BMW DTC P27E4 – Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit Range/Performance
DTC P27E4 meaning on BMW
DTC P27E4 on a BMW refers to the Electric/Auxiliary Transmission Fluid Pump Control Valve Circuit Range/Performance. This diagnostic trouble code indicates an issue with the control valve circuit of the electric or auxiliary transmission fluid pump in the vehicle.
BMW DTC P27E4 symptoms
Symptoms of BMW DTC P27E4 may include:
- Transmission shifting issues
- Transmission slipping
- Transmission overheating
- Check Engine Light illuminated
BMW DTC P27E4 causes
Common causes of BMW DTC P27E4 include:
- Faulty electric or auxiliary transmission fluid pump control valve
- Wiring or connector issues in the control valve circuit
- Low transmission fluid level
- Internal transmission pump failure
BMW DTC P27E4 seriousness
Ignoring BMW DTC P27E4 can lead to further transmission damage and potential drivability issues. It is important to address this code promptly to prevent more severe problems and ensure the vehicle’s proper operation.
How to diagnose DTC P27E4 on BMW
To diagnose BMW DTC P27E4, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the electric or auxiliary transmission fluid pump control valve and its circuit for any visible damage
- Check the transmission fluid level and condition
- Perform a thorough inspection of the wiring and connectors in the control valve circuit
How to fix DTC P27E4 on BMW
To fix BMW DTC P27E4, 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 level is correct and top up if necessary
- If internal transmission pump failure is detected, it may require transmission overhaul or replacement
How to erase DTC P27E4 on BMW
To erase BMW DTC P27E4, a diagnostic scanner can be used to clear the fault code from the vehicle’s memory. After addressing the underlying issue causing the code, the Check Engine Light should reset on its own once the vehicle completes a few drive cycles without detecting the fault.