Help me understand how the Steering angle sensor and Psm Module affect ABS?

[John Carlsson]

I only use my Boxster S for racing and googled a lot how to exlude the PSM system. However it is really simple. There is an electrical relay under the front hood on the leftt side. Remove that and you PSM is de-activated but ABS still works. Down side is that you will have a warning on the dash board each time you start the car.