P255B – BMW DTC

BMW DTC P255B – PTO Speed Selector Sensor/Switch 2 Range/Performance

DTC P255B meaning on BMW

The DTC P255B code on a BMW indicates an issue with the PTO (Power Take-Off) Speed Selector Sensor/Switch 2. This code specifically points to a range/performance problem related to this sensor or switch.

BMW DTC P255B symptoms

Symptoms of the DTC P255B code on a BMW may include:

  • Loss of power
  • Transmission shifting issues
  • Engine stalling
  • Decreased fuel efficiency

BMW DTC P255B causes

Common causes of the DTC P255B code on a BMW include:

  • Faulty PTO Speed Selector Sensor/Switch 2
  • Wiring or connection issues
  • Software glitches

BMW DTC P255B seriousness

The DTC P255B code should not be ignored as it can lead to drivability issues and potential safety concerns. It is recommended to address this problem promptly to avoid further damage to the vehicle.

How to diagnose DTC P255B on BMW

To diagnose the DTC P255B code on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes.
  2. Inspect the PTO Speed Selector Sensor/Switch 2 for any visible damage or corrosion.
  3. Check the wiring and connections associated with the sensor/switch.
  4. Perform a functionality test on the sensor/switch using a multimeter.

How to fix DTC P255B on BMW

To fix the DTC P255B code on a BMW, you can try the following solutions:

  1. Replace the faulty PTO Speed Selector Sensor/Switch 2.
  2. Repair any damaged wiring or connections.
  3. Update the vehicle’s software if necessary.

How to erase DTC P255B on BMW

To erase the DTC P255B code on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s system. Once the issue has been addressed and fixed, you can reset the codes to turn off 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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