BMW DTC P276B – Electric/Auxiliary Transmission Fluid Pump ‘B’ Motor Supply Voltage Circuit Low
DTC P276B meaning on BMW
DTC P276B is a diagnostic trouble code that indicates an issue with the Electric/Auxiliary Transmission Fluid Pump ‘B’ Motor Supply Voltage Circuit being too low in a BMW vehicle.
BMW DTC P276B symptoms
Symptoms of DTC P276B in a BMW may include:
- Transmission slipping or delayed engagement
- Harsh shifting
- Transmission overheating
- Reduced fuel efficiency
BMW DTC P276B causes
Common causes of DTC P276B in a BMW include:
- Faulty Electric/Auxiliary Transmission Fluid Pump ‘B’
- Low voltage supply to the pump motor
- Wiring or connector issues
- Faulty transmission control module
BMW DTC P276B seriousness
Ignoring DTC P276B in a BMW can lead to further damage to the transmission system and potentially result in costly repairs. It is important to address this issue promptly to prevent any long-term damage.
How to diagnose DTC P276B on BMW
To diagnose DTC P276B on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the wiring and connectors related to the Electric/Auxiliary Transmission Fluid Pump ‘B’
- Test the voltage supply to the pump motor
- Check the operation of the transmission control module
How to fix DTC P276B on BMW
To fix DTC P276B on a BMW, the following steps may be taken:
- Replace the faulty Electric/Auxiliary Transmission Fluid Pump ‘B’
- Repair any wiring or connector issues
- Ensure proper voltage supply to the pump motor
- If necessary, replace the transmission control module
How to erase DTC P276B on BMW
After addressing the underlying issue causing DTC P276B on a BMW, the fault codes can be cleared using a diagnostic scanner. This will erase the code from the vehicle’s memory and 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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