Corvette CCM Reverse Engineering Anyone?

[spfautsch]

FOund the mode5 code in the bin, but there is not much that it can do. It seems the ccm enters some loop where you can upload custom code. It still doesn`t make sense since there is no execute visible in the loop.

What if it doesn't need to execute any code? The documentation for mode 5 reads as upload to ram. In these dumps a copy of the eeprom data is present at 0xB600. What if the code works solely on the copy in ram, and the eeprom compare / write procedure is triggered before sleep mode is entered, or by some other mechanism (key off, etc.) so as not to wear out the eeprom?

I have considered the fraud tangent and that does trouble me somewhat. State laws are different on the subject, but in Missouri the lines become somewhat blurry once the vehicle is more than 10 years old. At that point the prosecutor has to prove intent to defraud. So you get back to the same moral dilemna that exists where we ask do guns kill people or do people kill people.

Hoping to have a thorough look at things this weekend. I'm incredibly perturbed that the remanned CCM wasn't remanned. I'm almost certain nothing at all has been done with it because the security light never went out, telling me it's probably programmed for a different VATS pellet.