P2227 – BMW DTC

BMW DTC P2227 – Barometric Pressure Sensor ‘A’ Circuit Range/Performance

DTC P2227 meaning on BMW

DTC P2227 for BMW indicates a fault with the Barometric Pressure Sensor ‘A’ circuit. This code is triggered when the signal from the barometric pressure sensor falls outside the expected range or performance parameters set by the vehicle’s ECM (Engine Control Module).

BMW DTC P2227 symptoms

Symptoms of DTC P2227 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel efficiency
• Engine stalling or rough idling

BMW DTC P2227 causes

Common causes of DTC P2227 on a BMW include:

• Barometric pressure sensor failure
• Wiring or connector issues in the sensor circuit
• ECM software or hardware problems

BMW DTC P2227 seriousness

While DTC P2227 may not always result in immediate drivability issues, it is important to address this fault promptly. Ignoring this code can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to engine components.

How to diagnose DTC P2227 on BMW

To diagnose DTC P2227 on a BMW, follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data.
2. Inspect the barometric pressure sensor and its wiring for any visible damage or corrosion.
3. Check the sensor’s voltage output using a multimeter to ensure it is within specifications.
4. Perform a smoke test to check for any vacuum leaks that could affect barometric pressure readings.

How to fix DTC P2227 on BMW

To fix DTC P2227 on a BMW, consider the following:

1. Replace the barometric pressure sensor if it is found to be faulty.
2. Repair any damaged wiring or connectors in the sensor circuit.
3. Update the ECM software to the latest version to address any software-related issues.
4. Clear the fault code and perform a test drive to ensure the issue has been resolved.

How to erase DTC P2227 on BMW

To erase DTC P2227 on a BMW, use a diagnostic scanner to clear the fault code from the ECM’s memory. After clearing the code, perform a test drive to verify that the issue has been successfully resolved.

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

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.