What causes NOx sensor codes?

What causes the P2202 code?

  • The engine control module (ECM) monitors the NOx sensor bank 1 signal wire and the output voltage, and the ECM is expecting lower than specified voltage for the conditions. …
  • The NOx sensor is shorted internally or the wiring is shorted causing the low voltage.

What is NOx sensor bank1?

The P2201 code’s definition is “NOx sensor circuit range/performance (Bank 1).” It’s triggered when the powertrain control module (PCM) detects an issue with the nitrogen oxide sensors. The nitrogen oxide sensor measures the amount of nitrogen oxide expelled in the exhaust.

What does code P229F mean?

What does the Mercedes Benz P2202 P229e P229F error codes mean? This is a generic code to signify the electronic control module of your vehicle has detected that the sensor signal of your NOx sensor is low on bank one. It is caused by the ECM receiving lower than expected voltage from the signal wire.

Where is the NOx sensor located?

Zitat von Youtube: And you can see the module mounted up on the frame rail there.

Why do my NOx sensors fail?

Most engines feature two NOx sensors: an upstream and downstream sensor. Common causes of failure include soot buildup on the sensor, ECU water intrusion, and/or damage to the cable, which will cause the check engine light to illuminate.

How do you reset a NOx sensor?

Go to the System menu, select Engine, then choose the specifics for your vehicle and go to Functional Tests, followed by Special Functions. At the next screen pick Adaptations then scroll down to find Reset Learned Values Of NOx Sensor Upstream And Downstream Of SCR Catalytic Converter.

Can you delete a NOx sensor?

NOx sensor is very expensive to repair or change. With cancellation of NOx sensor system from vehicle you will save costs of repair and fuel consumption. ECU of the vehicle is modified to remove NOx sensor system and NOx sensor itself is removed from vehicle.