Scania fault code 657

BMU Battery Management Unit The heater does not respond to activation attempts The heater temperature does not increase as expected. Read explanation → COO Coordinator Coordinator Internal fault in the control unit. Read explanation → MBS Electrically powered wheelchair ramp control system (EWR) The electrically powered wheelchair ramp has detected an internal fault in the control unit. Information about the fault is sent from the wheelchair ramp to the main body system (M… Read explanation → CUV Visibility system Main beam LH Left-hand main beam is activated. Read explanation → BCI Short circuit, BCI1 pin C2 (truck) or C628-16 (bus) Short circuit to supply voltage (+24 V) or reference voltage (+5 V). Read explanation → CMS Solenoid valve for differential lock, driving rear axle/axles The solenoid valve (V10) that controls the differential lock for the driving rear axle/axles, connected on PWM output 1 (Pin: signal A3, ground A1) is overloaded. Read explanation → DAS Control unit Internal fault in the control unit. Read explanation →