cojeepin

Does anybody know how to run a toggle to your electrical fan?

dschappell

I literally just did this. I pulled the connection and spilt the wires so I could put my own connectors on it. I connected two male plugs on it. Ran a wire from one side to the battery with a in line fuse and a second wire (negative terminal) to the cab to my switch and back to the negative terminal on the battery. That way if the switch fails, the most that happens is the fan runs. I can fix that problem. Don't want any fires!

sycoglitch

Theres good write ups on this if you search. 94xj did a hell of one. Im gonna do the double pole switch, where as one side it stays on, middle off, last position has the fan run normal. I would just run power to it because iirc it gets a signal straight from the PCM so if not wired right, you may burn out the computer.

XJwonders

x2. I used his write up on my crawler two years ago. No problem since. I'm gonna do it on my daily driver soon

SteveMongr

Depending on year, only need to tap the ground wire for fan trigger, located in wire loom in engine bay. Computer still has full control and function of fan when toggle is off. Often causes a CEL with OBDll however.

XJwonders

it causes cel for first few months then after that I didn't get any cels every time I use it

sycoglitch

Heard the CeL is hit or miss. And yea, apparently tr wire is red with pink stripe or blue with pink stripe. Gotta find my saved writeup cause im fixin to do this on a free weekend

cojeepin

I have an 01 does this apply?

Bustedback

Yes.

cojeepin

Sweet thanks