK
      Noise occurs.
    5. A004B6LE01

      Reconnect the antenna connector to the radio receiver assembly.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5 - Body ground During radio (AM) reception 11 to 14 V
      Text in Illustration
      *a

      Component with harness connected

      (Radio Receiver Assembly)

    OK

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here