Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hopefully i can help..
Very often with such faults as you describe this could be down to your
"back door request microswitch" itself which is part of the back door handle assembly - its a very common problem on the k12 micra.they often get effected via wiring by water/moisture/corrosion and cause a whole load of problems inc the boot popping on its own or not opening at all or causing the battery to drain etc.. the only method unfortunatly to have that request switch replaced.... i do hope this helps...