Is this a traction MRL or a hydro MRL? Big temperature changes over the weekend? Relevel issues? Is the car level when you come in on Monday? How new is the job? Has this always been a problem? What type of level sensors? Infrared or magnetic? Cockroaches running in front of the sensors? Dirty lenses? Will it get the fault if both LU and LD sensed at the same time? Dead Zone too close? All you have to do is hit the reset and everything works? Does the car move when you reset it? (relevel?)