AutoCodes – Buick – B2601 Buick

B2601 Buick Code - DRL Relay Control Circuit Shorted To Ground

Quick Answer

The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: B2601 Buick indicates DRL Relay Control Circuit Shorted To Ground.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 619

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 Jan 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2601 Buick Description

The Daytime Running Lamps (DRL) Relay is controlled by the Body Control Module (BCM). Ignition positive voltage is applied to the DRL relay coil. The BCM grounds the DRL relay control circuit in order to turn on the DRL relay. When the DRL relay control circuit becomes shorted to ground, DTC B2601 is set.

OBDII Code B2601 Buick - DRL Relay Control Circuit Shorted To Ground - AutoCodes.com — B2601 Buick Code - DRL Relay Control Circuit Shorted To Ground

What does this mean?

What are the Possible Causes of the DTC B2601 Buick?

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

How to Fix the DTC B2601 Buick?

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 B2601 Buick 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 B2601 Buick Code

1. What are the common symptoms of OBDII code B2601 in a Buick related to the DRL Relay Control Circuit Shorted To Ground?

- The common symptoms may include inoperative daytime running lights (DRL), flickering DRL lights, or a warning light on the dashboard.

2. What are the possible causes of the DRL Relay Control Circuit Shorted To Ground in a Buick?

- The causes can range from a faulty DRL relay, a short circuit in the wiring harness, a malfunctioning light control module, or a damaged DRL bulb.

3. How can I diagnose the DRL Relay Control Circuit Shorted To Ground issue in my Buick?

- You can start by inspecting the DRL relay, checking the wiring for any visible damage, testing the light control module, and ensuring the DRL bulb is functioning properly.

4. Can I drive my Buick with the OBDII code B2601 triggered?

- It is not recommended to drive your Buick with the DRL Relay Control Circuit Shorted To Ground issue as it may affect the visibility of your vehicle to other drivers, especially in low-light conditions.

5. How can I repair the DRL Relay Control Circuit Shorted To Ground problem in my Buick?

- Depending on the exact cause, you may need to replace the DRL relay, repair the wiring harness, replace the light control module, or install a new DRL bulb to resolve the issue.

6. Is it possible to reset the OBDII code B2601 in a Buick without fixing the underlying problem?

- While you can reset the code using an OBDII scanner, it is crucial to address the root cause of the issue to prevent it from reoccurring and ensure the proper functioning of the DRL system.

7. Will fixing the DRL Relay Control Circuit Shorted To Ground issue improve my Buick's overall safety?

- Yes, resolving this issue will restore the proper functioning of the daytime running lights, which play a crucial role in enhancing the visibility of your vehicle to other motorists, thus improving overall safety.

8. Can extreme weather conditions contribute to the DRL Relay Control Circuit Shorted To Ground problem in a Buick?

- Yes, extreme weather conditions like excessive heat or moisture can potentially damage the wiring or components associated with the DRL system, leading to the triggering of OBDII code B2601.

9. How much can I expect to pay for repairing the DRL Relay Control Circuit Shorted To Ground issue in my Buick?

- The cost of repairs can vary depending on the exact cause of the problem, but it is advisable to consult with a professional mechanic for an accurate diagnosis and cost estimate.

10. Are there any preventative measures I can take to avoid encountering the DRL Relay Control Circuit Shorted To Ground problem in my Buick?

- Regularly inspecting the DRL system, ensuring proper maintenance of electrical components, and addressing any issues promptly can help prevent the occurrence of the DRL relay control circuit shorted to ground problem in your Buick.