P251D

PTO Engine Shutdown Circuit/Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–56 (est.)

Symptoms

Inability to activate PTO
Spontaneous PTO shutdown
Malfunction indicator light comes on
Reduced engine power
Engine speed limit

Causes

Open or short circuit in PTO circuit
Faulty PTO trip relay
Problems with the engine control unit
Oxidation of contacts in connectors
Mechanical damage to wiring

How to Fix

Check wiring continuity in PTO circuit
Test PTO trip relay
Check contacts in system connectors
Scan the control unit for other errors
Replace damaged components if necessary

Related codes

P251E P251F P2520