Scania fault code 4886

Code 4886 is used by 2 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System Rotational speed sensor The signal from rotational speed sensor T74 has indicated an implausible rotational speed decrease between two subsequent pulses. Read explanation → AMS Reductant doser downstream of the turbocharger, pressure too low The pressure is too low in the reductant doser downstream of the turbo charger when the engine is switched off. Read explanation →