Section 12—Troubleshooting
12.1
12. TROUBLESHOOTING
If an operating difficulty is encountered, check the
following list of possible problems and solutions before
returning the unit to the factory or local Service Center.
Problem Possible
Solution
No Power Indication
Check for proper voltage at
cigarette plug. Reseat cigarette
plug in the socket.
Check fuses if using vehicle’s
cigarette socket.
Unit will not complete
Verify the power plug is
test cycle or
secure. If the ERR message
shows ERR
indicator is lit, power the unit off,
then back on. If the problem
persists, remove unit from service
and record the error code.
No target speed reading Verify that unit is set for
during tuning fork test
maximum range.
Verify unit is not in HOLD
Unsquelch audio. Listen for
Doppler tone.
Lightly strike tuning fork to avoid
harmonics.
No patrol speed during Verify that the unit is not in
tuning fork test
HOLD.
If speedometer input is used,
press TEST switch before
beginning tuning fork test.