Old/Bad PCM.... Does anyone fix these?

[c good]

My old PCM caused trouble for years. I finally figured it was the problem and replaced it.

Envoy has been running great ever since. I still have the old PCM sitting around. I'm curious if anyone fixes these things?

If not, I might try unpotting everything and see if it's anything obvious like a fried capacitor, etc.

If it's not repairable, I'm tempted to use it for target practice as it left me stranded on the side of numerous times and cost me hundreds of dollars in wasted diagnostic fees. Neither the GMC or Chevy dealership techs could figure it out.

It wasn't until I just said "F-it" and bought a good used one, had it VIN matched, installed, and pass code reset that it finally was fixed.

 

[Sqrly]

First hit in a search "https://www.solopcms.com/auto-computers/gmc-ecm-ecu-pcm/"

You send them yours +$250 and they send back a reman programed to match what you sent them.

 

[c good]

First hit in a search "https://www.solopcms.com/auto-computers/gmc-ecm-ecu-pcm/"

You send them yours +$250 and they send back a reman programed to match what you sent them.

Already did that without having to send in a core. Just want to know if anyone takes them in to be be repaired. Curious as to what failed on mine.

 

[spfautsch]

I've been similarly struggling with a T42 TCM. It hasn't left me "stranded" per se but has cost me several hundred dollars in parts cannon reloads as well as my personal time attempting to troubleshoot.

My $0.02 would be placing a few well located rounds of .308 Winchester through it. If it's internals are in any way similar to those of the T42 module, there's no feasible repair possible. Unlike most of it's predecessors, it was designed to be disposable.