P255APTO Speed Selector Sensor/Switch 2 Circuit/Open
- Generic OBD-II code · Powertrain
- How the car detects it
- P255A belongs to the second PTO speed selector input, which lets the operator call up a further preset working speed in addition to selector 1. The controller finds no valid state on this line: a wire is broken, a connector is off, or the switch contact never closes. A real example of such a second input is the VSIM module of 2017 Ram chassis cabs, where grounding the PTO idle speed 2 wire (W542) selects Remote RPM Preset 2; it overrides preset 3 but gives way to preset 1. With that wire open, the second preset simply cannot be reached while preset 1 still works. No manufacturer publishes P255A. P254A is the same fault on selector 1; P255B to P255E describe the other failure types of selector 2.
- What you may notice
- Second preset speed unavailable
- Selector 1 presets still work
- Likely causes
- LikelyBroken wire between selector 2 and the module
- PossibleUpfitter connector for selector 2 not mated
- PossibleSelector 2 contact no longer closes
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.