I have a 93 Corvette and it has ABS and ASR (traction control). I am pretty sure they work in conjunction with each other. In Tuner CAt you can lessen the timing reduction, but there doesnt seem to be any way to adjust the ABS. You can get codes from ABS, so there is someway of the PC or Code reader being able to talk to the computer that monitors/controls the ABS.
Any ideas?

 

The ABS and TCS are handled in a separate module then the ECM. The ABS\TCS module sends a signal to the ECM to retard timing when it detects a loss of traction and that is why you have access to those parameters in TunerCAT but the ABS does not interface with the ECM. Thus if you want to change any parameters on the ABS you would have to hack the Bosch ABS\TCS module.