P255EPTO Speed Selector Sensor/Switch 2 Circuit Intermittent/Erratic
- Generic OBD-II code · Powertrain
- How the car detects it
- P255E concerns short dropouts or rapid changes on the PTO speed selector 2 signal that do not match deliberate operation. Selector 2 is often the remote control on the body, close to pumps, booms or spreaders, so vibration, spray water and cable movement hit it harder than an in-cab switch. Ram's 2012 chassis cab guide shows the effect of spurious transitions: in remote mode a quick off-on toggle advances to the next of up to five preset speeds, so a flickering contact can step the engine through speeds nobody asked for. No manufacturer publishes P255E. CARB expects such circuit faults to be monitored continuously. P255A would be a permanent open circuit; P254E is the same symptom on selector 1.
- What you may notice
- Engine steps through preset speeds unexpectedly
- PTO speed unstable while working
- Code appears only under vibration
- Likely causes
- LikelySpray water or moisture in the body-mounted remote switch
- PossibleCable to the remote control flexing at a boom or hinge
- PossibleLoose crimp or terminal in the selector 2 circuit
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €250
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.