focus on troubleshooting the car dropping direction while on inspection, it is a fairly simple circuit from that aspect. things to check out, pushing the inspect button picks ua relay, which in turn picks ux relay which then picks u relay. see which of these relays drop while inspecting the car up from the machine room. If ua stays picked but ux drops, then it is probably safety circuit or door lock. if u drops but ua and ux are still up, then look into normal limit circuit or ms, fp falling out. good starting point good luck