Volvo All Engines (2013 Emissions) Fault Code: P066601 PID: EMS Control Module Internal Temperature Sensor “A”

Volvo All Engines (2013 Emissions) Fault Code: P066601 PID: EMS Control Module Internal Temperature Sensor “A”

Conditions for diagnostic trouble code (DTC):
1) Internal fault in electronic control unit (ECU)

Probable cause
1) ECM – Engine Control Module