Thank you very much edward_t!
Great idea to basically bench test and work backwards from there.
Shorts to frame are one of our first standard tests when something is acting weird.
Thanks for the reminder though.
No park brake switch on this one, we have the company mandated auto engaging park brake that is working properly. Will run through it again just to be sure though.
We service around 400 company owned units out of our shop and we see our share of unusual issues but this one has been a pain for a few days now.