I'm about to wire up the 3 relay hi/low with 05+ efans and 2 temp. switches. (Not using the factory harness/ecu). I only found one forum with this info, but your video helped with a better visual explanation. Thanks for sharing

Best video I could find, seems everyone is fine with not having ac after this mod. Thanks for the help hope this video is still up when I need it again

Nice explanation, but you can eliminate the middleman relay by taping from pin 86 on the ac relay (which gives control ground from bcm )to your pin 86 of the fan relay. 😉

@TheMonstervirus

10 ай бұрын

Can you explain it in more detail please, im making a relay this way to because black bear performance suggest to make it the same way the OP just explained. But it sounds alot better the way your saying it, please clarify.

@JeremyWilson-vu2pw

10 ай бұрын

@@TheMonstervirus Take pin 86 from AC relay, wire straight to pin 86 on fan relay. Ac relay should be in big fuse box marked AC relay and fan relay should be in small fan fuse box marked fan relay. One wore just go from pin 86 on one to pin 86 on the other. Does that help?

@JeremyWilson-vu2pw

10 ай бұрын

I tried this a/c pin 86 to pin 86 or fan relay method but it doesn’t work completely correctly.

@JeremyWilson-vu2pw

10 ай бұрын

So I went with the original from the video and it worked

@IndiansAuto

2 ай бұрын

If you do this the AC compressor will turn on whenever the Fans turn on. Not a good idea

thanks my ls swap obs chevy has that setup been trying to get a/c hooked up for a week now all I caught was headaches thanks

This way works can even test if first using a relay already in the truck like I took out my horn relay, and wired it like he wired this one, tested and has everything working currently now all I have to do is get a replacement horn relay.