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

WIRING DIAGRAM

B007U8IE07
B007RNPE04

INSPECTION PROCEDURE

Note

Check that the wire harness is properly installed and does not have any sharp bends, pinching or loose connections Click here.

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 not installed.

      Note

      Do not remove optional components without permission of the customer.

      OK
      Optional components are not installed.
      Result
      Result Proceed to
      OK (for Antenna Holder Type) A
      OK (for Glass Antenna Type) B
      NG C

    B

    CHECK RADIO ANTENNA Click here

    C

    INSPECT SIDE REAR WINDOW ASSEMBLY RH (GLASS ANTENNA) Click here

    A

    REMOVE OPTIONAL COMPONENTS (SEE NOTICE ABOVE)

  3. CHECK RADIO ANTENNA


    1. B007RJO

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

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

    3. Place a screwdriver, thin wire or other metal object on the antenna with holder assembly and check that noise can be heard from the speakers.

      OK
      Noise Occurs.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

  4. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. B007URD

      Disconnect the antenna plug from the antenna with holder assembly.

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

      OK
      Noise Occurs.

    NG

    CHECK RADIO RECEIVER ASSEMBLY (ANTENNA) Click here

    OK

    REPLACE ANTENNA WITH HOLDER ASSEMBLY Click here

  5. CHECK RADIO RECEIVER ASSEMBLY (ANTENNA)


    1. B007OTC

      Remove the antenna connector from the radio receiver assembly.

    2. Turn the ignition switch to ACC with 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

  6. INSPECT RADIO RECEIVER ASSEMBLY


    1. B007UURE02

      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
      3 (MAIN) - 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

  7. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. Replace the antenna cord sub-assembly with known good one and check if radio broadcasting can be received normally Click here.

      OK
      Radio broadcasts can be received normally.

    NG

    CHECK ANTENNA WITH HOLDER ASSEMBLY Click here

    OK

    END (ANTENNA CORD SUB-ASSEMBLY IS DEFECTIVE)

  8. CHECK ANTENNA WITH HOLDER ASSEMBLY


    1. Check that the antenna with holder assembly is securely installed.

      OK
      The antenna with holder assembly is installed properly.

    NG

    REINSTALL ANTENNA WITH HOLDER ASSEMBLY Click here

    OK

  9. CHECK ANTENNA WITH HOLDER ASSEMBLY


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

      OK
      Radio broadcasts can be received normally.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    END (ANTENNA WITH HOLDER ASSEMBLY IS DEFECTIVE)

  10. INSPECT SIDE REAR WINDOW ASSEMBLY RH (GLASS ANTENNA)


    1. Inspect the side rear window assembly RH (glass antenna) Click here.


    NG

    REPAIR OR REPLACE SIDE REAR WINDOW ASSEMBLY RH Click here

    OK

  11. CHECK RADIO RECEIVER ASSEMBLY (ANTENNA)

    B007OTC

    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

  12. INSPECT RADIO RECEIVER ASSEMBLY


    1. B007UURE01

      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

  13. CHECK ANTENNA CORD SUB-ASSEMBLY


    1. B007UITE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Radio Receiver Assembly)
      *b

      Front view of wire harness connector

      (to No. 2 Antenna Cord Sub-assembly)

      Disconnect the radio 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

    NG

    REPLACE ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  14. CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY


    1. B007SHNE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Antenna Cord Sub-assembly)
      *b

      Front view of wire harness connector

      (to No. 1 Amplifier Antenna Assembly)

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

    2. Remove 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
      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

    NG

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY Click here

    OK

  15. REPLACE NO. 1 AMPLIFIER ANTENNA ASSEMBLY


    1. Replace the No. 1 amplifier antenna assembly with known good one and check if radio broadcasts can be received normally Click here.

      OK
      Radio broadcasts can be received normally.

    NG

    REPLACE RADIO RECEIVER ASSEMBLY Click here

    OK

    END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)