GarrettT/A

I just got a new PCM from GM and I am going to install it myself. What is the correct procedure to do this? Im a little nervous about messin with stuff like this.
Thanks

horist

remove old PCM
Install new PCM




not sure of an actual procedure.... remove the plastic caps from your PCM..... unscrew the 2 7mm bolts... disconnect the wiring harness connectors.... pull your PCM out... put your new PCM in... screw the 7mm bolts back in , replace plastic caps.... you're done..

It's not very difficult....

GarrettT/A

ha, thanks

wrexed03

Might be worth disconnecting the battery first before you start unpluging and pluging cables etc.

horist

^^^ good point.... I've never done it, but to be perfectly safe , discon the ground on the battery

wait4me

iTrader: (10)

If it is a new one from gm, they are not ready to go. They need flashed with a tech 2 or a programmer, to put in your vehicle specs ect..... They come empty except for an operating system so you can put the program in.

LoWeLL216

iTrader: (1)

There's also a plastic box around the PCM that you might need to unbolt just to get a little more play in it to remove the PCM. I know mines a bitch to remove if I don't. The whole thing's really easy once you look at it just take your time and don't muscle it around.