I tried it and they were off, but now nothing will come on with the toggle. This crap is driving me crazy. . . any more ideas?

 

OK, one more idea. Red wire must be the center post and can provide power to whichever post its switched to.

Try this. Ground the red wire and connect either of the others to your fan harness. Still, do not connect 12V power.

 

I don't really understand what your saying...

Here is the set-up going to the toggle:

Blue wire = goes to the harness
Black wire = grounded under the steering column
Red wire = runs from the toggle to the fuse box ; gets power from there

Are you saying disconnect the red wire altogether? And just run the blue and black? If so, it's not working with my toggle (3 pin/30amp), do I need to get a 2 pin toggle?

Thanks for helping out!

 

What you are doing is connecting your blue wire to ground through the switch instead of directly to the frame (or whatever you ground it to). Your toggle switch now controls if the fans will come on low or not. This is a much better option than disconnecting your battery every time since you are essential doing the same thing only by using a switch instead. By connecting the green wire to the AC you are turning the fans on "high" whenever the AC comes on. Your red wire is not used.

You can use a 3 pin switch and only use 2 prongs, just the other switch direction wont do anything. Connect the grounded black wire to the middle prong and the blue wire to the top prong, now when you flip the switch down (oppisite direction of the blue wire) your fans should come on low. When the AC kicks on, your fans should turn on high. If you have the toggle off and the AC kicks on, I believe 1 fan will be on high and the other will be off.

Just as a side note, a relay only requires about 250ma (1/4 of an amp) to switch, so you dont need a switch rated at 30a, although it wont hurt.

 

Just cause im bored, but if you want to be fancy you can do this



Get a DPDT switch (tell them double pole double throw and they should know what you are talking about) from radioshack and connect it like i did in the diagram. When you flip the switch down you get the fans on low, when you flip it up they are on high, and in the middle they are off.

 

It worked! Both fans come on low now! Thanks guys!