ABS Relay
 

I have a suspicion that my ABS relay has gone bad on my 1993 C2. When I start the car, I immediatly get the warning sound and the ABS light is on. Also, when driven, the spedo doesnt work. Does anyone know how to jumper past the ABS relay (R34) so that I can tell if this is the issue?

jumper terminal 30 (12v input) and 87 (12v output to ABS control unit)

Thanks Geoff. The jumper fixed the problem and I have ordered a new relay. In by-passing the relay, am I assume that I am activating the ABS. Is the car safe to drive with the jumper in place, or should I leave the bad relay in until I get the new one?

By jumpering the wire harness, you are providing power to the ABS control unit and pump and it will be powered all the time. You may consider just driving the car with the bad relay which means your ABS will not work. Obviously, I could only recommend parking the car until it has been fixed properly (read liability statement here).