I need to re-wire my TIM water temp gauge. It has 3 terminals on the back labelled - "S", "G" and "I" or "-" depending which way you look at it! Any ideas which is which please? Clearly one is +ve feed, one is earth, and the other is the sender.
Thanks
Dickie

Perhaps:

I = Ignition fed (live)
G = Ground
S = Sender



try it with a small 9v battery first - should move the gauge enough to test - without killing it..

[Edited on 19/4/06 by muzchap]