I don't know. However, once I had my brake system and ABS module "professionally" bled and they couldn't get a firm pedal. I didn't think much of it until I activated the ABS at the racetrack. The next corner I tried to brake and pedal went to the floor. I drove 100 miles with almost no brakes (carefully) before arriving home. I don't think the module cycled. To get the air out of the ABS module I had to activate it repeatedly (concrete floor) and bleed the system afterwards. It took several sessions to finally get all the air out and a firm pedal.

Les