Offroad-Express

Hi im just trying to work out what the wires going to the drivers side of the gearbox are? im thinking speedo sensor and 4wd but am not to sure.
cheers

what year terrano is it?

On the manuel boxes, the two switches that look the same control the 4wd light. Ones normally open, the other normally closed and the're wired in series. They can be an arse to remove without damaging if over tightened, and have ball bearings in behind them (one has 1 & the other 3 I think)