P2244 – BMW DTC

BMW DTC P2244 – O2 Sensor Reference Voltage Performance (Bank 1 Sensor 1)

DTC P2244 meaning on BMW

DTC P2244 on a BMW indicates a fault with the O2 Sensor Reference Voltage Performance for Bank 1 Sensor 1. This means that the engine control module (ECM) has detected that the reference voltage being supplied to the oxygen sensor located before the catalytic converter on bank 1 is not within the expected range.

BMW DTC P2244 symptoms

Symptoms of DTC P2244 on a BMW may include:

• Check Engine Light (CEL) illuminated on the dashboard
• Decreased fuel efficiency
• Engine running rough or misfiring
• Possible lack of power or acceleration

BMW DTC P2244 causes

The common causes of DTC P2244 on a BMW include:

• Failed O2 sensor
• Wiring or connector issues in the O2 sensor circuit
• ECM software or hardware problems
• Exhaust leaks affecting sensor performance

BMW DTC P2244 seriousness

While DTC P2244 may not cause immediate drivability issues, it is important to address this fault promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance and emissions control.

How to diagnose DTC P2244 on BMW

To diagnose DTC P2244 on a BMW, you can follow these steps:

1. Use an OBD-II scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors related to Bank 1 Sensor 1 O2 sensor
3. Check the O2 sensor’s voltage output using a multimeter
4. Perform a visual inspection of the exhaust system for leaks or damage

How to fix DTC P2244 on BMW

To fix DTC P2244 on a BMW, you can consider the following actions:

1. Replace the Bank 1 Sensor 1 O2 sensor if it is faulty
2. Repair any damaged wiring or connectors in the O2 sensor circuit
3. Update the ECM software if necessary
4. Address any exhaust leaks that may be affecting sensor performance

How to erase DTC P2244 on BMW

To erase DTC P2244 on a BMW after the issue has been resolved, you can:

1. Use an OBD-II scanner to clear the fault code
2. Ensure that the repair has been completed successfully
3. Perform a test drive to confirm that the Check Engine Light does not reappear

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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