Now available – simple manual fan control for your vehicle’s factory electric fans! Includes circuit to prevent check engine lights and retains normal fan operation.  This kit will always allow the computer to override the switch position ensuring that the vehicle will not run over temp. For example, if the manual fan switch is set to low but the vehicle is hot and high fans are required; the computer can override the fan switch and run the fans on high.  Perfect for going to the track or otherwise operating the fans without the vehicle running to bleed off excessive heat. Attractive rocker switch offers both LOW and HIGH operation of fans. Installation is a breeze, simply splice inline to your PCM (instructions included), attach ring terminal to a ground, and run switch to be mounted inside of the vehicle! Don’t see your vehicle listed? Email us at and we may be able to help! NOTE: Fan codes P0480, p0481, and p0483 need to be disabled in your tune, and set to NO ERROR REPORTING. We will do this for free if you send in your ECM.

Supported Models:

1997-2004 Corvette 1998-2002 Camaro/Firebird V8
2003-2013 Silverado Full Size SUV V8 2004-2014 CTS-V
2004-2006 Pontiac GTO 2008-2009 G8 GT/GXP
2010+ Camaro V8 (includes ZL1)



Additional information

Weight 1 lbs

2 reviews for PCM of NC Universal Manual Fan Switch

  1. Joseph Williams

    First night so far so good. 15 degrees cooler all around.

  2. Tom Galanius

    It works on my G8, but if I use it too often, I will get a CEL code. Not a problem to clear the code for me so its not a big deal. It is nice to be able to run the fans on high between autoX or drag runs. Sure, there are other ways of doing it via laptop/HPtuners, etc, but its nice to have a switch on the dash. The fans will only run with the key/ignition on. I had hoped they would run anytime, but thats ok

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