Suzuki CELERIO Series Owner's Manual page 220

Troubleshooting
When encountered a problem, check and follow the instructions as described below.
If the described suggestions do not solve the problem, it is recommended to take the unit to your authorized SUZUKI dealer.
Problem
Common
Unable to operate
Unable to turn on the power (no sound).
(No sound is produced)
Radio
Much noise
Unable to receive by auto tuning
CD
Sound skips or noise produced
Possible cause
The security function is on.
Fuse is blown.
It may not exactly tuned in to the station.
There may be no station emitting signals
powerful enough.
If AF is ON, the unit searches for RDS
stations only.
The disc is dirty.
The disc has a major scratch or is
warped.
OTHER CONTROLS AND EQUIPMENT
Possible solution
When "SECURITY" is displayed, enter
the ID.
When "HELP" is displayed, contact your
authorized SUZUKI dealer.
Contact your authorized SUZUKI dealer.
Tune it in exactly to the station.
Pick up a station by manual tuning.
Turn AF off.
Wipe the disc with a soft cloth.
Replace the disc with the one with no
scratch and also not warped.
5-70
84MM6-01E