Scania fault code 6520

EMS Engine Management System Secondary brake pressure circuit pressure signal, below normal. The air pressure output to the engine exhaust brake actuator is higher than the input pressure to the powertrain indicating that the circuit sensor is showing a too low value. Read explanation → EMD Exhaust gas pressure sensor T125 Implausibly low signal from exhaust gas pressure sensor T125. Read explanation → EME Exhaust gas pressure sensor T125 Implausibly low signal from exhaust gas pressure sensor T125. Read explanation → EMO Exhaust gas pressure sensor T125 Implausibly low signal from exhaust gas pressure sensor T125. Read explanation →