Volvo All Engines (2017 Emissions) Fault Code: U300049 PID: EMS Electronic Control Unit

Volvo All Engines (2017 Emissions) Fault Code: U300049 PID: EMS Electronic Control Unit

Conditions for diagnostic trouble code (DTC):
1) Incorrect check sum in data set memory

Observable symptoms
1) Engine does not start

Probable cause
1) Engine Control Module (ECM)