P251F Possible Causes
- Faulty Power Take-Off (PTO) Enable Switch
- Power Take-Off (PTO) Enable Switch Harness is Open or Shorted
- Power Take-Off (PTO) Enable Switch Circuit Poor Electrical Connection
How to Fix Code P251F
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Engine Light On (or Service Engine Soon Warning Light)
P251F Meaning
The Powertrain Control Module (PCM) monitors the Power Take-Off (PTO) engine shutdown circuit. The PCM sets the OBDII code when the PTO engine shutdown is outside factory specifications.