Radio Broadcast cannot be Received or Poor Reception

AUDIO / VISUAL: AUDIO AND VISUAL SYSTEM: Radio Broadcast cannot be Received or Poor Reception

Radio Broadcast cannot be Received or Poor Reception

INSPECTION PROCEDURE

PROCEDURE

1. CHECK RADIO RECEIVER
(a) Check the radio's automatic station search function.
(1) Move the vehicle to a location where radio wave reception is possible.
(2) Check the radio's automatic station search function by activating it.
OK:
The radio's automatic station search function works properly.
OK -- REPLACE RADIO RECEIVER
NG -- Continue to next step.

2. CHECK RADIO RECEIVER




(a) Disconnect the R3*1 or R6*2 receiver connector.
(b) Measure the voltage of the receiver.
Standard voltage:





HINT:
- *1: for 6 speaker system
- *2: for 9 speaker system

NG -- REPLACE RADIO RECEIVER
OK -- Continue to next step.

3. CHECK OPTIONAL COMPONENTS
(a) Check optional components (sunshade film, telephone antenna, etc.).
(1) Check if any optional components, such as sunshade film or telephone antenna, that may decrease reception capacity are installed.
OK:
Optional components are installed.
NOTE: Do not remove any optional components installed by the customer without consent.

OK -- REMOVE OPTIONAL COMPONENTS AND CHECK AGAIN (SEE NOTICE ABOVE)
NG -- Continue to next step.

4. CHECK RADIO RECEIVER




(a) Preparation for check
(1) Remove the antenna plug from the radio receiver.
(b) Check for noise
(1) Turn the power switch ON (ACC) with the radio receiver connector connected.
(2) Turn the radio on and change to AM mode.
(3) 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.
NG -- REPLACE RADIO RECEIVER
OK -- Continue to next step.

5. CHECK ANTENNA CORD
(a) Remove the antenna plug of the radio receiver and antenna.
(b) Measure the resistance between the antenna cord's inner conductor and radio receiver to check for an open circuit in the antenna cord.
Standard resistance:
Below 1 Ohms
(c) Measure the resistance between the antenna cord's inner conductor and body ground to check for a short circuit in the antenna cord.
Standard resistance:
10 kOhms or higher
NG -- REPLACE ANTENNA CORD
OK -- Continue to next step.

6. REPLACE AMPLIFIER ANTENNA
(a) Replace the amplifier antenna and check if radio broadcasts can be received normally.
OK:
Radio broadcasts can be received.
OK -- END
NG -- REPLACE RADIO RECEIVER