Gen3 ABS Control Unit ?

Does anybody know where the ABS Control Unit resides on a '94 GSR? This is not for my car, but a friend's. I've got the Helm shop manual for my gen2 and am hoping the trouble codes are the same.
:confused:

The service connector is under the glovebox next to the kick panel. The control unit is underneath the right rear inside quarterpanel trim (in the trunk). Lemme know if you need any of the codes interpreted.