NJFBOA - Home of New Jersey's Camaros and Firebirds - View Single Post

IROCdan330 · 06-28-2008, 08:22 PM

There are 2 fan relays. one is on the side of the rad support...one is up under where the passenger headlight is...

one fan runs off of the ECM telling it to...the other runs off the swtich in the passenger head.

been a little bit since i last messed with it, but i believe if you ground each of the relays to chassis ground, then put a switch in line...they should both work with key on power. the one that runs off the pass. head switch definitely is like that, and im almost positive the ECM only ground the primary fan relay, so it should also work like that.

06-28-2008, 08:22 PM	#35
IROCdan330 12 Second Club Join Date: Sep 2004 Location: Vineland Posts: 928 iTrader: (0)	There are 2 fan relays. one is on the side of the rad support...one is up under where the passenger headlight is... one fan runs off of the ECM telling it to...the other runs off the swtich in the passenger head. been a little bit since i last messed with it, but i believe if you ground each of the relays to chassis ground, then put a switch in line...they should both work with key on power. the one that runs off the pass. head switch definitely is like that, and im almost positive the ECM only ground the primary fan relay, so it should also work like that. __________________ 87 iroc with the usual go fast stuff heavier than your half ton.