Corvette CCM Reverse Engineering Anyone?

[spfautsch]

speaking of odometers, i see you managed to wipe it, but did you actually decipher it? if not, i'd like to help with that too, give me what you've found so far ? i enjoy code breaking this old stuff

What I've found is pretty much contained here. PM me if you want a more intelligent explanation, sometimes I omit very important details when I'm excited from cracking 30 year old engineering.

my main concern is scumbags rolling odos back

Edit: Me also, but keep in mind you have to take 1/3 of the interior apart to remove this module. It's slightly easier than pulling the engine and just a bit more difficult than replacing all four wheel bearing hubs in an afternoon. (end edit)

I have no idea where this could go. If you look on ebay the ccms that are there all have the mileage stated as if it's some measure of value. Personally I would like to keep mine correct to wear as a badge of courage. But who knows if the run-of-the-mill C4s will ever come to be coveted by car collectors. Plastic and unreliable electronics considered.

I'm posting this for those who understand the protocol. Please don't post a public dissertation about how I accomplished it if you figure it out.

TX+F15605B4
RX+F1570500B3
TX+F15A040020002071
RX+F15604B5
TX+F15605B4
RX+F15705AA09

Looks like I will be putting mine back together in the next few days once I run some "free" miles up on the salvage ccm. :-D

[NomakeWan]

I'm posting this for those who understand the protocol. Please don't post a public dissertation about how I accomplished it if you figure it out.

TX+F15605B4
RX+F1570500B3
TX+F15A040020002071
RX+F15604B5
TX+F15605B4
RX+F15705AA09

That is insanely cheeky, I like it.