AUDIO AND VISUAL SYSTEM Radio Broadcast cannot be Received or Poor Reception

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. Check the radio automatic station search function.


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

        Result
        Result Proceed to
        Automatic station search function stops on a station. A
        Automatic station search function does not stop. B

    B

    CHECK OPTIONAL COMPONENTS Click here

    A

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

  2. CHECK OPTIONAL COMPONENTS


    1. Check optional components (sunshade film, telephone antenna, etc.).


      1. Check if any optional components that may decrease reception capacity, such as sunshade film or a telephone antenna, are installed.

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

        Note

        Do not remove any optional components installed by the customer without his or her consent.


    B

    CHECK RADIO ANTENNA Click here

    A

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

  3. CHECK RADIO ANTENNA


    1. Check for noise


      1. Turn the engine switch on (ACC) with the multi-media module receiver assembly connector connected.

      2. Turn the radio on and tune into AM mode.

      3. Place a screwdriver, thin wire, or other metal object on the amplifier antenna threaded installation portion for the antenna and check that noise can be heard from the speakers.

        Result
        Result Proceed to
        Noise does not occur. A
        Noise occurs. B

    B

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    A

  4. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. A01GKTO

      Preparation for check


      1. Remove the antenna connector from the multi-media module receiver assembly.

    2. Check for noise


      1. Turn the engine switch on (ACC) with the multi-media module receiver assembly connector connected.

      2. Turn the radio on and tune into AM mode.

      3. Place a screwdriver, thin wire or other metal object on the multi-media module receiver assembly antenna jack and check that noise can be heard from the speakers.

        OK
        Noise can be heard from the speaker.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  5. CHECK WINDOW GLASS ANTENNA WIRE


    1. A01GJEXE16
      Text in Illustration
      *1 Tester Probe
      *2 Antenna Wire
      *3 Tin Foil

      Check for continuity of the antenna.

      Tech Tips

      Check for continuity at the center of each antenna wire as shown in the illustration.

      Note

      When cleaning the glass, wipe it in the direction of the wire with a soft dry cloth. Take care not to damage the wire. Do not use detergents or glass cleaners with abrasive ingredients. When measuring resistance, wrap a piece of tin foil around the tip of each probe and press the foil against the wire with your finger as shown in the illustration.

      OK
      There is continuity in the antenna.

    NG

    REPAIR WINDOW GLASS ANTENNA WIRE Click here

    OK

  6. INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. Disconnect the multi-media module receiver assembly connector.

    2. A01GIPHE30
      Text in Illustration
      *a

      Component without harness connected

      (Multi-media Module Receiver Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      RA-5 (ANT+) - Body ground

      Engine switch on (ACC)

      Radio switch on

      		 11 to 14 V

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

  7. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. Remove the antenna connector of the multi-media module receiver assembly and antenna.

    2. Measure the resistance between the antenna and multi-media module receiver assembly to check for an open circuit in the antenna cord.

      Standard resistance
      Below 1 Ω

    3. Measure the resistance between the antenna cord and body ground to check for a short circuit in the antenna cord.

      Standard resistance
      10 kΩ or higher

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  8. CHECK TELEPHONE ANTENNA ASSEMBLY


    1. Temporarily replace the telephone antenna assembly and check if radio broadcasts can be received normally Click here.

      OK
      Radio broadcasts can be received.

    NG

    CHECK AMPLIFIER ANTENNA ASSEMBLY NO.1 Click here

    OK

    NORMAL OPERATION

  9. CHECK AMPLIFIER ANTENNA ASSEMBLY NO.1


    1. Temporarily replace the amplifier antenna assembly and check if radio broadcasts can be received normally Click here.

      OK
      Radio broadcasts can be received.

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

    OK

    NORMAL OPERATION