Volvo All Engines (2013 Emissions) Fault Code: P220A1C PID: EMS NOx Sensor Supply Voltage Circuit (Bank 1 Sensor 1)

Volvo All Engines (2013 Emissions) Fault Code: P220A1C PID: EMS NOx Sensor Supply Voltage Circuit (Bank 1 Sensor 1)

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.

Conditions for diagnostic trouble code (DTC):
1) Incorrect value, Voltage supply

Probable cause
1) Battery cable connections
2) Battery
3) Wiring harness
4) Faulty sensor