NOx Sensor Quick Test

NOx Sensor QuickTest

Some Possible Faults

P2000, P2001 - NOx trap - efficiency below threshold
P20EE, P20EF, P20F2, P20F3 - NOx sensor - efficiency below threshold
P06EA, P06EB - NOx sensor - processor fault
P20EC, P20ED, P20F0, P20F1 - NOx sensor - over-temperature condition
P21B2 - NOx trap - excessive time to enter closed loop control
P21B3 - NOx trap, closed loop control - signal too high
P21B4, P21B5 - NOx trap, bank 1 - temperature too high
P2200 - NOx sensor - circuit malfunction
P2201 - NOx sensor - range/performance problem
P2202 - NOx sensor - low input
P2203 - NOx sensor - high input
P2204 - NOx sensor - intermittent input
P2205 - NOx sensor heater control - open circuit
P2206 - NOx sensor heater control - circuit low
P2207 - NOx sensorheater control - circuit high
P2208 - NOx sensor heater sense circuit - malfunction