P253E Fault Code

PTO Sense Circuit Intermittent/Erratic

• What does that mean?
• Symptoms
• Causes
• Solutions

The P253E fault code indicates an issue with the Power Take-Off (PTO) sense circuit, which can intermittently fail or show erratic behavior. This code is generally found in vehicles equipped with PTO systems that help in operating auxiliary equipment, such as in trucks or heavy-duty vehicles. Understanding this code is essential for maintaining proper vehicle function.

What are the symptoms of the P253E code?

• Inconsistent operation of PTO equipment
• Dashboard warning lights activated
• Possible engine performance issues
• Difficulty engaging or disengaging PTO
• Erratic RPM readings related to PTO operation

What causes the P253E code?

• Faulty PTO switch
• Damaged wiring or connectors in the PTO circuit
• Poor ground connections
• PCM (Powertrain Control Module) failure
• Intermittent electrical issues due to vibration or moisture

How to fix P253E?

• Inspect the PTO switch for proper operation and replace if faulty.
• Check the wiring and connectors for damage or corrosion; repair or replace as needed.
• Ensure all ground connections are secure and free of rust.
• If necessary, test the PCM for faults and consider reprogramming or replacement.