AutoCodes – GMC – B2580 2016 GMC Sierra

B2580 2016 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 2016 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 212

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 2016 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 2016 GMC Sierra - Headlamp High Beam Control Circuit - AutoCodes.com — B2580 2016 GMC Sierra Code - Headlamp High Beam Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2580 2016 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 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 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 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.

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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 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code B2580 in a 2016 GMC Sierra related to the Headlamp High Beam Control Circuit?

- The common symptoms include malfunctioning high beam headlights, flickering lights, or complete failure of the high beam function.

2. What are the possible causes of OBDII code B2580 in a 2016 GMC Sierra?

- The code B2580 may be triggered by issues such as a faulty high beam control switch, damaged wiring or connectors, a defective high beam relay, or a problem with the high beam control module.

3. How can I diagnose the cause of OBDII code B2580 in my 2016 GMC Sierra?

- To diagnose the issue, you can start by checking the high beam control switch for proper operation, inspecting the wiring and connectors for any damage, testing the high beam relay, and using a diagnostic tool to scan for specific fault codes.

4. What are some repair tips for resolving OBDII code B2580 in a 2016 GMC Sierra?

- Repair tips may include replacing a faulty high beam control switch, repairing or replacing damaged wiring or connectors, testing and replacing the high beam relay if necessary, or reprogramming the high beam control module.

5. Can I drive my 2016 GMC Sierra with OBDII code B2580 related to the Headlamp High Beam Control Circuit?

- It is generally not recommended to drive with malfunctioning high beams as it can affect visibility and safety, especially during nighttime or adverse weather conditions. It is advisable to address the issue promptly.

6. How much does it typically cost to repair OBDII code B2580 in a 2016 GMC Sierra?

- The cost of repairing OBDII code B2580 can vary depending on the specific cause of the issue and whether you choose to address it yourself or seek professional help. Costs may include parts and labor.

7. Is OBDII code B2580 a serious issue in a 2016 GMC Sierra?

- While the severity of the issue may vary, OBDII code B2580 related to the Headlamp High Beam Control Circuit should not be ignored, as it can affect the proper functioning of the high beam headlights, compromising visibility and safety.

8. Can resetting the OBDII system clear code B2580 in a 2016 GMC Sierra?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code B2580 is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.

9. Are there any recalls or technical service bulletins related to OBDII code B2580 in a 2016 GMC Sierra?

- It is recommended to check with GMC dealerships or online resources for any recalls or technical service bulletins related to OBDII code B2580 in a 2016 GMC Sierra, as manufacturers may provide solutions or assistance for specific issues.

10. Can a DIY enthusiast repair OBDII code B2580 in a 2016 GMC Sierra?

- Depending on the specific cause of the issue, some DIY enthusiasts with the necessary skills and tools may be able to repair OBDII code B2580 by following repair guides, consulting service manuals, and using diagnostic equipment.