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

PROCEDURE


  1. CHECK RADIO RECEIVER ASSEMBLY


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

      Result
      Proceed to
      Automatic station search function does not stop
      Automatic station search function stops on a station

    Automatic station search function stops on a station

    USE SIMULATION METHOD TO CHECK Click here

    Automatic station search function does not stop

  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 the permission of the customer.

      Result
      Proceed to
      Optional components are not installed
      Optional components are installed

    Optional components are installed

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

    Optional components are not installed

  3. CHECK RADIO RECEIVER ASSEMBLY


    1. A01V6PH

      Remove the antenna connector from the radio receiver assembly.

    2. Turn the ignition switch ACC with the radio receiver assembly connector connected.

    3. Turn the radio on and tune 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.

      Result
      Proceed to
      Noise can be heard from the speakers
      Noise cannot be heard from the speakers

    Noise cannot be heard from the speakers

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    Noise can be heard from the speakers

  4. INSPECT RADIO RECEIVER ASSEMBLY


    1. Disconnect the RA radio receiver assembly connector.

    2. A01V89OE31

      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
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  5. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. A01V84QC02
      *a

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Radio Receiver Assembly)

      Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the radio receiver assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 - RA-3 (MAIN) Always Below 1 Ω
      3 - RA-5 (ANT+) Always Below 1 Ω
      2 - Body ground Always 10 kΩ or higher
      3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  6. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. A01V9IQC02
      *a

      Front view of wire harness connector

      (to No. 3 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to Antenna Cord Sub-assembly)

      Disconnect the antenna connector from the No. 3 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the antenna cord sub-assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always Below 1 Ω
      3 - 3 Always Below 1 Ω
      1 - Body ground Always 10 kΩ or higher
      3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO.2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  7. CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY


    1. A01V6SLC01
      *a

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Amplifier Antenna Assembly)

      Disconnect the antenna connector from the No. 2 antenna cord sub-assembly.

    2. Disconnect the antenna connector from the No. 1 amplifier antenna assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 2 Always Below 1 Ω
      3 - 1 Always Below 1 Ω
      1 - Body ground Always 10 kΩ or higher
      3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO.3 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  8. CHECK NO. 1 AMPLIFIER ANTENNA ASSEMBLY


    1. Replace the No. 1 amplifier antenna assembly and check if radio broadcasts can be received normally.

      Click here

      Result
      Proceed to
      Radio broadcasts can be received normally
      Radio broadcasts cannot be received normally

    Radio broadcasts can be received normally

    END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)

    Radio broadcasts cannot be received normally

    REPLACE RADIO RECEIVER ASSEMBLY Click here