BMW DTC P2055 – Reductant Injection Valve Circuit High (Bank 1 Unit 2)
DTC P2055 meaning on BMW
DTC P2055 for BMW refers to a fault with the Reductant Injection Valve Circuit High on Bank 1 Unit 2. This diagnostic trouble code indicates that there is an electrical circuit malfunction related to the reductant injection system in the vehicle.
BMW DTC P2055 symptoms
Symptoms of DTC P2055 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Increased fuel consumption
- Failed emissions test
BMW DTC P2055 causes
Common causes of DTC P2055 on a BMW include:
- Faulty reductant injection valve
- Wiring or connector issues in the circuit
- ECU (Engine Control Unit) malfunction
BMW DTC P2055 seriousness
DTC P2055 should not be ignored as it can lead to increased emissions, reduced fuel efficiency, and potential engine performance issues. It is recommended to address this fault promptly to prevent further complications.
How to diagnose DTC P2055 on BMW
To diagnose DTC P2055 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the reductant injection valve and its wiring for any visible damage
- Check the ECU for any stored fault codes or issues
How to fix DTC P2055 on BMW
To fix DTC P2055 on a BMW, you can try the following solutions:
- Replace the faulty reductant injection valve
- Repair or replace any damaged wiring or connectors in the circuit
- If necessary, address any ECU issues or reprogram the ECU
How to erase DTC P2055 on BMW
To erase DTC P2055 on a BMW, you can:
- Use a diagnostic scanner to clear the fault code
- After making the necessary repairs, reset the ECU to clear the code
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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