BMW DTC P2252 – O2 Sensor Negative Current Control Circuit Low (Bank 1 Sensor 1)
DTC P2252 meaning on BMW
DTC P2252 on a BMW indicates an issue with the O2 Sensor Negative Current Control Circuit for Bank 1 Sensor 1. This fault code specifically points to a low voltage condition in the circuit.
BMW DTC P2252 symptoms
Symptoms of DTC P2252 on a BMW may include poor fuel economy, rough idling, engine misfires, and potentially an illuminated Check Engine Light on the dashboard.
BMW DTC P2252 causes
The causes of DTC P2252 on a BMW can vary, but common reasons include a faulty O2 sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module (ECM).
BMW DTC P2252 seriousness
While DTC P2252 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and potential long-term engine damage if left unresolved. It is recommended to address this fault code promptly.
How to diagnose DTC P2252 on BMW
To diagnose DTC P2252 on a BMW, start by inspecting the wiring and connectors related to Bank 1 Sensor 1 O2 sensor. Use a multimeter to check for continuity and proper voltage levels. Additionally, scan the ECM for any related fault codes and perform a visual inspection of the sensor itself.
How to fix DTC P2252 on BMW
To fix DTC P2252 on a BMW, you may need to replace the Bank 1 Sensor 1 O2 sensor if it is found to be faulty. Ensure all wiring and connectors are in good condition and make any necessary repairs. Clear the fault code and test drive the vehicle to verify the issue has been resolved.
How to erase DTC P2252 on BMW
To erase DTC P2252 on a BMW, you can use an OBD-II scanner to clear the fault code from the ECM’s memory. Once the repair has been completed and the issue resolved, clearing the code will turn off the Check Engine Light and reset the system for proper monitoring.