abs/ac problems help!!!

i have a 95 buick rivera sc and my abs light is on and i dont know what the problems is any help me????? also my ac isnt working correct there are 4 vents on driver side and 4 on passger side only those one are working the ones on drivers side just blow warm air what shouldi do??? i wokred fine last year

the a/c problem is common among riviera owners, one of the doors is stuck open (out of range) and must be manualy turned back, tho it will sometimes click back into place over time. otherwise you must pull off the driver side panel below the steering wheel and move the acuator to get it back into range. mine does the same thing but im too lazy to spend a day finding the actuator and pullign it all apart. the abs light is likely on b/c of a wheel speed/abs sensor is dirty. try washing the sensors by the wheels and see if it helps.

ac problem i had was very similar, instead, the 4 passenger vents blew conditioned air, the rest of the car was just ventilated.

replacing ac compressor from junkyard used one solved the problem