NAVIGATION SYSTEM Radio Broadcast cannot be Received or Poor Reception

CAUTION / NOTICE / HINT

PROCEDURE

1. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

   
   

   1. Check the radio automatic station search function.

      
      

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

         Result
         Result Proceed to Automatic station search function does not stop A Automatic station search function stops on a station B

   
   

   B

   REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

   A

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.

      Result
      Result Proceed to Optional components are not installed A Optional components are installed B

      Note

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

   
   

   B

   REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

   A

3. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

   
   

   1. 

      Preparation for check

      
      

      1. Remove the antenna connector from the multi-media module receiver assembly.

   2. Check for noise

      
      

      1. Turn the power switch on (ACC) with the multi-media module receiver assembly connector connected.

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

      3. Place a screwdriver, thin wire or other metal object on the multi-media module receiver assembly antenna jack and check that noise can be heard from the speakers.

         OK
         Noise can be heard from the speakers.

   
   

   NG

   REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

   OK

4. CHECK WINDOW GLASS ANTENNA WIRE

   
   
   1. 

      Text in Illustration

      *a	Tester Probe
      *b	Antenna Wire
      *c	Tin Foil

      Check for continuity in the window glass antenna wire.

      Tech Tips

      Check for continuity at the center of each antenna wire as shown in the illustration.

      Note

      When cleaning the glass, wipe it in the direction of the wire with a soft dry cloth. Take care not to damage the wire. Do not use detergents or glass cleaners with abrasive ingredients. When measuring resistance, wrap a piece of tin foil around the tip of each probe and press the foil against the wire with your finger, as shown in the illustration.

      OK
      There is continuity in the window glass antenna wire.

   
   

   NG

   REPAIR WINDOW GLASS ANTENNA WIRE Click here

   OK

5. INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY

   
   

   1. Disconnect the RA multi-media module receiver assembly connector.

   2. 

      Text in Illustration

      *a	Component without harness connected (Multi-media Module Receiver Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition RA-5 (ANT+) - Body ground Power switch on (ACC) Radio switch on and AM or FM selected 11 to 14 V

   
   

   NG

   REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

   OK

6. REPLACE ANTENNA CORD SUB-ASSEMBLY

   
   

   1. Replace the antenna cord sub-assembly and check if radio broadcasts can be received normally Click here.

      OK
      Radio broadcasts can be received normally.

   
   

   OK

   NORMAL OPERATION

   NG

7. REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY

   
   

   1. Replace the No. 2 antenna cord sub-assembly and check if radio broadcasts can be received normally Click here.

      OK
      Radio broadcasts can be received normally.

   
   

   OK

   NORMAL OPERATION

   NG

8. REPLACE AMPLIFIER ANTENNA ASSEMBLY

   
   

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

      OK
      Radio broadcasts can be received normally.

   
   

   OK

   NORMAL OPERATION

   NG

   REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here