Scania fault code 4866

Code 4866 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System Rotational speed signals, rotational speed sensor T74 The rotational speed signal from rotational speed sensor T74 is lower than it should be for the current rotational speed. Read explanation → EMD Rotational speed signals, rotational speed sensor T74 The rotational speed signal from rotational speed sensor T74 is lower than it should be for the current rotational speed. Read explanation → EME Rotational speed signals, rotational speed sensor T74 The rotational speed signal from rotational speed sensor T74 is lower than it should be for the current rotational speed. Read explanation → EMO Rotational speed signals, rotational speed sensor T74 The rotational speed signal from rotational speed sensor T74 is lower than it should be for the current rotational speed. Read explanation →