AutoCodes – GMC – B2560 2016 GMC Sierra

B2560 2016 GMC Sierra Code - Cargo Lamps Control Circuit

Quick Answer

The cargo lamp relay is always supplied with battery voltage. Common causes include Faulty Cargo Lamp Relay, Cargo Lamp Relay harness is open or shorted, Cargo Lamp Relay 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: B2560 2016 GMC Sierra indicates Cargo Lamps Control Circuit.
Common causes: Common causes include Faulty Cargo Lamp Relay, Cargo Lamp Relay harness is open or shorted, Cargo Lamp Relay 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 219

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 May 25, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2560 2016 GMC Sierra Description

The cargo lamp relay is always supplied with battery voltage. The cargo lamp switch signal circuit is grounded momentarily by pressing the cargo lamp switch. The Body Control Module (BCM) energizes the cargo lamp relay by applying ground to the cargo lamp relay control circuit. When the cargo lamp relay is energized, the relay switch contacts close, and battery voltage is applied through the fuse to the cargo lamp control circuit which illuminates the cargo lamps. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the cargo lamp switch ground circuit.

OBDII Code B2560 2016 GMC Sierra - Cargo Lamps Control Circuit - AutoCodes.com — B2560 2016 GMC Sierra Code - Cargo Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2560 2016 GMC Sierra?

Faulty Cargo Lamp Relay
Cargo Lamp Relay harness is open or shorted
Cargo Lamp Relay circuit poor electrical connection
Faulty Cargo Lamp Switch
Faulty Cargo Lamp
Faulty Body Control Module (BCM)

How to Fix the DTC B2560 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 B2560 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 B2560 2016 GMC Sierra code?

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Need Help with the 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 B2560 2016 GMC Sierra Code

1. What does OBDII code B2560 for a 2016 GMC Sierra Cargo Lamps Control Circuit mean?

This code indicates a malfunction in the control circuit of the cargo lamps in your GMC Sierra.

2. What are the common symptoms of OBDII code B2560 in a 2016 GMC Sierra?

Common symptoms include inoperative cargo lamps, flickering or dim cargo lamps, or a warning light on the dashboard.

3. What are the possible causes of OBDII code B2560 in a 2016 GMC Sierra?

Potential causes include a faulty cargo lamp switch, damaged wiring or connectors, a blown fuse, or a malfunctioning control module.

4. How can I diagnose the issue related to OBDII code B2560 in my 2016 GMC Sierra?

To diagnose the problem, you can start by checking the cargo lamp switch, inspecting the wiring and connectors for any damage, testing the fuse related to the cargo lamps, and scanning the control module for faults.

5. What are some repair tips for resolving OBDII code B2560 in a 2016 GMC Sierra?

Repair tips may include replacing the cargo lamp switch if faulty, repairing or replacing damaged wiring or connectors, checking and replacing the fuse if necessary, and reprogramming or replacing the control module if diagnosed as the issue.

6. Can OBDII code B2560 in a 2016 GMC Sierra be fixed without professional help?

Depending on your automotive repair skills, you may be able to fix the issue yourself by following diagnostic procedures and repair tips. However, if you are unsure or uncomfortable with the process, seeking professional help is recommended.

7. Is it safe to continue driving my 2016 GMC Sierra with OBDII code B2560 unresolved?

It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to ensure proper functionality of the cargo lamps and to prevent any potential electrical issues.

8. How much does it typically cost to repair OBDII code B2560 in a 2016 GMC Sierra?

The cost of repair can vary depending on the specific cause of the issue, parts needed for replacement, labor rates, and whether you choose to fix the problem yourself or seek professional assistance.

9. Are there any preventative measures to avoid OBDII code B2560 in a 2016 GMC Sierra?

Regularly inspecting the cargo lamp system, checking the cargo lamp switch for proper operation, and maintaining the electrical components can help prevent issues that may trigger this code.

10. Can a faulty cargo lamp control circuit impact other systems in a 2016 GMC Sierra?

While the primary impact of a faulty cargo lamp control circuit is on the operation of the cargo lamps, it may also affect related systems or cause electrical issues within the vehicle if left unresolved.