Quote Originally Posted by tayto View Post
you need to run a separate brake switch that has NC contacts. if not your brake switch needs to run a relay and run your TCC circuit through the NC contacts. Those cars came with TH350C or TH200C so you should be able to use factory switch and wiring to make your life easier

EDIT: been a while since i've looked at a factory brake switch but i believe the switch has NO contacts for the brake lights and NC contact for lockup all in the same switch...
The switch I have been using is factory to the Malibu. It’s just that the switch is bad. I still have the switch from the donor 94 Z28. I plan to put that in.