AutoCodes – GMC – B2580 2015 GMC Sierra

B2580 2015 GMC Sierra Code - Headlamp High Beam Control Circuit

Quick Answer

The high beam and flash-to-pass functions are contained within the turn signal/multifunction switch. Common causes include Faulty Headlamp High Beam Relay, Headlamp High Beam Relay harness is open or shorted, Headlamp High Beam 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: B2580 2015 GMC Sierra indicates Headlamp High Beam Control Circuit.
Common causes: Common causes include Faulty Headlamp High Beam Relay, Headlamp High Beam Relay harness is open or shorted, Headlamp High Beam 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 216

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 26, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2580 2015 GMC Sierra Description

The high beam and flash-to-pass functions are contained within the turn signal/multifunction switch. The Body Control Module (BCM) provides the turn signal/multifunction switch with two signal circuits, the high beam signal circuit, and the flash-to-pass signal circuit. When the low beam headlamps are ON and the turn signal/multifunction switch is placed in the high beam position, ground is applied to the BCM through the high beam signal circuit. The BCM responds to the high beam request by applying ground to the high beam relay control circuit which energizes the high beam relay. With the high beam relay energized, the switch contacts close allowing battery voltage to flow through the high beam fuse to the high beam control circuits illuminating the high beam headlamps.

OBDII Code B2580 2015 GMC Sierra - Headlamp High Beam Control Circuit - AutoCodes.com — B2580 2015 GMC Sierra Code - Headlamp High Beam Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2580 2015 GMC Sierra?

Faulty Headlamp High Beam Relay
Headlamp High Beam Relay harness is open or shorted
Headlamp High Beam Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2580 2015 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 does this mean?

Code Tech Notes

B2580:01 High Beam Control Circuit Short to Battery
B2580:02 High Beam Control Circuit Short to Ground
B2580:04 High Beam Control Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2580 2015 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 B2580 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B2580 in a 2015 GMC Sierra related to the Headlamp High Beam Control Circuit?

- Common symptoms include high beam headlights not working, high beams stuck in the on position, or high beams flickering intermittently.

2. What are the possible causes of OBDII code B2580 in a 2015 GMC Sierra?

- Possible causes include a faulty high beam control switch, damaged wiring or connectors in the high beam circuit, or a malfunctioning high beam relay.

3. How can I diagnose the OBDII code B2580 in a 2015 GMC Sierra?

- Diagnose the code by visually inspecting the high beam control switch, checking for any damaged wiring or connectors, and testing the high beam relay for proper functionality.

4. Can I repair OBDII code B2580 in a 2015 GMC Sierra on my own?

- Depending on your automotive repair skills, you may be able to repair the issue yourself by replacing a faulty high beam control switch, repairing damaged wiring, or replacing a malfunctioning high beam relay.

5. Is it safe to continue driving with OBDII code B2580 in a 2015 GMC Sierra?

- It is not recommended to drive with a malfunctioning high beam control circuit as it can affect visibility at night and compromise road safety. It is best to address the issue promptly.

6. How much does it typically cost to repair OBDII code B2580 in a 2015 GMC Sierra at a professional repair shop?

- Repair costs can vary depending on the exact cause of the issue and the labor rates of the repair shop. It is advisable to get a diagnostic assessment to determine the specific repair cost.

7. Are there any recalls or technical service bulletins related to OBDII code B2580 in a 2015 GMC Sierra?

- It is recommended to check with a GMC dealership or online resources for any recalls or technical service bulletins related to the Headlamp High Beam Control Circuit issue in the 2015 GMC Sierra.

8. Will resetting the OBDII code B2580 in a 2015 GMC Sierra make the issue go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying problem causing the Headlamp High Beam Control Circuit issue. It is important to diagnose and repair the root cause.

9. Can extreme weather conditions cause OBDII code B2580 to trigger in a 2015 GMC Sierra?

- Extreme weather conditions, such as moisture or temperature fluctuations, can potentially contribute to electrical issues that trigger OBDII code B2580 in the Headlamp High Beam Control Circuit.

10. How can I prevent OBDII code B2580 from recurring in my 2015 GMC Sierra after repair?

- To prevent the code from recurring, ensure that all repairs are done correctly, use high-quality replacement parts, and perform regular maintenance checks on the high beam control circuit to catch any issues early.