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

WIRING DIAGRAM

A01DTLLE08

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK NAVIGATION RECEIVER ASSEMBLY


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

      OK
      Automatic station search function stops on a station.

    NG

    CHECK OPTIONAL COMPONENTS Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  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.

      OK
      Optional components are installed.

      Note

      Do not remove optional components without permission of the customer.


    NG

    CHECK NAVIGATION RECEIVER ASSEMBLY Click here

    OK

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

  3. CHECK NAVIGATION RECEIVER ASSEMBLY


    1. A01DSQ5

      Remove the antenna connector from the navigation receiver assembly.

    2. Turn the engine switch on (ACC) with the navigation receiver assembly connector connected.

    3. Turn on the radio and turn into AM mode.

    4. 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 occurs.

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  4. INSPECT QUARTER WINDOW ASSEMBLY (WINDOW GLASS ANTENNA WIRE)


    1. Inspect the quarter window assembly (window glass antenna wire) Click here.


    NG

    REPAIR QUARTER WINDOW ASSEMBLY Click here

    OK

  5. INSPECT NAVIGATION RECEIVER ASSEMBLY


    1. Disconnect the RA navigation receiver assembly connector.

    2. A01DPK2E01

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

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

      Engine switch on (ACC)

      Radio switch on

      		 11 to 14 V

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

  6. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. A01DSGTE04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Navigation Receiver Assembly)
      *b

      Front view of wire harness connector

      (to Holder Antenna Assembly)

      Disconnect the antenna connector from the navigation receiver assembly.

    2. Disconnect the antenna connector from the holder antenna assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      RA-3 (RMAIN2) - 3 Always Below 1 Ω
      RA-5 (ANT+) - 1 Always Below 1 Ω
      RA-3 (RMAIN2) - Body ground Always 10 kΩ or higher
      RA-5 (ANT+) - Body ground Always 10 kΩ or higher

    NG

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  7. CHECK HOLDER ANTENNA ASSEMBLY


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

      OK
      Radio broadcasts can be received.

    NG

    REPLACE NAVIGATION RECEIVER ASSEMBLY Click here

    OK

    END (HOLDER ANTENNA ASSEMBLY IS DEFECTIVE)