Your 1994 Ford Econoline air bag is flashing 51 What does that mean?
Please do not mess with this yourself. Especially this problem! Checking the airbag system requires deactivation of the airbag system, and special airbag simulators installed in place of the airbags themselves. Messing with the deployment circuit especially, can cause death. If the air bag deploys while your head is level with the steering wheel, your neck can be easly broken. An airbag fully inflates, and starts to deflate in less than 4 milliseconds. That is 4 one-thousanths of a second! That is too fast for anyone to get out of the way, and it will injure you.