BMW DTC P276C – Electric/Auxiliary Transmission Fluid Pump ‘B’ Motor Supply Voltage Circuit High
DTC P276C meaning on BMW
DTC P276C is a diagnostic trouble code that indicates an issue with the Electric/Auxiliary Transmission Fluid Pump ‘B’ Motor Supply Voltage Circuit being too high in a BMW vehicle. This fault code is specific to the transmission system and relates to the motor supply voltage for the auxiliary transmission fluid pump.
BMW DTC P276C symptoms
Symptoms of DTC P276C in a BMW may include:
- Transmission shifting issues
- Harsh or delayed gear engagement
- Transmission slipping
- Reduced fuel efficiency
- Illumination of the Check Engine Light
BMW DTC P276C causes
Common causes of DTC P276C in a BMW include:
- Faulty Electric/Auxiliary Transmission Fluid Pump ‘B’
- High voltage in the motor supply circuit
- Wiring or connector issues in the circuit
- Internal transmission control module fault
BMW DTC P276C seriousness
DTC P276C should be addressed promptly as it can lead to potential transmission damage if left unresolved. Ignoring this fault code may result in further transmission issues and could affect the overall drivability of the vehicle.
How to diagnose DTC P276C on BMW
To diagnose DTC P276C on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the Electric/Auxiliary Transmission Fluid Pump ‘B’ and its wiring for any visible damage
- Check the motor supply voltage circuit for proper voltage levels
- Perform a thorough inspection of the transmission control module and related components
How to fix DTC P276C on BMW
To fix DTC P276C on a BMW, the following steps may be taken:
- Replace the faulty Electric/Auxiliary Transmission Fluid Pump ‘B’
- Repair any damaged wiring or connectors in the motor supply voltage circuit
- Address any issues with the transmission control module
- Clear the fault code and perform a test drive to ensure the issue has been resolved
How to erase DTC P276C on BMW
To erase DTC P276C on a BMW, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made to address the underlying issue, the code can be reset to turn off the Check Engine Light and ensure that the fault has been resolved.
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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