Navigation System Radio Broadcast Cannot Be Received Or Poor Reception

INSPECTION PROCEDURE

CHECK NAVIGATION RECEIVER ASSEMBLY

CHECK OPTIONAL COMPONENTS

CHECK NAVIGATION RECEIVER ASSEMBLY

INSPECTION PROCEDURE

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

1. Check optional components (sun-shade film, telephone antenna, etc.).
   

   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 installed	A
      Optional components are not installed	B

      NOTICE:

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

1. Preparation for check
   

   1. Remove the antenna plug from the navigation receiver assembly.
      

2. Check for noise
   

   1. Turn the ignition switch to ACC with the navigation 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 navigation receiver assembly antenna jack and check that noise can be heard from the speaker.
      

      OK:

      Noise occurs.