Manual Fan Switch
Thread Starter
Intermediate
Joined: Dec 2006
Posts: 26
Likes: 0
Manual Fan Switch
Hey Guys. Has anyone done or have information on wiring up a manual fa n switch? My buddy did this to his Trans-Am and he tied into the computer rather than running directly to the relays. I tried searching but haven't found out what wires to connect. If you have any info or links to share, please post. Thanks.
Dogface
Joined: Jul 2004
Posts: 25,974
Likes: 120
From: At the Beach, FL
St. Jude Donor '15, '17
Hey Guys. Has anyone done or have information on wiring up a manual fa n switch? My buddy did this to his Trans-Am and he tied into the computer rather than running directly to the relays. I tried searching but haven't found out what wires to connect. If you have any info or links to share, please post. Thanks.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
The PCM outputs two different ground or low signals to the relays in the engine compartment fuse box, to turn on the fans as required. If you can identify the wires for your car, you can easily wire it in. You'll need a formal schematic.
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
Race Director
Joined: Sep 2004
Posts: 17,786
Likes: 4
From: Redsox, Pats, Celts & Bruins !!! Redsox Nation !!!
St. Jude Donor '06-'07-'08-'09-'10-'11-'12
I have the diagrams, But it lists it by fuse #s. What are they? That trick above, you could easily run that through a switch to the inside of the car. Just switch the length of wire.
