AutoCodes – Buick – B260E Buick

B260E Buick Code - Right Daytime Running Lamps Control Circuit

Quick Answer

The ambient light sensor is used to monitor outside lighting conditions. Common causes include Faulty Right Daytime Running Lamps, Right Daytime Running Lamps harness is open or shorted, Right Daytime Running Lamps 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: B260E Buick indicates Right Daytime Running Lamps Control Circuit.
Common causes: Common causes include Faulty Right Daytime Running Lamps, Right Daytime Running Lamps harness is open or shorted, Right Daytime Running Lamps 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 492

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 29, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B260E Buick Description

The ambient light sensor is used to monitor outside lighting conditions. The ambient light sensor provides a voltage signal that will vary between 0.2 and 4.9 V depending on outside lighting conditions. The Body Control Module (BCM) provides a 5 V reference signal to the ambient light sensor and the Heating, Ventilation, and Air Conditioning (HVAC) Module provides a low reference ground. The BCM monitors the ambient light sensor signal circuit to determine if outside lighting conditions are correct for either daytime running lamps or automatic lamp control when the headlamp switch is in the AUTO position. In daylight conditions, the BCM will command the designated daytime running lamps ON. During low light conditions, the BCM will command the low beam headlamps ON. Any function or condition that turns on the headlamps will cancel daytime running lamps operation. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the right park/daytime running lamp control circuit.

OBDII Code B260E Buick - Right Daytime Running Lamps Control Circuit - AutoCodes.com — B260E Buick Code - Right Daytime Running Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B260E Buick?

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

How to Fix the DTC B260E 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 B260E 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 B260E Buick Code

1. What does the OBDII code B260E mean on a Buick?

The B260E code indicates an issue with the Right Daytime Running Lamps (DRL) Control Circuit, typically caused by a fault in the wiring, bulb, or control module.

2. What are common symptoms of the B260E code?

Symptoms include the right daytime running lamp not working, a dashboard warning light, or intermittent operation of the right DRL.

3. What causes the B260E code to trigger?

Common causes include a burnt-out right DRL bulb, damaged wiring or connectors, a faulty DRL control module, or corrosion in the circuit.

4. Can I still drive my Buick with the B260E code?

Yes, you can drive the vehicle, but the right daytime running lamp will not function, which could reduce visibility or safety in certain conditions.

5. How do I diagnose the B260E code on my Buick?

Check the right DRL bulb for damage, inspect the wiring and connectors for corrosion or breaks, and use a multimeter to test the circuit continuity.

6. How do I fix the B260E code?

Start by replacing the right DRL bulb if itâ€™s burned out. If the issue persists, repair or replace damaged wiring, connectors, or the DRL control module.

7. How much does it cost to repair the B260E code?

Costs vary depending on the issue. A bulb replacement may cost $10-$50, while wiring repairs or module replacement could exceed $200.

8. Can a blown fuse cause the B260E code?

Yes, a blown fuse in the DRL system can cause the code. Check the fuse box and replace any blown fuse related to the DRL circuit.

9. Is the B260E code specific to Buicks?

While B260E is a manufacturer-specific code for Buick and some GM vehicles, the issue it describes could occur in other vehicles with similar systems.

10. Do I need a professional to fix the B260E code?

Simple fixes like replacing a bulb or fuse can be done by most car owners. However, more complex repairs involving wiring or modules may require professional assistance.