AutoCodes – GMC – B2580 2014 GMC Sierra

B2580 2014 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 2014 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 195

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 2014 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 2014 GMC Sierra - Headlamp High Beam Control Circuit - AutoCodes.com — B2580 2014 GMC Sierra Code - Headlamp High Beam Control Circuit

What does this mean?

What are the Possible Causes of the DTC B2580 2014 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 2014 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 2014 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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B2580 on a 2014 GMC Sierra related to the headlamp high beam control circuit?

- Common symptoms include high beam headlights not functioning properly, flickering high beams, or the high beams staying on constantly.

2. What are the possible causes of OBDII code B2580 on a 2014 GMC Sierra?

- Possible causes may include a faulty high beam control switch, a malfunctioning high beam relay, wiring issues, or a problem with the high beam circuit itself.

3. How can I diagnose the OBDII code B2580 on my 2014 GMC Sierra?

- Diagnosing this code usually involves testing the high beam control switch, checking the high beam relay, inspecting the wiring for any damage or loose connections, and testing the high beam circuit for continuity.

4. What are some tips for repairing OBDII code B2580 on a 2014 GMC Sierra?

- Repair tips may include replacing the faulty high beam control switch, fixing any wiring issues, replacing the high beam relay if necessary, and ensuring all connections are secure and free of corrosion.

5. Can OBDII code B2580 on a 2014 GMC Sierra cause any safety concerns?

- Yes, this code can pose a safety risk as it affects the proper functioning of the high beam headlights, which are essential for visibility during nighttime driving.

6. Is it possible to reset OBDII code B2580 on a 2014 GMC Sierra without making any repairs?

- While clearing the code using an OBDII scanner may temporarily turn off the warning light, it is crucial to address the underlying issue to prevent recurring problems with the high beam control circuit.

7. How much does it typically cost to repair OBDII code B2580 on a 2014 GMC Sierra?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor, with the total repair cost ranging from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B2580 on a 2014 GMC Sierra?

- Depending on the cause of the code, DIY repair may be possible for those with some experience in automotive electrical systems. However, complex issues may require professional diagnosis and repair.

9. Will ignoring OBDII code B2580 on a 2014 GMC Sierra lead to other electrical problems?

- Ignoring this code can potentially lead to further issues with the vehicle's electrical system, impacting the overall functionality of the high beam headlights and potentially causing safety hazards.

10. Is it advisable to continue driving a 2014 GMC Sierra with OBDII code B2580 until it is repaired?

- It is not recommended to drive the vehicle with unresolved OBDII code B2580, as it can compromise the proper operation of the high beam headlights, especially in low-light or nighttime driving conditions.