Just an FYI for those of you who are searching this failure (not trying to hijack thread) but this being the newest thread about the issue.

I had this failure yesterday but it failed in the open position (not locked up) and all it took was clearing the codes to get rid of the light and also allow the brake to function as normal again. I don't know if this means that my actuator is failing but not totally gone or just some fluke but I wanted to put it out there to those who are searching for possible remedies to the situation.