Fan switch
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
locate the main fan relay,rear of fender driver side.
this is the pin out of fan relay
[IMG]
[/IMG]
As you can see, ground terminal B DARK GREEN/WHITE and relay energizes and closes D-A
Put a switch to ground to terminal B and you can start main fan when you want
this is the pin out of fan relay
[IMG]
[/IMG]As you can see, ground terminal B DARK GREEN/WHITE and relay energizes and closes D-A
Put a switch to ground to terminal B and you can start main fan when you want
Last edited by tunedport85inject; May 11, 2013 at 02:16 PM.
Team Owner
Joined: Mar 2012
Posts: 27,118
Likes: 135
From: Montgomery, Alabama
2017 C6 of Year Finalist
Here is the wiring diagram for the 92 model.
When I bought mine the previous owner had cut the blue/wht wire from the fan relay to the ECM and directly grounded it so that the fan came on as soon as the key was turned on. I would not recommend that approach as it keeps the temp too low.
Cut the blue/wht wire and install the switch between the wire from the fan relay and to a ground point. Tape off the end of the blue/wht wire that goes to the ECM.
When I bought mine the previous owner had cut the blue/wht wire from the fan relay to the ECM and directly grounded it so that the fan came on as soon as the key was turned on. I would not recommend that approach as it keeps the temp too low.
Cut the blue/wht wire and install the switch between the wire from the fan relay and to a ground point. Tape off the end of the blue/wht wire that goes to the ECM.
Last edited by Old Ben; May 11, 2013 at 07:01 PM.
Drifting
Joined: Aug 2010
Posts: 1,704
Likes: 8
Here is the wiring diagram for the 92 model.
When I bought mine the previous owner had cut the blue/wht wire from the fan relay to the ECM and directly grounded it so that the fan came on as soon as the key was turned on. I would not recommend that approach as it keeps the temp too low.
Cut the blue/wht wire and install the switch between the wire from the fan relay and to a ground point. Tape off the end of the blue/wht wire that goes to the ECM.
When I bought mine the previous owner had cut the blue/wht wire from the fan relay to the ECM and directly grounded it so that the fan came on as soon as the key was turned on. I would not recommend that approach as it keeps the temp too low.
Cut the blue/wht wire and install the switch between the wire from the fan relay and to a ground point. Tape off the end of the blue/wht wire that goes to the ECM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski