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

WIRING DIAGRAM

PROCEDURE

1. CHECK RADIO 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

   REPLACE RADIO RECEIVER ASSEMBLY Click 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 not installed.

      Note

      Do not remove any optional components installed by the customer without his or her consent.

      OK
      Optional components are installed.

      Result
      Proceed to OK NG

   
   

   OK

   REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

   NG

3. CHECK RADIO RECEIVER ASSEMBLY

   
   

   1. 

      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.

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE RADIO RECEIVER ASSEMBLY Click here

   OK

4. CHECK RADIO RECEIVER ASSEMBLY

   
   

   1. 

      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

      Result
      Proceed to OK NG

   
   

   NG

   REPLACE RADIO RECEIVER ASSEMBLY Click here

   OK

5. CHECK ANTENNA CORD SUB-ASSEMBLY

   
   
   1. 

      *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)

      Remove the antenna connector from the radio receiver assembly.

   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. 

      *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 - 2 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. 1 AMPLIFIER ANTENNA ASSEMBLY

   
   

   1. Check that the No. 1 amplifier antenna assembly is securely installed.

      OK
      The No. 1 amplifier antenna assembly is installed properly.

      Result
      Proceed to OK NG

   
   

   NG

   REINSTALL NO. 1 AMPLIFIER ANTENNA 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

9. CHECK ROOF ANTENNA POLE SUB-ASSEMBLY

   
   

   1. Replace the roof antenna pole sub-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 (ROOF ANTENNA POLE SUB-ASSEMBLY IS DEFECTIVE)

   NG

   REPLACE RADIO RECEIVER ASSEMBLY Click here