The 95 is goin to be tricky.. you need an OBD II code reader with OBD 1 harness...
Another way is to pull the battery cable off the car for ( I do it for half hour cause it'* freakin cold out.. and gives you excuse to go back in and warm up )
EDIT: Forgot yours is */C.. was thinkin of the N/A
OBD 1 code reader.. or battery method
EDIT again: YOu can't really clear the ABS light.. its usually caused by other a bad speed sensor ( hub bearing replacement ) and or master brake cylinder issue..
I've been told that only GM Stealership can read ABS code to find out wat is the error for the ABS lght