BMW DTC P2253 – O2 Sensor Negative Current Control Circuit High (Bank 1 Sensor 1)
DTC P2253 meaning on BMW
DTC P2253 on a BMW indicates an issue with the O2 Sensor Negative Current Control Circuit High for Bank 1 Sensor 1. This means that the control module has detected a high voltage condition in the circuit responsible for controlling the negative current of the oxygen sensor located before the catalytic converter on the bank 1 side of the engine.
BMW DTC P2253 symptoms
Symptoms of DTC P2253 on a BMW may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced engine performance
BMW DTC P2253 causes
Common causes of DTC P2253 on a BMW include:
- Faulty O2 sensor
- Wiring or connector issues in the O2 sensor circuit
- Internal ECM fault
BMW DTC P2253 seriousness
While DTC P2253 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and increased emissions. Ignoring this fault can potentially cause damage to the catalytic converter and other engine components over time.
How to diagnose DTC P2253 on BMW
To diagnose DTC P2253 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the wiring and connectors in the O2 sensor circuit for any damage or corrosion
- Test the O2 sensor using a multimeter to check for proper voltage readings
- Check the ECM for any internal faults
How to fix DTC P2253 on BMW
To fix DTC P2253 on a BMW, you can try the following solutions:
- Replace the faulty O2 sensor
- Repair or replace any damaged wiring or connectors in the O2 sensor circuit
- If the issue persists, consider checking and repairing any internal faults in the ECM
How to erase DTC P2253 on BMW
To erase DTC P2253 on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue causing the fault code, clearing the code will reset the Check Engine Light and ensure the system is operating correctly.