ECM/PCM Fan Patch Programming

Description

If you purchased a fan kit from us the patch is FREE (you cover shipping) and you do NOT need to purchase this.

PLEASE READ: UNLESS YOU SPECIFY OTHERWISE, WE ARE APPLYING OUR DEFAULT FAN PATCH, WHICH WE USE FOR OUR OWN FAN KITS. YOUR FAN KIT MAY OR MAY NOT BE CONTROLLED THE SAME WAY. IT IS YOUR RESPONSIBILITY TO SUPPLY THE FAN PATCH IN HP TUNERS FORMAT IF YOUR MANUFACTURER USES SOMETHING DIFFERENT. You can preview/compare our fan patches here – link.

Fan patches are performed with HP tuners. You send in your ECM, we will patch it and ship it back. We do not lock the ECM, or modify any other tables besides fans. If you reflash the vehicle afterwards with a handheld/etc you risk overwriting the patch.

Vehicles supported include;

• 1999-2013 4.8, 5.3, 6.0, 6.2L Full Size Truck & SUV
• 2003-2009 4.2, 5.3 & 6.0L GMT 360 (Trailblazer, Trailblazer SS, Envoy, Saab, Rainier, etc )
• 2008-2012 5.3L GMT 355 (Colorado, Canyon, H3)
• GMPP Performance ECMs (Hot Rod Swaps) these require licensing costs of $99

Some applications (i.e. full size truck) control the fans through the ECM, and some only disable warning light for stock fan removal (i.e. 2004 4.2 Trailblazer). It is up to you and your fan manufacturer to know and understand the difference and whether or not your vehicle supports electric fans. 

How this works –

1. Check out on this page for the fan patch & return shipping
2. Ship your ECM to us using the courier of your choice. You are responsible for the cost of shipping your ECM to us.
3. We receive your ECM and usually process in 24 hours
4. We ship the ECM back to you