I caused CTIS valve to dump someway

[olly hondro]

I had performed the "Ronmar front gladhand delete" with no issues. Removed the rear gladhands a long time ago by plugging the outputs of last valve in the train. You see, I plan to tow nothing nor get towed as if it was a trailer. Anyway, I was sitting in the cab with the truck running then invoked the red, trailer supply knob. You would think nothing would happen, but the rearmost valve vented. Unplugged the CTIS controller and it stops. Just scratching my head for the moment, but when I discover what happened then I will share.

 

[Ronmar]

The only interconnect between the CTIS and the air brake system should be the air supply line off of the wet tank protection valve... it stopping when you unplugged the controller says it was something the controller was causing, but why?