Scania fault code 8450

Code 8450 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System Control unit The control unit could not convert the signal from the sensor. Read explanation → EMU Coolant pump M524, control signal: Short circuit to the voltage supply. The control unit indicates too high a voltage. Read explanation → AMS Low reductant delivery at the downstream dosing unit The dosing quantity estimated from the reductant pressure and pump and return flow does not match the requested dosing. Read explanation →