AUDIO AND VISUAL SYSTEM(w/ Multi-display) Radio Broadcast cannot be Received or Poor Reception

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   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.

         OK
         Automatic station search function stops on a station

   
   
   • OK

     USE SIMULATION METHOD TO CHECK (Click 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.

      Note:

      Do not remove optional components without permission of the customer.

      OK
      Optional components are installed.

   
   
   • OKClick here
   • NG

     REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)

3. Click here

   CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

   
   
   1. 

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

   2. Turn the engine switch on (ACC) with the multi-media module 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 multi-media module receiver assembly antenna jack and check that noise can be heard from the speakers.

      OK
      Noise can be heard from the speaker.

   
   
   • OKClick here
   • NG

     REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)

4. Click here

   CHECK QUARTER WINDOW ASSEMBLY (WINDOW GLASS ANTENNA WIRE)

   
   

   1. Inspect the quarter window glass (window glass antenna wire) (Click here).

   
   
   • OKClick here
   • NG

     REPAIR WINDOW GLASS ANTENNA WIRE (Click here)

5. Click here

   INSPECT MULTI-MEDIA MODULE RECEIVER ASSEMBLY

   
   
   1. 

      Disconnect the multi-media module receiver assembly connector.

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

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

      Table 1. Text in Illustration

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

   
   
   • OKClick here
   • NG

     REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)

6. Click here

   CHECK ANTENNA CORD SUB-ASSEMBLY

   
   
   1. 

      Remove the antenna connector from the multi-media module 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) - 4 Always Below 1 Ω RA-1 (SUB) - 3 Always Below 1 Ω RA-5 (ANT+) - 2 Always Below 1 Ω RA-3 (MAIN) or 4 - Body ground Always 10 kΩ or higher RA-1 (SUB) or 3 - Body ground Always 10 kΩ or higher RA-5 (ANT+) or 2 - Body ground Always 10 kΩ or higher

      Table 2. Text in Illustration

      *a	Front view of wire harness connector (to Multi-media Module Receiver Assembly)
      *b	Front view of wire harness connector (to No. 2 Antenna Cord Sub-assembly)

   
   
   • OKClick here
   • NG

     REPLACE ANTENNA CORD SUB-ASSEMBLY (Click 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 4 - 4 Always Below 1 Ω 3 - 3 Always Below 1 Ω 2 - 2 Always Below 1 Ω 4 or 4 - Body ground Always 10 kΩ or higher 3 or 3 - Body ground Always 10 kΩ or higher 2 or 2 - Body ground Always 10 kΩ or higher

      Table 3. 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
   • NG

     REPLACE NO. 2 ANTENNA CORD SUB-ASSEMBLY (Click here)

8. Click here

   CHECK NO. 1 AMPLIFIER ANTENNA ASSEMBLY

   
   

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

      OK
      Radio broadcasts can be received.

   
   
   • OK

     END (NO. 1 AMPLIFIER ANTENNA ASSEMBLY IS DEFECTIVE)

   • NG

     REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY (Click here)