AUDIO AND VISUAL SYSTEM (for Radio Receiver Type) Radio Broadcast cannot be Received (Bad Reception)

WIRING DIAGRAM

A01J5S9E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY


    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.

      Note

      Do not remove optional components without permission of the customer.

      OK
      Optional components are installed.

    NG

    CHECK ANTENNA FOR NOISE PRODUCTION Click here

    OK

    REPLACE OPTIONAL COMPONENTS (SEE NOTICE ABOVE)

  3. CHECK ANTENNA FOR NOISE PRODUCTION


    1. Remove the quarter window assembly RH (window galss antenna wire) connector.

    2. With the ignition switch ACC, turn on the radio and choose the AM mode.

    3. Place the tip of a screwdriver on the antenna and check that noise is heard from the speakers.

      OK
      Noise is heard.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  4. CHECK RADIO RECEIVER ASSEMBLY (ANTENNA)

    A01J556

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

    2. Turn the ignition switch to ACC with the radio 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 radio receiver assembly antenna jack and check that noise can be heard from the speakers.

      OK
      Noise occurs.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  5. INSPECT RADIO RECEIVER ASSEMBLY


    1. A01J31JE01

      Disconnect the RA radio receiver assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      5 (ANT+) - Body ground Ignition switch ACC, radio switch on and FM or AM selected 11 to 14 V

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  6. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. A01J3UNE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)
      *b

      Front view of wire harness connector

      (to Antenna with Holder Assembly)

      Disconnect the radio receiver assembly connector.

    2. Remove the antenna connector from the antenna with holder assembly.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      RA-3 (MAIN) - 2 Always Below 1 Ω
      RA-5 (ANT+) - 3
      RA-3 (MAIN) - Body ground Always 10 kΩ or higher
      RA-5 (ANT+) - Body ground

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  7. REPLACE ANTENNA WITH HOLDER ASSEMBLY


    1. Temporarily replace the antenna with holder assembly with a new or normally functioning one Click here.


    NEXT

  8. CHECK IF RADIO AUTO-SEARCH FUNCTIONS PROPERLY


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

      OK
      Automatic station search function stops on a station.

    NG

    INSPECT QUARTER WINDOW ASSEMBLY RH (WINDOW GLASS ANTENNA WIRE) Click here

    OK

    END (ANTENNA WITH HOLDER ASSEMBLY IS DEFECTIVE)

  9. INSPECT QUARTER WINDOW ASSEMBLY RH (WINDOW GLASS ANTENNA WIRE)


    1. A01J4SCE15
      Text in Illustration
      *1 Antenna Wire
      *2 Tin Foil
      *3 Tester Probe

      Inspect the quarter window assembly RH (window glass antenna wire).

      Note

      When cleaning the glass, use a soft, dry cloth, and wipe the glass in the direction of the wire. Take care not to damage the wires. Do not use detergents or glass cleaners with abrasive ingredients. When measuring voltage, 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.

    2. A01J4OQ

      Check the voltage at the center of each wire as shown in the illustration.


    NG

    REPLACE QUARTER WINDOW ASSEMBLY RH Click here

    OK

    REPLACE RADIO RECEIVER ASSEMBLY Click here