OBD Guide

P251A

PTO Enable Switch Circuit/Open

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • PTO system does not turn on
  • Check Engine Light Is On
  • ECU memory error
  • Reducing the power of additional equipment
  • Intermittent PTO System Operation

Causes

  • Open in PTO switch circuit
  • Short circuit in the circuit
  • Faulty PTO switch
  • Wiring Harness Problems
  • Control unit malfunction

How to Fix

  1. Check PTO switch circuit continuity
  2. Check PTO switch resistance
  3. Inspect the wiring harness for damage
  4. Check connections and contacts
  5. Replace PTO switch if necessary

Related codes

Error P251A by Vehicle Brand