Thanks, I used the LS tune I'm using for the 73 C10.

Well, I saved this one. I installed the LS tune I'm using in the 73 C10. I'll be installing it in the 73 to make sure everything works.176511764917650

I bought another 411 PCM, it didn't have the service type stickers on it. I was able to read the PCM, got the OS number 12216125 and Hardware number 9386530. I saved the file, and now I'm unable to...

Thanks for the picture and info.

I now have an unbricked and unlocked PCM. I turned everything on, used PCM Hammer, I put electrical tape around the pin I needed to use to make sure I didn't touch another pin, took a piece of wire...

These are pictures of an 00-02 PCM and a 03-up PCM. A slight difference where the arrow points to, but would most likely be the same point to ground.

The left photo is the 00-02 The right photo is...

I have a 2001 0411 PCM from a 2500HD. It has been programmed at one time and has been locked and have been unable to read it, write to it, etc. PCM Hammer shows that it cannot unlock because it needs...