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

DTC Code DTC Name
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 hereClick hereClick 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. E187251

      Remove the antenna connector from the radio receiver assembly.

    2. Turn the Power switch on (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. E188455E31

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      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

    REPLACE RADIO RECEIVER ASSEMBLY

    Click here

    OK

  5. CHECK ANTENNA CORD SUB-ASSEMBLY

    1. E288797C02

      *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. E288795C02

      *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. E333809C01

      *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