I have 1980 CU engined, T25 Viking camper, and doing a little pre season work have noticed on the lower part of the dashboard to the right of the steering column, the broken remains of a small lever switch, and adjacent to that a small warning light which I believe was orange (lense has dropped out). I have suck my head under the dash and can see that the switch has two blue wires going to it, one from the fuse board, but not sure where the other goes to. The light wires seem to go to what looks like a relay (orange).
Any ideas what they may be, we have been using the van for a couple of years, and not missed whatever marvellous function they perform.

Thanks Keith