MAdams
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I've been trying to diagnose a non op CTIS system. I used the DANA software on my laptop and plugged into the computer. The software says that the pressure switch is "open" even when the tank pressure is full. I pulled the switch and bench tested it and its working. I put a jumper wire where the switch would plug into to trick the computer think its has full pressure but the software still says the switch is open. It's a very simple switch and is similar to the 5 ton series switches. You can manually inflate and deflate the tires using the software even if the tank pressure is low, or you have a bad switch.
The only thing I can think of is a break in the wiring harness?
The only thing I can think of is a break in the wiring harness?