Scania fault code 6551

Code 6551 is used by 4 different Scania systems. Choose the control unit shown in your diagnostic tool:

EMS Engine Management System Incorrect rear axle ratio Implausible gear ratio between the gearbox output and wheel speed sensor. Read explanation → EMD Implausible parameters set for gear ratio The gearbox speed coming from the gearbox and the rotation of the wheels do not correspond. Read explanation → EME Implausible parameters set for gear ratio The gearbox speed coming from the gearbox and the rotation of the wheels do not correspond. Read explanation → EMO Implausible parameters set for gear ratio The gearbox speed coming from the gearbox and the rotation of the wheels do not correspond. Read explanation →