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

WIRING DIAGRAM

A01CFX1E36

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

        Note

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


    B

    CHECK RADIO RECEIVER ASSEMBLY Click here

    A

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

  3. CHECK RADIO RECEIVER ASSEMBLY


    1. A01CDVS

      Preparation for check


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

    2. Check for noise


      1. Turn the engine 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 speakers.

        OK
        Noise can be heard from the speakers.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  4. CHECK GLASS ANTENNA


    1. A01CDISE01

      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 negative 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 Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - AMPLIFIER ANTENNA ASSEMBLY)


    1. Disconnect the radio receiver assembly and amplifier antenna assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F3-8 (ANT) - F1-1 (B) Always Below 1 Ω
      F3-8 (ANT) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT RADIO RECEIVER ASSEMBLY


    1. A01CFX0E04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Amplifier Antenna Assembly)

      Reconnect 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
      F1-1 (B) - Body ground

      Engine switch on (IG)

      Radio switch on

      		 11 to 14 V

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  7. REPLACE ANTENNA CORD


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

      OK
      Radio broadcasts can be received normally.

    NG

    REPLACE AMPLIFIER ANTENNA ASSEMBLY Click here

    OK

    NORMAL OPERATION

  8. REPLACE AMPLIFIER ANTENNA ASSEMBLY


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

      OK
      Radio broadcasts can be received.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    NORMAL OPERATION