BMW DTC P27E3 – Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit/Open
DTC P27E3 meaning on BMW
The Diagnostic Trouble Code (DTC) P27E3 for BMW refers to an issue with the Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit being open. This means that there is a malfunction in the control valve circuit that manages the electric or auxiliary transmission fluid pump.
BMW DTC P27E3 symptoms
Symptoms of the BMW DTC P27E3 may include:
- Transmission shifting issues
- Reduced acceleration
- Transmission overheating
- Warning lights on the dashboard
BMW DTC P27E3 causes
Common causes of the BMW DTC P27E3 include:
- Faulty electric or auxiliary transmission fluid pump control valve
- Wiring or connector issues in the control valve circuit
- Low transmission fluid levels
- Internal transmission problems
BMW DTC P27E3 seriousness
The BMW DTC P27E3 should be addressed promptly as it can lead to further transmission damage if left unresolved. Ignoring this issue may result in more severe transmission problems and potential safety hazards while driving.
How to diagnose DTC P27E3 on BMW
To diagnose the DTC P27E3 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the electric or auxiliary transmission fluid pump control valve and its circuit for any visible damage
- Check the transmission fluid level and condition
- Conduct a thorough visual inspection of the wiring and connectors related to the control valve
How to fix DTC P27E3 on BMW
To fix the DTC P27E3 on a BMW, the following steps may be taken:
- Replace the faulty electric or auxiliary transmission fluid pump control valve
- Repair or replace any damaged wiring or connectors in the control valve circuit
- Ensure the transmission fluid is at the correct level and in good condition
- If internal transmission issues are found, further diagnostics and repairs may be necessary
How to erase DTC P27E3 on BMW
After fixing the underlying issue causing the DTC P27E3 on a BMW, the fault codes can be erased using a diagnostic scanner. This will clear the code from the vehicle’s memory and reset the Check Engine Light. It is important to ensure that the repair has been successful before clearing the fault codes.
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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