BMW DTC P2571 – Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic
DTC P2571 meaning on BMW
DTC P2571 on a BMW indicates an issue with the Direct Ozone Reduction Catalyst Temperature Sensor Circuit being intermittent or erratic. This sensor is responsible for monitoring the temperature of the ozone reduction catalyst, which is a crucial component in reducing harmful emissions from the vehicle’s exhaust system.
BMW DTC P2571 symptoms
Symptoms of DTC P2571 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Decreased fuel efficiency
- Engine running rough or misfiring
- Reduced engine performance
BMW DTC P2571 causes
The common causes of DTC P2571 on a BMW include:
- Faulty Direct Ozone Reduction Catalyst Temperature Sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or damage to sensor components
- Software or calibration issues
BMW DTC P2571 seriousness
DTC P2571 should not be ignored as it can lead to increased emissions and potential damage to the ozone reduction catalyst. Continuing to drive with this fault may result in poor engine performance and could potentially harm the environment.
How to diagnose DTC P2571 on BMW
To diagnose DTC P2571 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and freeze frame data
- Inspect the Direct Ozone Reduction Catalyst Temperature Sensor and its wiring for any visible damage
- Test the sensor’s resistance and voltage output
- Check for any software updates or calibrations related to the sensor
How to fix DTC P2571 on BMW
To fix DTC P2571 on a BMW, the following steps may be taken:
- Replace the faulty Direct Ozone Reduction Catalyst Temperature Sensor
- Repair or replace any damaged wiring or connectors in the sensor circuit
- Clear the fault code and perform a test drive to ensure the issue is resolved
- If necessary, update the vehicle’s software or calibration to address any related issues
How to erase DTC P2571 on BMW
To erase DTC P2571 on a BMW, the fault code can be cleared using a diagnostic scanner. After the repair has been completed, the mechanic can reset the Check Engine Light and erase the code from the vehicle’s memory. It is important to ensure that the underlying issue has been resolved before clearing the code to prevent it from reoccurring.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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