OBD-II code · Powertrain (generic, extended)
P253C PTO Sense Circuit Low
The PTO sense input reads stuck low — short to ground or limit switch stuck closed. The ECM may see PTO continuously engaged.
Is it safe to drive with P253C?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySense wire shorted to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
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 Sense Circuit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.