Scania fault code 8711

Code 8711 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System NOx sensor downstream of the particulate filter, fault in voltage supply CAN message of too high or too low voltage supply to NOx sensor T131 has been received. Read explanation → EMU Water valve V245, feedback signal, short circuit to voltage supply or open circuit The control unit indicates high voltage on the valve's feedback signal. Read explanation →