its the "close assist" pump over the rear wheel. If it comes back to life after the "fuse" trick it will probably only be temporary. Try doing a search on "closing assist", There is nothing in the doors that you can change. These pumps have safeties and if they dont close properly in two ties the circuit is disabled. I am on my 2nd in 14 years and the dealer has not had the doors open, just replaced the pump and checked to make sure there were no leaks