locker comes on/off

Hello They tried to steal my jeep , since then the e-lockers dont work , at first the dash screen give service rear locker , i got it to the dealer they thought it was a bad sensor , after check they says its just the plug and changed it , now i see that jeep is locked front and rear , and when...

HI, I REGEARED MY DIFFERENTIALS AND NOW REAR LOCKER COMES ON/OFF BY ITSELF??? ANYONE KNOW THE FIX? WHY? IT DOESNT DO THIS TO THE FRONT? I EVEN OPENED DIFF, CHANGED OIL AGAIN AND CLEANED SENSOR??? THANK YOU IN ADVANCE!