clock and trip odometer reseting when ignition turned off

[DekF]

Dazza, it's the 6 pin connector that would cause the problem, when you opened it you probably cleared the short circuit, maybe some water off the jetwash. The corrosion on the pins in the 13 way could cause a high resistance between contacts but unlikely to cause a short circuit. Contact cleaner followed by dielectric grease is the best preventative method.