The ConsuLab CL-MP-1918 is a double-sided trainer has been developed to teach modern automotive lighting systems on one side and CAN Bus multiplex lighting systems on the other through student led learning exercises where students develop their understanding of the system through the physical wiring all circuits. The product is used for teaching Ohm’s law, basic circuits, advanced circuits, relay controlled, power side and ground side-controlled circuits, the J-1939 protocol with digital and analog inputs/outputs, and there is an included fault box on each side with 12 real world faults on each side that include open circuits, short circuits, high resistance circuits that will require voltage drop testing to verify, ground faulted circuits and more.