I want to wire in a switch to manually override my Efans. Can anyone shed some light on it for me and explain exactly what i need to do? A while back Justin from BBP explained it to me. Its been a long while and all of that info went out the door. Wiring is not my thing and im not afraid to ask for help lol. Its an 05 GMC sierra with factory dual fan set up. thanks in advance

 

Lol i wanna know as well, I know someone knows how to put it into English

 

Are you wanting to turn it off or turn it on?

 

go to radioshack and get a DPDT switch. There are 2 colums of 3 rows of connectors on the back. Assuming you have the 2 wire harness, extend the blue and green wires to the switch and wire it thusly:

[green] [blue]
[ground] [ground]
[blue] [empty]

flipping it up will put it on manual low, middle will be pcm control only, down will be manual high.

 

Should I run a fuse inline?

 

Nah, the current in the wires is extremely small.

 

Awesome! I'm going to stop at the auto part store on the way home and try to tackle it. I appreciate the help man. I'll let you know how it turns out

 

I have a diagram I'll dig up for you...

 

Here you go!

 

I laugh every time I see that