what else could be responsible for the symptoms: abs light, brake light, and squishy brakes. so far, the brakes are still good, vacuum is good, power steering works fine, no air in brake lines. I checked the electrical connections to the abs valves and they are all good. i do have trailer brake controller, but never had any problems with it and it still works. I'm not too worried about this because the breaks still work great, but I would like to get it fixed so that I can tow again. another thing, if i pound on the brakes while stopped, the symptoms go away, but when i touch the brakes again, the symptoms come back. i'm just trying to save some money, but maybe i shouldn't be so cheap. has anyone else had this problem, what could it be?