i don't know much about the ccm, but based on how GM did things in those days, i don't think that's what's going on.
it does make some kind of sense that they'd design the unit to prevent tampering with the odometer after x miles had been travelled, it's possible there would be a workaround for that, though.Mind my asking where you uncovered this tidbit? My assumption was that the eeprom would have to be erased directly with a jtag type device. This also gives me something to look for on the remanned unit.
I'll get some high-res pics up shortly.
we do have a memory dump of the CCM but it might be faster just to see what the TECH tool is doing.
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