Quote Originally Posted by Hotsauce View Post
The black part is a pack of solenoids, wound coils of wire the act on the ABS pistons. The failure is one of the coils burns out or a wire breaks. You can determine this with a DVM. I've never opened the coils themselves, it may be possible to rewind them.

John C.
but where's these "chambers" he's talking about? Are they on the face of black part, only visible once it's separated from the silver part?

THANK YOU ERIC, SNAGGED THIS PIC FROM YOUR GALLERY: