AutoCodes – GMC – P260B 2016 GMC Sierra

P260B 2016 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 2016 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 134

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 2016 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 2016 GMC Sierra - Power Take-Off Relay Control Circuit Low Voltage - AutoCodes.com — P260B 2016 GMC Sierra Code - Power Take-Off Relay Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P260B 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra Code

1. What does the OBDII code P260B mean on a 2016 GMC Sierra?

The code P260B indicates a low voltage issue in the Power Take-Off (PTO) Relay Control Circuit, which impacts the operation of auxiliary equipment driven by the PTO system.

2. What are common symptoms of the P260B code on a 2016 GMC Sierra?

Symptoms may include a non-functional PTO system, illuminated check engine light, reduced auxiliary equipment performance, or difficulty engaging the PTO.

3. What causes the P260B code to appear on a 2016 GMC Sierra?

Common causes include a faulty PTO relay, damaged or corroded wiring, a bad connection in the relay circuit, or a failing control module.

4. How can I diagnose the P260B code on my 2016 GMC Sierra?

Start by inspecting the PTO relay and its wiring for damage or corrosion, check for loose connections, and use a multimeter to test for proper voltage in the relay circuit.

5. Can a bad PTO relay trigger the P260B code on a 2016 GMC Sierra?

Yes, a faulty PTO relay is one of the most common causes of the P260B code.

6. Is it safe to drive my 2016 GMC Sierra with the P260B code active?

While the truck may still operate, the PTO system may not function properly, which could affect auxiliary equipment use. Itâ€™s best to address the issue promptly to avoid further damage.

7. How do I fix the P260B code on a 2016 GMC Sierra?

Repairs may include replacing the PTO relay, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming the control module if necessary.

8. How much does it cost to repair the P260B code on a 2016 GMC Sierra?

Repair costs vary depending on the cause, but replacing a PTO relay typically costs $50-$150, while wiring repairs or control module issues may cost more.

9. Can low battery voltage cause the P260B code on a 2016 GMC Sierra?

Yes, insufficient battery voltage can lead to a low voltage condition in the PTO relay circuit, potentially triggering the P260B code.

10. Do I need special tools to diagnose the P260B code on a 2016 GMC Sierra?

Basic tools like a multimeter and an OBDII scanner can help diagnose the issue. In some cases, more advanced tools may be required to test the control module or reprogram it.