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

DTC Code DTC Name
Radio Broadcast cannot be Received or Poor Reception

WIRING DIAGRAM

E334245E11

PROCEDURE

  1. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

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

      OK

      Automatic station search function stops on a station.

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    NG

  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 not installed.

      Note:

      Do not remove optional components without the permission of the customer.

    Result

    Proceed to

    OK

    NG
    NG

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

    OK

  3. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. E276819

      Remove the antenna connector from the radio and display receiver assembly.

    2. Turn the power switch to on (ACC) with the radio and display 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 and display receiver assembly antenna jack and check that noise can be heard from the speakers.

      OK

      Noise can be heard from the speakers.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here

    OK

  4. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

    1. Disconnect the RA radio and display 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 AND DISPLAY RECEIVER ASSEMBLY

    Click here

    OK

  5. CHECK ANTENNA CORD SUB-ASSEMBLY

    1. E288614C03

      *a

      Front view of wire harness connector

      (to Radio and Display Receiver Assembly)

      *b

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)

      Disconnect the radio and display receiver assembly connector.

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

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      RA-3 (MAIN) - 2

      Always

      Below 1 Ω

      RA-5 (ANT+) - 3

      Always

      Below 1 Ω

      RA-3 (MAIN) - Body ground

      Always

      10 kΩ or higher

      RA-5 (ANT+) - 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 Antenna Cord Sub-assembly)

      *b

      Front view of wire harness connector

      (to No. 3 Antenna Cord Sub-assembly)

      Remove the antenna connector from the antenna cord sub-assembly.

    2. Remove the antenna connector from the No. 3 antenna cord sub-assembly.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      2 - 1

      Always

      Below 1 Ω

      3 - 3

      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 NO. 2 ANTENNA CORD SUB-ASSEMBLY

    Click here

    OK

  7. CHECK NO. 3 ANTENNA CORD SUB-ASSEMBLY

    1. E335190C01

      *A

      Except models with the vehicle identification number on the certification label ending with the character X.

      *B

      Only for models with the vehicle identification number on the certification label ending with the character X.

      *a

      Front view of wire harness connector

      (to No. 1 Amplifier Antenna Assembly)

      *b

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)

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

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

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      2 - 1

      Always

      Below 1 Ω

      1 - 3

      Always

      Below 1 Ω

      2 - Body ground

      Always

      10 kΩ or higher

      1 - 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

      OK

      Radio broadcasts can be received normally.

    Result

    Proceed to

    OK

    NG
    OK

    END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

    Click here