AutoCodes – GMC – P260A 2017 GMC Sierra

P260A 2017 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 2017 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 144

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 2017 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 2017 GMC Sierra - Power Take-Off Relay Control Circuit - AutoCodes.com — P260A 2017 GMC Sierra Code - Power Take-Off Relay Control Circuit

What does this mean?

What are the Possible Causes of the DTC P260A 2017 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 2017 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 2017 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.

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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 2017 GMC Sierra Code

1. What does the OBDII code P260A mean on a 2017 GMC Sierra?

The code P260A indicates an issue with the Power Take-Off (PTO) Relay Control Circuit, which manages the PTO system used for auxiliary power functions.

2. What are the symptoms of a P260A code in a 2017 GMC Sierra?

Common symptoms include the PTO system not engaging, a check engine light, and potential loss of auxiliary power features.

3. What causes the P260A code to appear?

Possible causes include a faulty PTO relay, damaged wiring or connectors in the PTO circuit, or a malfunctioning PCM (Powertrain Control Module).

4. How do I diagnose a P260A code on my GMC Sierra?

Start by inspecting the PTO relay, wiring, and connectors for visible damage. Use a multimeter to check circuit continuity and test the relay for proper function.

5. Can a bad PTO relay cause the P260A code?

Yes, a faulty PTO relay is one of the most common causes of the P260A code.

6. How do I fix the P260A code on a 2017 GMC Sierra?

Repairs may involve replacing the PTO relay, repairing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. Is it safe to drive with a P260A code?

While the truck may still drive, a P260A code can disable the PTO system, potentially affecting auxiliary functions if you rely on them.

8. How much does it cost to repair a P260A code?

Repair costs vary but typically range from $50 to $150 for a PTO relay replacement, with additional costs for wiring repairs or PCM replacement if needed.

9. Can I clear the P260A code without fixing the issue?

Clearing the code without addressing the root cause will result in the code reappearing, as the underlying problem will persist.

10. Do I need a professional mechanic to fix a P260A code?

If you're familiar with electrical systems, you may be able to fix it yourself. However, complex issues like PCM failure may require a professional mechanic.