NAVIGATION SYSTEM TV Screen is Distorted

CAUTION / NOTICE / HINT

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the radio receiver assembly or navigation ECU, always replace it with a new one. If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly or navigation ECU may not operate normally.

PROCEDURE


  1. CHECK OPTIONAL COMPONENTS


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

  2. CHECK WINDOW GLASS ANTENNA WIRE


    1. B0073YNC14
      *a Tester Probe
      *b Antenna Wire
      *c Tin Foil

      Check for continuity in the window glass antenna wire.

      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 window glass antenna wire.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR WINDOW GLASS ANTENNA WIRE Click here

    OK

  3. CHECK DTV RECEPTION CHECK (OPERATION CHECK)


    1. Enter the "DTV reception check" screen. Refer to Check Digital Television Reception in Operation Check.

      Click here

      Tech Tips


      • As digital TV is a terrestrial broadcast, the digital TV antenna cannot receive the signal in places where the signal may not reach the vehicle, such as mountains or tunnels.

      • Even in areas where digital TV broadcasts for households can be received, the in-vehicle digital TV may not be able to receive the broadcast.

    2. B0075H0

      Check the digital TV tuner reception level.

      Tech Tips


      • Do not depend solely on the reception level as a reference value as it may vary depending on signal condition such as wave interference.

      • If the result changes after turning around the vehicle, it is not due to a malfunction, but is caused by a local weak electric field.

      OK
      Digital TV tuner reception level check result indicates good reception.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    NG

  4. REPLACE ANTENNA CORD SUB-ASSEMBLY


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

      Click here

      OK
      Digital television broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  5. REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY


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

      Click here

      OK
      Digital television broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  6. REPLACE QUARTER WINDOW ASSEMBLY RH


    1. Replace the quarter window assembly RH with a new or known good one and check if digital television broadcasts can be received normally.

      Click here

      OK
      Digital television broadcasts can be received normally.
      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

    REPLACE NAVIGATION ECU Click here