Fault messages and fault diagnosis
After connection of the supply voltage the system performs a self-test. This test
checks the various internal system functions.
Should any fault messages be displayed, please refer to table below:
Message
Power failure
GPS failure
Compass failure
EEPROM failure
Cause
The system is designed for operation with a 12V onboard power supply
only.
It is also possible that a battery may be defective, or there may be a
wiring problem.
The GPS receiver has not yet been recognised. Please wait a few se-
conds. If the message does not vanish then there is an electric fault in
the system.
Either there is an extremely powerful magnetic fi eld that is causing
interference (e.g. from large, unshielded speakers), or the system has
detected an electric fault on the compass. This may sometimes be reme-
died by a calibration.
This indicates an internal fault – the system needs to be returned to our
Customer Service department.
42
E