AutoCodes – GMC – P260A 2018 GMC Sierra

P260A 2018 GMC Sierra Code - Power Take-Off Relay Control Circuit

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: P260A 2018 GMC Sierra indicates Power Take-Off Relay Control Circuit.
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 266

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 P260A 2018 GMC Sierra 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 relay coil control circuit that is above or below a predetermined voltage threshold.

OBDII Code P260A 2018 GMC Sierra - Power Take-Off Relay Control Circuit - AutoCodes.com — P260A 2018 GMC Sierra Code - Power Take-Off Relay Control Circuit

What does this mean?

What are the Possible Causes of the DTC P260A 2018 GMC Sierra?

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 P260A 2018 GMC Sierra?

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 P260A 2018 GMC Sierra 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 P260A 2018 GMC Sierra code?

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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 P260A 2018 GMC Sierra Code

1. What does OBDII code P260A on a 2018 GMC Sierra indicate?

The P260A code specifically refers to a fault in the Power Take-Off (PTO) Relay Control Circuit.

2. What are common symptoms of the P260A code in a 2018 GMC Sierra?

Common symptoms include the check engine light being illuminated, reduced engine power, and potential issues with the vehicle's PTO system.

3. What can cause the P260A code to trigger in a 2018 GMC Sierra?

Possible causes of the P260A code include a faulty PTO relay, damaged wiring or connectors in the circuit, or a malfunction in the PTO control module.

4. How serious is the P260A code in a 2018 GMC Sierra?

While the vehicle may still be operable with the P260A code, it is important to address the issue promptly to prevent potential damage to the PTO system or other related components.

5. How can I diagnose the P260A code in my 2018 GMC Sierra?

Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the PTO relay and related components, and testing the circuit for continuity and proper voltage.

6. Can I continue driving my 2018 GMC Sierra with the P260A code present?

It is recommended to limit driving when the P260A code is active to prevent any further damage to the PTO system. Seek professional assistance for a proper diagnosis and repair.

7. Is it possible to reset the P260A code in a 2018 GMC Sierra?

Resetting the code without addressing the underlying issue will not resolve the problem. After repairs are made, a scan tool can be used to clear the code and reset the check engine light.

8. What are the repair options for fixing the P260A code in a 2018 GMC Sierra?

Repair options may include replacing the faulty PTO relay, repairing damaged wiring or connectors, or addressing any issues with the PTO control module as needed.

9. Can weather conditions affect the occurrence of the P260A code in a 2018 GMC Sierra?

Extreme temperatures or moisture can potentially impact the operation of the PTO relay and circuit, leading to the triggering of the P260A fault code.

10. How can regular maintenance help prevent the P260A code in a 2018 GMC Sierra?

Regularly inspecting and maintaining the PTO system, including checking wiring integrity and relay functionality, can help prevent issues that may trigger the P260A fault code.