41 - Right Front ABS isolation valve
42 - Right Front ABS pulse-width modulation valve
45 - Left front ABS isolation valve
46 - Left front ABS pulse-width modulation valve
51 - Rear ABS isolation valve
52 - Rear ABS pulse-width modulation valve
65 - Pump motor relay
67 - Pump motor
Now, the brakes work fine as they are, and I'm not terribly worried about getting the ABS working, but it would be nice to make the light go off. I don't see any loose connections, but there might be one hiding somewhere. I don't know about the state of the wiring, since it seems like the previous owner loved to play electrician, and nearly everything is wrapped with electrical tape from where he tried to install a car alarm, and other various electrical items.
One other item: whenever I push down on the brake pedal, I get a sound like a spring getting sprung loose - just an annoyance - anyone know where it might be coming from