BMW DTC P2228 – Barometric Pressure Sensor ‘A’ Circuit Low
DTC P2228 meaning on BMW
DTC P2228 on a BMW indicates a low voltage condition in the circuit of the Barometric Pressure Sensor ‘A’. The Engine Control Module (ECM) monitors the voltage signal from the sensor and when it falls below a specified range, it triggers this diagnostic trouble code.
BMW DTC P2228 symptoms
Symptoms of DTC P2228 in a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Possible rough idling or stalling
BMW DTC P2228 causes
The common causes of DTC P2228 on a BMW are:
- Malfunctioning Barometric Pressure Sensor ‘A’
- Wiring or connector issues in the sensor circuit
- ECM software or hardware problems
BMW DTC P2228 seriousness
While DTC P2228 may not cause immediate drivability issues, it is important to address it promptly. Ignoring this code can lead to potential engine performance problems and may affect fuel efficiency.
How to diagnose DTC P2228 on BMW
To diagnose DTC P2228 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes and freeze frame data
- Inspect the Barometric Pressure Sensor ‘A’ and its wiring for any visible damage
- Check the sensor’s voltage output using a multimeter
- Perform a smoke test to check for any vacuum leaks that may affect the sensor
How to fix DTC P2228 on BMW
To fix DTC P2228 on a BMW, you can try the following:
- Replace the Barometric Pressure Sensor ‘A’ if it is found to be faulty
- Repair any damaged wiring or connectors in the sensor circuit
- Update the ECM software to the latest version
How to erase DTC P2228 on BMW
To erase DTC P2228 on a BMW, you can clear the fault codes using a diagnostic scanner. After fixing the underlying issue, you can reset the ECM and clear the code to turn off the Check Engine Light.
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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