I have the lisc. for 99 and 02 Trucks.
1. I read entire 99 stock VCM and saved.
2. I did an entire re write 02 to the 99.
3. I try to start (99) and it runs for 1-2 sec. and quits.
4. Pull up scanner DTC's = P1631 Theft Deterant Start Enable Not Correct, (not SES Enabled) 2. No MIL light.
5. I put the original 99 back in and starts right up.
I cannot get the 99 to accept 02 OS.
Now when I try to read the 99 with it's orig. stock tune,
I get to Validating Liscense and the Vin# changes to all y's, VL says failed(in Red) and under #6 Validating Integrity it says 99 Corvette????
Do I need to purchase the 1 bar SD?
Can I change the DTC to SES or change error mode?
PS I never lost power to the PC, The truck runs fine.
Chris