38 Troubleshooting
Removing the radio from the vehicle
1 Switch off the radio.
2 Unscrew the four thumb screws that secure the radio
to the U-bracket .
3 Carefully lift the radio clear of the U-bracket.
4 Disconnect the antenna and power cable from
the rear of the radio.
Describing the radio’s audible tones
The following table summarizes the radio’s audible tones.
c
d
a
a
b
a
b
c
d
Action and tone Meaning
two short
beeps
radio turned on: the radio is powered on
and ready to use
one short beep after
the power-up beeps
radio locked: you need to enter your
personal identity number (PIN) before
you can use the radio
one long, low-
pitched beep
radio PIN entry unsuccessful: you need
to re-enter your PIN
two short beeps radio PIN entry successful: the radio is
now ready to use
one short beep
function activated: a function key has been
pressed and that function has been initiated