Fishroe 261 #1 Posted December 16, 2013 I'm rewiring, just about got all wires cut to length with connectors on each end. I'm not wiring circuit board wires in at this time, leaving them out of the equation. I thought i had everything marked but i didn't. On the oil switch relay there are 3 terminals marked H B S I'm assuming the S goes to the solenoid. H is either light blue wire or dark blue wire according to wiring diagram. What does the H and B and S stand for. Its a 1986 31-14k801 My other question is if i leave the parking brake switch out and not run any wires to it will that work. One of you fellows had said all that switch does is make the light come on anyway. Thank You very much. Mike Share this post Link to post Share on other sites