I was running the tmps suppression through the jb4 for months with no issues as my forgestars do not have the tmps.
I got a new front bumper and then started to have issues......it would go offnon stop every minute instead of only 1x after a few miles.
Turned out they forgot to plug one of the connectors back in when fitting the bumper.
So if any of you had bumper work I'd start there, it's on the front side of the front fender lines for the front, not sure where the rears as the front were my problem.
Hope this Helps someone