AutoCodes – GMC – B2560 2017 GMC Sierra

B2560 2017 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 2017 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 160

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 2017 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 2017 GMC Sierra - Cargo Lamps Control Circuit - AutoCodes.com — B2560 2017 GMC Sierra Code - Cargo Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2560 2017 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 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 B2560 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.

Need more information about the B2560 2017 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 B2560 2017 GMC Sierra Code

What does OBDII code B2560 mean for a 2017 GMC Sierra?

OBDII code B2560 indicates a problem with the cargo lamps control circuit, which may affect the operation of the cargo area lights.

What are the common symptoms associated with the B2560 code?

Common symptoms include malfunctioning cargo lamps, cargo lights staying on or not turning on, and potential issues with other related electrical components.

What could cause the B2560 code to trigger in a GMC Sierra?

Possible causes include a faulty cargo lamp switch, damaged wiring or connectors in the circuit, or a malfunctioning body control module (BCM).

How can I diagnose the issue related to OBDII code B2560?

Start by inspecting the cargo lamp switch and wiring for damage. Use a multimeter to check for proper voltage and continuity in the circuit. A scan tool can help verify the code and check for related codes.

Are there any common fixes for the B2560 code?

Common fixes include replacing a faulty cargo lamp switch, repairing damaged wiring or connectors, and reprogramming or replacing the BCM if necessary.

Can I drive my 2017 GMC Sierra with the B2560 code?

While it may be safe to drive, you should address the issue soon to restore proper functionality of the cargo lamps and prevent potential electrical problems.

Will resetting the code fix the problem?

Resetting the code may clear the error temporarily, but it won't fix the underlying issue. Diagnostic steps should be taken to resolve the cause of the code.

Is the B2560 code specific to GMC Sierra vehicles?

No, B2560 is a generic OBDII code that can apply to various vehicles, but the specifics of the cargo lamps control circuit may vary by model and manufacturer.

How much does it typically cost to repair the B2560 code issue?

Repair costs can vary widely depending on the cause, but you might expect to pay anywhere from $100 to $500, depending on whether it involves simple wiring repairs or more complex module replacements.