BMW DTC P27A6 – Electric/Auxiliary Transmission Fluid Pump ‘B’ Stuck On
DTC P27A6 meaning on BMW
The DTC P27A6 code for BMW indicates that the Electric/Auxiliary Transmission Fluid Pump ‘B’ is stuck on. This means that the control module has detected a malfunction in the operation of the auxiliary transmission fluid pump, leading to it being continuously powered on.
BMW DTC P27A6 symptoms
Some common symptoms associated with the BMW DTC P27A6 code may include:
- Check Engine Light illuminated on the dashboard
- Transmission shifting issues
- Reduced fuel efficiency
- Transmission overheating
BMW DTC P27A6 causes
The Electric/Auxiliary Transmission Fluid Pump ‘B’ stuck on condition in a BMW can be caused by various factors, such as:
- Defective transmission fluid pump
- Wiring or connector issues
- Faulty transmission fluid pump relay
- Internal control module malfunction
BMW DTC P27A6 seriousness
Ignoring the DTC P27A6 code in a BMW can lead to potential transmission damage and drivability issues. It is important to address this problem promptly to prevent further complications and ensure the vehicle’s optimal performance.
How to diagnose DTC P27A6 on BMW
When diagnosing the DTC P27A6 code on a BMW, the following steps can be taken:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
- Inspect the transmission fluid pump and related components for any visible damage or defects
- Check the wiring and connectors for any signs of wear or corrosion
- Test the transmission fluid pump relay for proper functionality
- Perform a thorough inspection of the transmission system to identify any other potential issues
How to fix DTC P27A6 on BMW
To address the DTC P27A6 code on a BMW, the following steps can be taken:
- Replace the faulty Electric/Auxiliary Transmission Fluid Pump ‘B’
- Repair or replace any damaged wiring or connectors
- Replace the transmission fluid pump relay if necessary
- Clear the fault codes from the vehicle’s computer after completing the repairs
- Perform a test drive to ensure the issue has been resolved
How to erase DTC P27A6 on BMW
To erase the DTC P27A6 code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After completing the necessary repairs and confirming that the issue has been resolved, you can reset the Check Engine Light and ensure that the code does not reappear during subsequent driving cycles.
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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