NAVIGATION SYSTEM(for Navigation Receiver Type) Radio Broadcast cannot be Received or Poor Reception

PROCEDURE


  1. CHECK NAVIGATION 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 does not stop. A
        Automatic station search function stops on a station. B

    B

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    A

  2. CHECK OPTIONAL COMPONENTS


    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 not installed. A
      Optional components are installed. B

      Note

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


    B

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

    A

  3. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. A01RJMD

      Preparation for check


      1. Disconnect the antenna connector from the navigation receiver assembly.

    2. Check for noise


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

        OK
        Noise can be heard from the speakers.
      Result
      Proceed to
      OK
      NG

    NG

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    OK

  4. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Disconnect the RA navigation receiver assembly connector.

    2. A01RK4VC09
      *a

      Component without harness connected

      (Navigation Receiver Assembly)

      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 and FM or AM selected

      		 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

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    OK

  5. REPLACE ANTENNA CORD SUB-ASSEMBLY (for Radio Antenna)


    1. Replace the antenna cord sub-assembly (for radio antenna) with a new or known good one and check if radio broadcasts can be received normally.

      Click here

      OK
      Radio broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  6. REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. Replace the No. 2 antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.

      Click here

      OK
      Radio broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  7. REPLACE NO. 3 ANTENNA CORD SUB-ASSEMBLY


    1. Replace the No. 3 antenna cord sub-assembly with a new or known good one and check if radio broadcasts can be received normally.

      Click here

      OK
      Radio broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  8. REPLACE ROOF ANTENNA ASSEMBLY


    1. Replace the roof antenna assembly with a new or known good one and check if radio broadcasts can be received normally.

      Click here

      OK
      Radio broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here