54-128
SYSTEM
Troubleshooting
Broadcasts can be heard but both AM and FM have a lot
of noise.
Noise occurs when the engine is
ped.
Noise occurs when the engine is
running.
Do the following measures eliminate the
noise?
l
Tune to a strong station.
l
Extend the antenna completely.
l
Adjust the sound quality to suppress
high tones.
inspect the vehicle’s noise suppressor
fer to
No
the radio chassis ground mounted
securely?
Securely tighten the nuts for the chassis ground.
Yes
Is the antenna plug properly connected to
the radio?
No
Correctly attach the antenna.
Is the antenna body in
Clean the feeder wire and ground wire
motor antenna, refer to D-
mounting area.
Mount the antenna securely.
Yes
No
If there is more noise than other radios, consult a
service center.
TSB Revision