Powertrain
generic / SAE
P251F
PTO Engine Shutdown Circuit High
The PTO engine-shutdown command line reads stuck high — typically a short to battery voltage. The ECM cannot pulse the line low to acknowledge a shutdown request, so the operator-side safety chain is effectively disabled.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 1F
Possible causes
- Shutdown wire shorted to battery voltage high
- Connector pins corroded - high contact resistance low
- Supply wire pinched against B+ source low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 60–350 €
- Estimated time: 0.3–1.5 h
- Component: pto shutdown circuit
- MIL / check engine light
Sources
References
sae:J2012