1-remote plip not working new batteries inserted, no light flashing in car.
2-front electric windows not working, rears are ok.
3-none of interior lights work, all bulbs ok-boot light works.
4-rev counter needle stuck
5-central locking locks then unlocks on key-remote plip not working.
I have tested for power to windows and interior lights but no power-could this be an earthing issue or something more complex? there was water in passenger footwell, all wiring appears good no splits/freys etc. Car starts and drives well. many thanks