1995 Z28 OBD1---On the main screen of datamaster where it gives you 1's and 0's for TCC Brake switch, performance mode, park/ neutral , etc. I get a 1 on TCC without pressing the brake and a 0 when i do. Also I get a 1 on Park Neutral when in drive. Is this the correct reading for normal operation?

Also, with the trans modes, A, B, performance. Does a 1 mean its enabled or disabled?

THanks