I'm getting an intermittent Stablitrack/ABS light on the truck. Some days it's not there, some days it is. I understand this could be anything to do with the braking system including the steering wheel positioner and wheel speed sensors. I noticed yesterday when it came on twice that it came on when I applied the brakes. I happen to be near the auto parts store so I pulled in and read the code and got a C0110-04, Pump Motor Circuit - Open.

What am I chasing here? My understanding is that this could be a couple of things from Brake Pressure Modulator Valve or the Electronic Brake Control Module. Anything else I need to be looking at? I did clean the chassis/ground but that didn't make any difference. I also read that low brake fluid could cause this...I wasn't too low but I topped it off any way. The light came back on this morning on the way to the gym but stayed off the entire time on the way home.