Ours did exactly the same thing.
We didn't do anything about it as they were quite expensive to rectify at the time.
If the display Is working but garbled I'd say may be the screen PCB is messed up. So try changing the screen.
If it was dead with no beeps I would say the trip computer has failed, and that's a bit more involved.
Hope it helps
Posted Jun 25, 2014 (11 years ago)
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