AUDIO AND VISUAL SYSTEM (w/ Navigation System) Radio Broadcast cannot be Received or Poor Reception

INSPECTION PROCEDURE

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.

        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 RADIO 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 RECEIVER ASSEMBLY Click here

    A

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

  3. CHECK RADIO RECEIVER ASSEMBLY


    1. A01NG8Z

      Preparation for check


      1. Remove the antenna plug from the radio receiver assembly.

    2. Check for noise


      1. Turn the power switch on (ACC) with the radio 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 radio receiver assembly antenna jack and check that noise can be heard from the speaker.

        OK
        Noise can be heard from the speaker.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  4. CHECK GLASS ANTENNA


    1. A01NE28E01

      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 the 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 GLASS ANTENNA

    OK

  5. INSPECT RADIO RECEIVER ASSEMBLY


    1. A01NHCXE03
      Text in Illustration
      *1

      Component without harness connected

      (Radio Receiver Assembly)

      Disconnect the radio receiver assembly connector.

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

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

      Power switch on (ACC)

      Radio switch on

      		 11 to 14 V

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  6. CHECK ANTENNA CORD


    1. Remove the antenna plug of the radio receiver assembly and antenna.

    2. Measure the resistance between the antenna and radio 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 Click here

    OK

  7. REPLACE AMPLIFIER ANTENNA ASSEMBLY


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

      OK
      Radio broadcasts can be received.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    NORMAL OPERATION