Scania fault code 8378

Code 8378 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

AMS V117, Reductant doser heater, electrical fault The control unit indicates an electrical fault the reductant doser heater control circuit. Read explanation → EEC Exhaust Emission Control Reductant circuit Fault in the control of the heater of the reductant doser. Read explanation →