Corvette CCM Reverse Engineering Anyone?

[spfautsch]

The three solder pads on the bottom-left appear curious to me.

Those are all tied together - there's another trace between the right pads on the back side. Holding a light behind the unpainted area around the pads it seems like there might be a trace leaving the right pad in a middle layer, but it dead ends on the visible layers. It reads 40mohm to ground.

This is just the normal self-diagnostic pin on the ALDL connector (on a 94-96, this is pin 12, which you then jumper to pin 4, ground).

I figured that's what it was but haven't been able to look at all the schematics thus far.

Why would you care about the vin that is programmed.

I'm interested in knowing if the remanned unit has had the eeprom erased before I connect it to the car. Since I know my vin and how many miles are on mine I'm hoping to be able to extrapolate their location in the dump. Though I'm somewhat worried they used some sort of hash algo on the odometer reading. Edit: and it occurred to me it's probably not stored in units of miles but rather some proprietary GM unit.

Edit: Still no luck with serial data. May have to put it back in the car to troubleshoot.