OBD-II code · Powertrain (generic, extended)
P255D PTO Speed Selector Sensor/Switch 2 Circuit High
PTO speed selector 2 input reads stuck high — short to battery voltage or analog signal pegged at maximum.
Is it safe to drive with P255D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySwitch wire shorted to battery voltage
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Pto Speed Selector 2
Related codes
- P255APTO Speed Selector Sensor/Switch 2 Circuit/Open
- P255BPTO Speed Selector Sensor/Switch 2 Range/Performance
- P255CPTO Speed Selector Sensor/Switch 2 Circuit Low
- P255EPTO Speed Selector Sensor/Switch 2 Circuit Intermittent/Erratic
- P255FA/C Request A Circuit Range/Performance
- P2560Engine Coolant Level Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.