AutoCodes – Chevrolet – P251E 2015 Chevrolet Silverado

P251E 2015 Chevrolet Silverado Code - Power Take-Off Engine Shutdown Control Circuit Low Voltage

Quick Answer

The Power Take-Off (PTO) is an upfitter integrated system that allows the user to create an auxiliary power source. Common causes include Faulty Power Take-Off (PTO) Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off Control Module 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: P251E 2015 Chevrolet Silverado indicates Power Take-Off Engine Shutdown Control Circuit Low Voltage.
Common causes: Common causes include Faulty Power Take-Off (PTO) Control Module, Power Take-Off Control Module harness is open or shorted, Power Take-Off Control Module 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 348

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 Sep 21, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P251E 2015 Chevrolet Silverado Description

The Power Take-Off (PTO) is an upfitter integrated system that allows the user to create an auxiliary power source. The PTO system specifically controls engine speed to values higher than normal base idle, PTO load relay engagement, and remote starting and shutdown of the engine. When the operator requests PTO using either the PTO switch or PTO remote, the engine RPM will increase to a default standby speed. The Engine Control Module (ECM) converts the data from the engine speed sensor to a 2 pulses/engine revolution signal. When PTO is engaged, the power take-off control module sends a serial data message to the ECM requesting engine speeds, in response to signals from the PTO switch or remote.
The Diagnostic Trouble Code (DTC) will be set when the Power Take-Off Control Module detects a fault on the PTO engine shutdown control circuit that is above or below a predetermined voltage threshold.

OBDII Code P251E 2015 Chevrolet Silverado - Power Take-Off Engine Shutdown Control Circuit Low Voltage - AutoCodes.com — P251E 2015 Chevrolet Silverado Code - Power Take-Off Engine Shutdown Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P251E 2015 Chevrolet Silverado?

Faulty Power Take-Off (PTO) Control Module
Power Take-Off Control Module harness is open or shorted
Power Take-Off Control Module circuit poor electrical connection

How to Fix the DTC P251E 2015 Chevrolet Silverado?

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 P251E 2015 Chevrolet Silverado 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 P251E 2015 Chevrolet Silverado code?

Need more information on how to fix the P251E 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P251E 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P251E in a 2015 Chevrolet Silverado?

- Common symptoms include the vehicle going into reduced power mode, the power take-off system not functioning properly, and potential stalling of the engine.

2. What does the OBDII code P251E indicate in a 2015 Chevrolet Silverado?

- The code P251E indicates a low voltage condition in the power take-off engine shutdown control circuit of the vehicle.

3. What are possible causes of OBDII code P251E in a 2015 Chevrolet Silverado?

- Possible causes include a faulty power take-off engine shutdown control module, damaged wiring or connectors in the circuit, or a low voltage issue within the system.

4. How can I diagnose the OBDII code P251E in my 2015 Chevrolet Silverado?

- Diagnosis involves using a scan tool to retrieve the code, inspecting the power take-off system components for any visible damage, and testing the voltage levels in the circuit.

5. Can I still drive my 2015 Chevrolet Silverado with the P251E code present?

- It is not recommended to drive the vehicle with the P251E code present, as it can lead to potential engine stalling and other safety hazards.

6. How can I repair OBDII code P251E in my 2015 Chevrolet Silverado?

- Repair methods may include replacing the power take-off engine shutdown control module, repairing or replacing damaged wiring or connectors, and ensuring proper voltage levels in the circuit.

7. Will resetting the OBDII code P251E in my 2015 Chevrolet Silverado make it go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear.

8. Is it safe to continue using the power take-off system in my 2015 Chevrolet Silverado with the P251E code?

- It is not safe to use the power take-off system if the P251E code is present, as it indicates a potential low voltage issue that can lead to system failure.

9. Can a DIY enthusiast fix OBDII code P251E in a 2015 Chevrolet Silverado?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the P251E code, but it is recommended to seek professional help for proper diagnosis and repair.

10. How much does it typically cost to repair OBDII code P251E in a 2015 Chevrolet Silverado?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $200 to $500 for parts and labor to address the P251E code in a 2015 Chevrolet Silverado.