The dealer couldn't help. They also didn't have a Tech 1 or Tech 2, but something newer. The tech couldn't find any changeable options in the CCM, but was able to read the VIN and it matches. I...

This meets my expectations. I have an appointment tomorrow at the local Chevy dealer and they have a Tech 2. Hopefully they also have the correct adapter for the 16-pin OBD 1.

I'd read that thread before. All I need to change is the engine type so that CCM code 81 goes away and takes the "SYS" message with it. There is nothing else wrong so the CCM does not need tobe...

Here's the situation...

The CCM was recently replaced, but before I bought the car the end of March. The dash displays the "SYS" message indicating a current-DTC malfunction. In CCM Diagnostic...

My 1994 Corvette needs CCM reprogramming. Does anyone have a Tech 1A for sale or rent? EBay only has adapters at the moment.

Thanks,
Josh