BMW DTC P255C – PTO Speed Selector Sensor/Switch 2 Circuit Low
DTC P255C meaning on BMW
The DTC P255C code on a BMW indicates an issue with the PTO (Power Take-Off) Speed Selector Sensor/Switch 2 Circuit registering a low voltage condition. The PTO Speed Selector Sensor/Switch 2 is responsible for monitoring the speed selection in vehicles equipped with a power take-off system.
BMW DTC P255C symptoms
Symptoms of the DTC P255C code on a BMW may include:
- Check Engine Light illuminated on the dashboard
- Loss of power or performance
- Problems engaging or disengaging the power take-off system
BMW DTC P255C causes
Common causes of the DTC P255C code on a BMW include:
- Faulty PTO Speed Selector Sensor/Switch 2
- Wiring issues or poor electrical connections
- Corrosion or damage to sensor components
BMW DTC P255C seriousness
While the DTC P255C code may not always result in immediate drivability issues, it is important to address the underlying problem to prevent potential damage to the power take-off system and ensure proper vehicle operation.
How to diagnose DTC P255C on BMW
To diagnose the DTC P255C code on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault code and related data
- Inspect the PTO Speed Selector Sensor/Switch 2 for any visible damage or corrosion
- Check the wiring and connections for any signs of wear or disconnection
- Test the sensor’s voltage and resistance to determine if it is functioning correctly
How to fix DTC P255C on BMW
To fix the DTC P255C code on a BMW, the following steps may be taken:
- Replace the faulty PTO Speed Selector Sensor/Switch 2
- Repair any damaged wiring or connections
- Clean or replace sensor components affected by corrosion
- Clear the fault code from the vehicle’s computer after repairs have been completed
How to erase DTC P255C on BMW
To erase the DTC P255C code on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s computer. Once the underlying issue has been addressed and repairs have been made, the code can be reset to turn off the Check Engine Light and ensure proper vehicle operation.
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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