BMW DTC P0B01 – Electric/Auxiliary Transmission Fluid Pump Motor Phase U Current Low
DTC P0B01 meaning on BMW
DTC P0B01 on a BMW indicates an issue with the Electric/Auxiliary Transmission Fluid Pump Motor Phase U Current being too low. This code is specific to the electric auxiliary transmission fluid pump motor in the vehicle.
BMW DTC P0B01 symptoms
Symptoms of DTC P0B01 on a BMW may include:
- Transmission shifting issues
- Reduced fuel efficiency
- Warning lights on the dashboard
BMW DTC P0B01 causes
Common causes of DTC P0B01 on a BMW include:
- Faulty electric auxiliary transmission fluid pump motor
- Electrical issues in the pump motor circuit
- Wiring harness problems
BMW DTC P0B01 seriousness
The seriousness of DTC P0B01 on a BMW depends on the extent of the issue. Ignoring this code can lead to further transmission problems and potential drivability issues. It is recommended to address this code promptly to prevent further damage.
How to diagnose DTC P0B01 on BMW
To diagnose DTC P0B01 on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code
- Inspect the electric auxiliary transmission fluid pump motor and its wiring
- Check for any loose connections or damaged components
How to fix DTC P0B01 on BMW
To fix DTC P0B01 on a BMW, the following steps may be taken:
- Replace the faulty electric auxiliary transmission fluid pump motor
- Repair any damaged wiring or connections in the circuit
- Clear the fault code and test drive the vehicle to ensure the issue is resolved
How to erase DTC P0B01 on BMW
To erase DTC P0B01 on a BMW, a diagnostic scanner can be used to clear the fault code from the vehicle’s system. Once the issue has been addressed and fixed, clearing the code will reset the system and turn off the warning lights on the dashboard.
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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