Radio Broadcast cannot be Received or Poor Reception

INSPECTION PROCEDURE

1 CHECK RADIO AND NAVIGATION ASSEMBLY

1. 1
   Check the radio's automatic station search function.
2. 2
   Check the radio's automatic station search function by activating it.

OK: The radio's automatic station search function works properly.

2 INSPECT RADIO AND NAVIGATION ASSEMBLY

1. 1
   Disconnect the radio and navigation assembly connector R15.
2. 2
   Measure the voltage according to the value(s) in the table below.

Standard voltage

3 CHECK OPTIONAL COMPONENTS

1. 1
   Check optional components (sun-shade film, telephone antenna, etc.).
2. 2
   Check if any optional components, such as sunshade film or telephone antenna that may decrease reception capacity, are installed.

OK: Optional components are installed.

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

4 CHECK RADIO AND NAVIGATION ASSEMBLY

1. 1
   Preparation for check
2. 2
   Remove the antenna plug from the radio and navigation assembly.
3. 3
   Check for noise
4. 4
   Turn the ignition switch to the ACC position with the radio and navigation assembly connector connected.
5. 5
   Turn the radio on and put into AM mode.
6. 6
   Place a screwdriver, thin wire, or other metal object on the radio receiver's antenna jack and check that noise can be heard from the speaker.

OK: Noise occurs

5 CHECK GLASS ANTENNA

1. Check for continuity of the antenna.

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

NOTICE: 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 voltage, wrap a piece of tin foil around the tip of the negative probe and press the foil against the wire with your finger, as shown in the illustration.

OK: There is continuity in the antenna.

6 REPLACE ANTENNA AMPLIFIER

1. Replace the antenna amplifier and check that it operates normally.

OK: The antenna amplifier operates normally

REPLACE RADIO AND NAVIGATION ASSEMBLY