BMW DTC P2202 – NOx Sensor Circuit Low (Bank 1 Sensor 1)
DTC P2202 meaning on BMW
The Diagnostic Trouble Code (DTC) P2202 for BMW refers to an issue with the NOx (Nitrogen Oxide) sensor circuit on Bank 1 Sensor 1. This code indicates that the signal from the NOx sensor located in the exhaust system before the catalytic converter is reading lower than the expected range.
BMW DTC P2202 symptoms
Symptoms of DTC P2202 on a BMW may include:
- Check Engine Light (MIL) illuminated on the dashboard
- Reduced engine performance or power
- Increased fuel consumption
- Possible emission of higher levels of pollutants
BMW DTC P2202 causes
Common causes of DTC P2202 on a BMW include:
- Failed NOx sensor
- Wiring or connector issues in the NOx sensor circuit
- Exhaust system leaks
- Software or calibration issues
BMW DTC P2202 seriousness
While DTC P2202 may not cause immediate drivability issues, it is important to address this problem promptly to prevent potential damage to the catalytic converter and ensure compliance with emission regulations.
How to diagnose DTC P2202 on BMW
To diagnose DTC P2202 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes and data related to the NOx sensor
- Inspect the wiring and connectors for any visible damage or corrosion
- Test the NOx sensor for proper operation using a multimeter or scan tool
- Check for exhaust leaks that could affect sensor readings
How to fix DTC P2202 on BMW
To fix DTC P2202 on a BMW, the following steps may be taken:
- Replace the faulty NOx sensor if it is determined to be the cause of the issue
- Repair or replace any damaged wiring or connectors in the sensor circuit
- Address any exhaust leaks in the system
- Perform a software update or calibration if necessary
How to erase DTC P2202 on BMW
To erase DTC P2202 on a BMW, the fault code can be cleared using a diagnostic scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is recommended to address the underlying issue causing the fault code before clearing it to prevent it from reoccurring.