AutoCodes – GMC – P260B 2018 GMC Sierra

P260B 2018 GMC Sierra Code - Power Take-Off Relay 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: P260B 2018 GMC Sierra indicates Power Take-Off Relay 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 161

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 P260B 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 P260B 2018 GMC Sierra - Power Take-Off Relay Control Circuit Low Voltage - AutoCodes.com — P260B 2018 GMC Sierra Code - Power Take-Off Relay Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P260B 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 P260B 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 P260B 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 P260B 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 P260B 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P260B in a 2018 GMC Sierra?

The common symptoms of code P260B include illuminated Check Engine Light, power take-off (PTO) system malfunctions, and potential drivability issues.

2. What does the OBDII code P260B for a 2018 GMC Sierra indicate?

Code P260B indicates a low voltage condition in the power take-off (PTO) relay control circuit of the vehicle.

3. What are the possible causes of OBDII code P260B in a 2018 GMC Sierra?

Possible causes of code P260B include a faulty power take-off (PTO) relay, damaged wiring or connectors in the circuit, low battery voltage, or a defective PCM.

4. How can I diagnose the OBDII code P260B in a 2018 GMC Sierra?

Diagnosing code P260B involves checking the power take-off (PTO) relay, inspecting the wiring and connectors for damage, testing battery voltage, and using a diagnostic scan tool to gather data from the PCM.

5. Can I continue driving my 2018 GMC Sierra with OBDII code P260B?

It's not recommended to continue driving your vehicle with code P260B, as it can lead to potential PTO system failures and affect drivability. It's best to address the issue promptly.

6. How can I repair OBDII code P260B in my 2018 GMC Sierra?

Repairing code P260B may involve replacing the faulty power take-off (PTO) relay, repairing damaged wiring or connectors, ensuring proper battery voltage, and resetting the fault codes using a diagnostic scan tool.

7. Is it necessary to reset the OBDII code P260B after making repairs in a 2018 GMC Sierra?

Yes, it's important to clear the code P260B after making repairs to reset the Check Engine Light and ensure the issue has been resolved successfully.

8. Can a DIY enthusiast fix OBDII code P260B in a 2018 GMC Sierra?

Depending on your skill level and access to tools, a DIY enthusiast may be able to address code P260B by following repair guides and using diagnostic equipment. However, seeking professional help is recommended for complex issues.

9. How much does it cost to repair OBDII code P260B in a 2018 GMC Sierra?

The cost of repairing code P260B can vary based on the specific cause of the issue, labor rates, and parts needed. It's advisable to consult a mechanic for a more accurate estimate.

10. How often does OBDII code P260B occur in a 2018 GMC Sierra?

The occurrence of code P260B can vary depending on the vehicle's usage, maintenance history, and other factors. It's considered a relatively uncommon code but should be addressed promptly to prevent further issues.