AutoCodes – Ford – P251D Ford

P251D Ford Code - PTO Engine Shutdown Circuit/Open

Quick Answer

The Powertrain Control Module (PCM) monitors the Power Take Off (PTO) Engine Shutdown circuit. Common causes include Faulty Power Take Off (PTO) Enable Switch, Power Take Off (PTO) Enable Switch harness is open or shorted, Power Take Off (PTO) Enable Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P251D Ford indicates PTO Engine Shutdown Circuit/Open.
Common causes: Common causes include Faulty Power Take Off (PTO) Enable Switch, Power Take Off (PTO) Enable Switch harness is open or shorted, Power Take Off (PTO) Enable Switch circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,282

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P251D Ford Description

The Powertrain Control Module (PCM) monitors the Power Take Off (PTO) Engine Shutdown circuit. The PCM sets the OBDII code when the PTO Engine Shutdown is out of factory specifications.

OBDII Code P251D Ford - PTO Engine Shutdown Circuit/Open - AutoCodes.com — P251D Ford Code - PTO Engine Shutdown Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P251D Ford?

Faulty Power Take Off (PTO) Enable Switch
Power Take Off (PTO) Enable Switch harness is open or shorted
Power Take Off (PTO) Enable Switch circuit poor electrical connection

How to Fix the DTC P251D Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P251D Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P251D Ford code?

Need more information on how to fix the P251D Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P251D Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P251D Ford Code

1. What are the common symptoms of OBDII code P251D in a Ford vehicle?

- Common symptoms include the engine shutting down unexpectedly, especially when the power take-off (PTO) is engaged.

2. What does the OBDII code P251D Ford indicate?

- The code P251D indicates a fault in the PTO Engine Shutdown Circuit/Open, meaning there is an issue with the circuit responsible for shutting down the engine when the PTO is engaged.

3. What are the possible causes of the P251D code in a Ford vehicle?

- Possible causes include a faulty PTO switch, damaged wiring in the PTO circuit, a malfunctioning PTO control module, or a problem with the engine control module.

4. How serious is the P251D OBDII code in a Ford vehicle?

- The P251D code can be serious as it can lead to unexpected engine shutdowns, which can be dangerous, especially if the vehicle is in motion or operating heavy equipment.

5. Can I continue driving my Ford vehicle with the P251D code present?

- It is not recommended to drive the vehicle with the P251D code present as it can pose a safety risk due to potential engine shutdowns.

6. How can I diagnose the P251D code in my Ford vehicle?

- Diagnosing the P251D code typically involves using a diagnostic scanner to retrieve the trouble codes, inspecting the PTO circuit and components, and testing the PTO system for proper functionality.

7. What are some repair tips for fixing the P251D OBDII code in a Ford vehicle?

- Repair tips may include checking and repairing any damaged wiring in the PTO circuit, replacing the PTO switch or control module if faulty, and ensuring proper connections in the circuit.

8. Can I reset the P251D trouble code in my Ford vehicle myself?

- While you can clear the trouble code with a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. Is the P251D code a common issue in Ford vehicles?

- The P251D code is not as common as some other OBDII codes, but it can still occur in Ford vehicles equipped with PTO systems.

10. Should I seek professional help to fix the P251D code in my Ford vehicle?

- It is recommended to seek professional help, especially if you are not familiar with diagnosing and repairing automotive electrical systems, to ensure the issue is properly resolved.