VOLVOUU All Engines (2017 Emissions) Fault Code: U030100 PID: EMS Program Memory Test Cell Mode
Circuit description
This diagnostic trouble code (DTC) detects faults in the main software. Faulty main software can result in engine no start symptoms.
Conditions for diagnostic trouble code (DTC)
Faulty data in program memory
Probable cause
1) Internal fault in electronic control unit (ECU)
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