BMW DTC P2444 – AIR System Pump Stuck On (Bank 1)
DTC P2444 meaning on BMW
The Diagnostic Trouble Code (DTC) P2444 for BMW refers to the ¨AIR System Pump Stuck On (Bank 1).¨ This code indicates that the secondary air injection system pump for Bank 1 is continuously running or stuck in the on position.
BMW DTC P2444 symptoms
Symptoms of DTC P2444 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Reduced engine performance
- Increased fuel consumption
- Abnormal noise coming from the secondary air injection system
BMW DTC P2444 causes
The common causes of DTC P2444 on a BMW include:
- Faulty secondary air injection system pump
- Wiring or connector issues in the secondary air injection system circuit
- ECU (Engine Control Unit) software glitch
BMW DTC P2444 seriousness
While DTC P2444 may not cause immediate drivability issues, it is important to address this code promptly to prevent potential damage to the secondary air injection system components and ensure optimal engine performance.
How to diagnose DTC P2444 on BMW
To diagnose DTC P2444 on a BMW, you can follow these steps:
- Use an OBD-II scanner to retrieve the fault code and freeze frame data
- Inspect the secondary air injection system pump for any visible damage or signs of malfunction
- Check the wiring and connectors in the secondary air injection system circuit for any loose connections or corrosion
- Perform a smoke test to check for leaks in the secondary air injection system
How to fix DTC P2444 on BMW
To fix DTC P2444 on a BMW, you can consider the following steps:
- Replace the faulty secondary air injection system pump
- Repair or replace any damaged wiring or connectors in the secondary air injection system circuit
- Update the ECU software to the latest version
How to erase DTC P2444 on BMW
To erase DTC P2444 on a BMW, you can clear the code using an OBD-II scanner or by disconnecting the vehicle’s battery for a few minutes. However, it is recommended to address the root cause of the code before clearing it 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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