P251B
PTO Enable Switch Circuit Low
P251B is an OBD-II diagnostic trouble code meaning: PTO Enable Switch Circuit Low. Common causes: pto switch failure, open or short circuit in the circuit. Estimated repair cost: $17–56.
Symptoms
- Additional equipment (PTO) does not work
- Check Engine light comes on
- Diagnostic system memory error
- Reduced vehicle functionality
Causes
- PTO switch failure
- Open or short circuit in the circuit
- Poor contact in connectors
- Problems with the control unit
- Wiring corrosion
How to Fix
- Check PTO switch for serviceability
- Inspect wiring and connectors for damage
- Check the voltage in the circuit
- Replace PTO switch if necessary
- Clean contacts from corrosion
Related codes
Error P251B by Vehicle Brand
FAQ
What does the P251B code mean?
P251B is an OBD-II diagnostic trouble code that indicates: PTO Enable Switch Circuit Low
What causes a P251B error code?
The most common causes of P251B include: PTO switch failure; Open or short circuit in the circuit; Poor contact in connectors; Problems with the control unit.
How do I fix a P251B diagnostic trouble code?
To fix P251B: Check PTO switch for serviceability. Inspect wiring and connectors for damage. Check the voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P251B?
Yes, but get it checked soon
How much does it cost to fix P251B?
The estimated repair cost for P251B is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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