tach, glow and seat belt ghosts
 

My tach, seat belt light and glow plug light have started being controlled by a ghost. First was the SBL and tach- now the glow plug has joined the fun. Anyone had the same thing- hints for ghost busting?
Everything else operates as designed and car runs great. This is the '84 TD.

On my CD, sometimes when I hit a bump, the seat belt light will come on, then go out.

Wow- only one response. No ghosts in the am- only after that car is warm and at the end of the day. Anyone have the same issues ever?

I would start by checking fuses. They tend to corrode giving poor connections.