My AHC worked flawlessly before leaving for vacation. We drove approximately 1000 miles each way with a heavy load - the LX ran in Low while we were travelling, and returned to N after we unloaded at the campground. When we got back, the AHC returned itself to the N position, but now it is blinking OFF. I think I read that the system might shut off to not overtax the self-leveling? I checked the fuses and disconnected negative terminal thinking it might reset. The fluid level looks good in reservoir (I changed it last year) so I don't think there are any leaks. My next step is to get the TechStream and cable. Any information is greatly appreciated.