BMW DTC P0C27 – Electric/Auxiliary Transmission Fluid Pump ‘A’ Motor Current Low
DTC P0C27 meaning on BMW
DTC P0C27 on a BMW indicates an issue with the Electric/Auxiliary Transmission Fluid Pump ‘A’ Motor Current being lower than the expected value. This fault code is specific to the electric auxiliary transmission fluid pump motor in the vehicle.
BMW DTC P0C27 symptoms
Symptoms of DTC P0C27 on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Transmission shifting issues
- Reduced performance or efficiency
BMW DTC P0C27 causes
Common causes of DTC P0C27 on a BMW include:
- Failed electric auxiliary transmission fluid pump motor
- Wiring or connection issues
- Faulty control module
BMW DTC P0C27 seriousness
The seriousness of DTC P0C27 on a BMW can vary. While the vehicle may still be operable with this fault, it is important to address it promptly to prevent potential transmission damage or further issues.
How to diagnose DTC P0C27 on BMW
To diagnose DTC P0C27 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the electric auxiliary transmission fluid pump motor and its connections
- Check for any visible signs of damage or wear
- Test the motor’s current draw to determine if it is operating within specifications
How to fix DTC P0C27 on BMW
To fix DTC P0C27 on a BMW, the following steps may be taken:
- Replace the electric auxiliary transmission fluid pump motor if it is found to be faulty
- Repair any damaged wiring or connections related to the pump motor
- If the control module is at fault, it may need to be replaced or reprogrammed
How to erase DTC P0C27 on BMW
To erase DTC P0C27 on a BMW, a diagnostic scanner can be used to clear the fault code from the vehicle’s memory. Once the underlying issue has been addressed and fixed, the code can be cleared to reset the Check Engine Light.
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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