Need some whelp with ABS code 30?

Hey All,
I took my XJ to the shop today to find out what's going on with my brakes. I have an intermittent ABS light and the pedal is really hard to push down, as if I don't have power brakes. They pulled the ABS codes and it was ABS 30 - Pump motor circuit not working properly. They told me it's the controller. Anyone know where this controller is and where I can get one? Every search I have done comes back with ZJ or WJ options.

Thanks

98 Limited AW4 242 D35