P2054 – BMW DTC

BMW DTC P2054 – Reductant Injection Valve Circuit Low (Bank 1 Unit 2)

DTC P2054 meaning on BMW

DTC P2054 for BMW refers to a fault with the Reductant Injection Valve Circuit Low in Bank 1 Unit 2. This diagnostic trouble code indicates that the control module has detected a low electrical signal or voltage in the circuit related to the reductant injection valve for the specified bank and unit.

BMW DTC P2054 symptoms

Symptoms of DTC P2054 on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Possible exhaust system issues

BMW DTC P2054 causes

Common causes of DTC P2054 on a BMW include:

• Faulty reductant injection valve
• Wiring or connector issues in the circuit
• Defective control module
• Software glitches

BMW DTC P2054 seriousness

The seriousness of DTC P2054 on a BMW lies in its potential to affect the vehicle’s emissions control system and overall engine performance. Ignoring this fault can lead to increased emissions, reduced fuel efficiency, and possible long-term damage to engine components.

How to diagnose DTC P2054 on BMW

To diagnose DTC P2054 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the wiring and connectors related to the reductant injection valve
3. Test the reductant injection valve for proper operation
4. Check the control module for any software updates or faults

How to fix DTC P2054 on BMW

To fix DTC P2054 on a BMW, you may need to:

1. Replace the faulty reductant injection valve
2. Repair or replace any damaged wiring or connectors
3. Update the control module software if necessary
4. Clear the fault code and perform a test drive to ensure the issue is resolved

How to erase DTC P2054 on BMW

To erase DTC P2054 on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code
2. Perform a test drive to verify that the code does not return

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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