Help! My 2003 Bot compressor won't shut off

[Jack21]

Ok, I know the game for 2004 is on, but we need our old Bot operable for fund raising etc.

The Bot was working fine unti (I think) somebody tinkered with the default program. Now all systems still work, but the compressor won't shut off at 120 psi. I have swapped out the spike, the 3 wire cable, the fuses etc.. checked the cut off switch cable for breaks.( repaired this cable with almost all broken strands at connector end of cable). When pressure hits 120 psi the switch shows the circuit opens.( when checked with an ohm meter at the connector that attaches to the Robot controller).
Now I'm not even sure where the cut off switch is supposed to be connected to the Robot controller. What pins should I be connected to on the controller. any other help would sure be appreciated. Hadn't counted on wasting time on this old Bot when we need to devote energy to this years machine.