NAVIGATION SYSTEM(for Sedan) Radio Broadcast cannot be Received or Poor Reception

PROCEDURE

1. CHECK RADIO AND DISPLAY 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 RADIO AND DISPLAY 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 RADIO AND DISPLAY RECEIVER ASSEMBLY

   1. 

      Preparation for check

      1. Disconnect the antenna connector from the radio and display receiver assembly.

   2. Check for noise

      1. Turn the ignition switch to ACC with the radio and display 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 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.

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here

   OK

4. CHECK WINDOW GLASS ANTENNA WIRE

   1. 

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

      Check for continuity in the window glass antenna wire.

      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.

      Tip:

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

      OK

      There is continuity in the window glass antenna wire.

   Result

   Proceed to
   OK
   NG

   NG

   REPAIR WINDOW GLASS ANTENNA WIRE

   Click here

   OK

5. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

   1. Disconnect the RA radio and display receiver assembly connector.

   2. 

      *a	Component without harness connected (Radio and Display 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	Ignition switch ACC Radio switch on and FM or AM selected	11 to 14 V

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here

   OK

6. REPLACE ANTENNA CORD SUB-ASSEMBLY (for Instrument Panel Side)

   1. Replace the antenna cord sub-assembly (for Instrument Panel Side) and check if radio broadcasts can be received normally.

      Click here

      OK

      Radio broadcasts can be received normally.

   Result

   Proceed to
   OK
   NG

   OK

   NORMAL OPERATION

   NG

7. REPLACE 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

   NORMAL OPERATION

   NG

   REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

   Click here