location of relay for step on 1995 42'

[GregOConnor]

there is a switch on the chassis air press tank that opens/closes a 12v path when the tank gets to a low set (52psi) pressure. it will then signal the step to open. the thinking is ; steps deploy at the last possible pressure so they are extended past the cam/over. therefor you need the chassis tanks full of psi when you test.
also check the switch in the door to see that continuity changes open and close,
also I usually remove the clevis pin on the clippard ram when I screw with steps because they deploy forcefully and can pinch off a finger
there are two mercury filled contact switches on the step arms (one inch long 3/8 inch black tubes plastic with two wires out one end. one for open one for closed. if the clamps are lose, try and reposition them to see if they make the thing work. replace the zipties and screw if this is the issue.
I will post a pic from my phone later of my step arms and the mercury switches