BMW DTC P251D – PTO Engine Shutdown Circuit/Open
DTC P251D meaning on BMW
DTC P251D on a BMW refers to the PTO (Power Take-Off) Engine Shutdown Circuit/Open. This diagnostic trouble code indicates that there is an open circuit in the PTO engine shutdown system, preventing the proper operation of the system.
BMW DTC P251D symptoms
Symptoms of DTC P251D on a BMW may include:
- Engine stalling when the PTO is engaged
- Loss of power to the PTO system
- Warning lights on the dashboard
BMW DTC P251D causes
Common causes of DTC P251D on a BMW include:
- Faulty PTO engine shutdown relay
- Open or short circuit in the wiring harness
- Defective PTO engine shutdown switch
BMW DTC P251D seriousness
The seriousness of DTC P251D on a BMW depends on the driving conditions and the frequency of occurrence. If left unresolved, it can lead to engine stalling and potential safety hazards.
How to diagnose DTC P251D on BMW
To diagnose DTC P251D on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the PTO engine shutdown relay for proper operation
- Check the wiring harness for any open or short circuits
- Test the PTO engine shutdown switch for continuity
How to fix DTC P251D on BMW
To fix DTC P251D on a BMW, you can try the following:
- Replace the faulty PTO engine shutdown relay
- Repair any open or short circuits in the wiring harness
- Replace the defective PTO engine shutdown switch
How to erase DTC P251D on BMW
To erase DTC P251D on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer system. Once the issue has been resolved and the repairs have been made, you can reset the codes to turn off the warning lights.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.