Ok I have a problem. When I set the parking brake the system doesn't know that it is set. I can't retract the jacks or move the slides. It's a 2003 Itasca suncruiser 38g workhorse. I've checked all of the fuses and breakers Can't find anything tripped. It all worked Sunday, now there is no 'idiot' light on the dash when the parking break is engaged.