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

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   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.

   
   
   • OKClick here
   • NGClick here
2. Click here

   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.

   
   
   • OKClick here
   • NGClick here
3. Click here

   CHECK RADIO ANTENNA

   
   

   1. Remove the roof antenna pole sub-assembly from the amplifier antenna assembly.

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

   3. Place a screwdriver, thin wire or other metal object on the amplifier antenna threaded installation position for the roof antenna pole sub-assembly, and check that noise can be heard from the speakers.

      OK
      Noise can be heard from the speakers.

   
   
   • OKClick here
   • NGClick here
4. Click here

   CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

   
   
   1. 

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

   2. Turn the ignition switch to 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.

   
   
   • OKClick here
   • NGClick here
5. Click here

   INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

   
   
   1. 

      Disconnect the RA radio and display 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

   
   
   • OKClick here
   • NGClick here
6. Click here

   CHECK ANTENNA CORD SUB-ASSEMBLY

   
   
   1. 

      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+) - 1 Always Below 1 Ω RA-3 (MAIN) - Body ground Always 10 kΩ or higher RA-5 (ANT+) - Body ground Always 10 kΩ or higher

      Table 1. Text in Illustration

      *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)

   
   
   • OKClick here
   • NGClick here
7. Click here

   CHECK NO. 2 ANTENNA CORD SUB-ASSEMBLY

   
   
   1. 

      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 - 2 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

      Table 2. 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)

   
   
   • OKClick here
   • NGClick here
8. Click here

   CHECK ROOF ANTENNA POLE SUB-ASSEMBLY

   
   

   1. Check that the roof antenna pole sub-assembly is securely installed.

      OK
      The roof antenna pole sub-assembly is installed properly.

   
   
   • OKClick here
   • NGClick here
9. Click here

   CHECK ROOF ANTENNA POLE SUB-ASSEMBLY

   
   

   1. Replace the roof antenna pole sub-assembly and check if radio broadcasts can be received normally.

      OK
      Radio broadcasts can be received normally.

   
   
   • OKClick here
   • NGClick here
10. Click here

    CHECK NO. 1 AMPLIFIER ANTENNA ASSEMBLY

    
    

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

       
       

       • w/ DAB Function:Click here

       • w/o DAB Function:Click here

       OK
       Radio broadcasts can be received normally.

    
    
    • OKClick here
    • NGClick here
11. Click here

    USE SIMULATION METHOD TO CHECKClick here

12. Click here

    REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

13. Click here

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLYClick here

14. Click here

    REPLACE ANTENNA CORD SUB-ASSEMBLYClick here

15. Click here

    REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLYClick here

16. Click here

    REINSTALL ROOF ANTENNA POLE SUB-ASSEMBLY

17. Click here

    END (ROOF ANTENNA POLE SUB-ASSEMBLY IS DEFECTIVE)

18. Click here

    END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)