P201F – BMW DTC

BMW DTC P201F – Reductant Pump ‘A’ Stuck On

DTC P201F meaning on BMW

DTC P201F on a BMW indicates an issue with the Reductant Pump ‘A’ being stuck on. The reductant pump is responsible for supplying the Diesel Exhaust Fluid (DEF) to the Selective Catalytic Reduction (SCR) system. When the pump is stuck on, it can lead to improper DEF injection, affecting the vehicle’s emissions control system.

BMW DTC P201F symptoms

Symptoms of DTC P201F on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Failed emissions test

BMW DTC P201F causes

Common causes of DTC P201F on a BMW include:

• Defective reductant pump
• Electrical issues in the reductant pump circuit
• Software glitches

BMW DTC P201F seriousness

Ignoring DTC P201F on a BMW can lead to increased emissions, reduced fuel efficiency, and potential damage to the catalytic converter. It is important to address this issue promptly to ensure proper vehicle operation and compliance with emissions regulations.

How to diagnose DTC P201F on BMW

To diagnose DTC P201F on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes
2. Inspect the reductant pump and its electrical connections for any visible damage
3. Test the reductant pump operation using diagnostic tools
4. Check for any software updates related to the reductant pump control module

How to fix DTC P201F on BMW

To fix DTC P201F on a BMW, the following steps may be taken:

1. Replace the faulty reductant pump if necessary
2. Repair any damaged electrical connections or wiring related to the reductant pump
3. Update the software of the reductant pump control module
4. Clear the fault codes and perform a test drive to ensure the issue is resolved

How to erase DTC P201F on BMW

To erase DTC P201F on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s system. After addressing the underlying issue causing the fault code, clearing the code will reset the Check Engine Light and ensure that the repair was successful.

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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