Scania fault code 4864

EMS Engine Management System Engine speed The engine speed has been above the permitted level. Read explanation → COO Coordinator Supply voltage [V] The supply voltage to the coordinator has been too high. The fault code is set if the voltage on coordinator pin 49 exceeds 34 V. Read explanation → MGU Circuit for voltage class B. Alternating voltage supply to the electric machine is missing. Read explanation → EEC Exhaust Emission Control Reductant doser The temperature sensor in the reductant doser V117 shows a static value even though the engine has been running for a prolonged period and the starting temperature was low. An expe… Read explanation →