The digital clock in my 1988 F75 doesn't keep time while the truck is turned off. At first I thought this was the clock fault but I got a replacement and the behaviour is exactly the same. Every time I start the engine the watch switches on at 1:00...
I have checked the technical manual to try and find an answer to my problem, but my electrical knowledge isn't too great. Maybe you can help me?
Here's the page manual regarding the digital clock: