My FPCM is bad and if I get a used one from the same make/model Hummer will it work without programming it?

 

it might still need vin number coding but they do sell ones that do not or come coded for you.

 

What is the F for? 2006s have 2006 only PCMs. 2007s have 2007 only PCM, 2008 - 2010 have the same PCMs and use a TCM to control the AT.

 

i beleive it is the Fuel Pump Control Module "FPCM".

 

Ah......... my bad. Not too common for H3/H3Ts to need one.

 

I was today days old when I learned that the H3 got a FPCM starting with the 2009 model year. Whadayaknow.

 

Well, after reading a couple posts about this it now has popped back into my memory that back when I was using HP Tuners on my 09 Alpha it does show that module when you get ready to load a tune, and you want to uncheck it because you are not going to make any changes and if you leave it in as a module to write, you have to buy another HP Tuner credit for nothing. I do not recall seeing that on earlier H3s, so it all starts to make sense... sort of.