XK 8 wiring problem?

Hi, I live in New Zealand and have just purchased a1997 XK8,when I turn the key off my clock stops and trip computer doesn’t hold it’s memory, only the fuel distance left remains. Any help would be appreciated,Thanks in advance.

Kia Ora,
Oh good, another new problem.

The tried and true first step is to check the battery. All the electronics in these cars will go strange before the battery is too week to crank the engine properly.

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Hi Grahame, The car has a brand new battery fitted about 2 months ago and the problem was there previous to it being replaced.Cheers John.

The next thing is to look for ground problems.

The Major Instrument pack has two B+ supplies. One a standing supply and the the other is ignition switched. It may be you are missing the standing supply. The supply appears to be looped through the Major Instrument pack to the Minor Instruments.
The standing supply comes via Fuse 18 in the Driver’s Side Fusebox. I’d start there.

Hi Eric I will start there. Cheers John.

Grahame I will check out the earths.Many Thanks John.