pottery barn arc lamp. Diagnostic Fault Codes For Cummins Engines Applies to Engine Models QSB T2, QSC T2, QSL T2, QSM11, QSX15, QSK19, QSK23, QST30, QSK456078. 4. Follow Us Some Cummins engine fault codes include 111, which indicates an internal engine control unit failure; 214, which indicates that the engine's oil temperature is too high; and 434, which indicates that power was lost while the. "> separate. DECATUR Kyle Donald "Don" Peebles, age 86, of Decatur passed away on June 15, 2022. Getting a code 3597 which looks like communication problem between ECU and def controller.