VOLVOUU All Engines (2017 Emissions) Fault Code: P225E00 PID: EMS NOx Sensor Performance – Signal Stuck High Bank 1 Sensor 2

VOLVOUU All Engines (2017 Emissions) Fault Code: P225E00 PID: EMS NOx Sensor Performance – Signal Stuck High Bank 1 Sensor 2

The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Observable symptoms
1) None

Probable cause
1) Sensor not mounted in exhaust stream
2) Faulty sensor