Hi my clock stopped working then the alarm that tells you you have left your lights on central locking repaired all the wires but I disconnected the wires to the drivers door lock I control locking the doors from the drivers door I lock drivers door with the key disconnected the alarm any help for loss of power to the clock spedo and rev counter doesn't switch of properly 

This sounds like a cacophony of wiring faults that have been caused by someone altering things or damage?

Suggest things are put back to "as built" and then see what works and what doesn't.

Then, based on fault codes, live data from switch activation and  attempt to activate the functions directly (all Forscan) maybe faults can be narrowed down.

Unless if course I'm missing the points 🤨