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42
Troubleshooting
Before going through the checklist please make all the con-
nections first. If you still have questions after going through
the checklist, please consult your local customer service
representative.
Fault Symptoms
Cause
No function.
The ignition is
switched off.
One or more fuses
have blown.
Device cannot be
Incorrect con-
switched on or off
nection (each car
via the ignition.
manufacturer wires
the ISO connection
in the vehicle differ-
ently).
The device does
The microcom-
not work correctly.
puter has been
interfered with by
electromagnetic
fields.
No radio recep-
The antenna cable
tion.
is not connected.
Poor radio recep-
It is possible that
tion.
your vehicle has
a special antenna
(phantom-pow-
ered antenna.)
Solution
Turn the ignition
key to "ON" or
"ACC".
Replace the fuse
by another 5 A /1 A
fuse.
Please contact your
car workshop or
a vehicle special-
ist for connection
adapters may
specifically for your
model.
Switch the device
off and on again.
Insert the antenna
cable firmly into
the antenna socket
of the device.
Please contact your
car workshop or a
vehicle specialist.
(For other manu-
facturers there are
specific phantom
power supply
adapters and
voltage adapters
available.)
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