AutoCodes – GMC – B260E 2018 GMC Sierra

B260E 2018 GMC Sierra 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 2018 GMC Sierra 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 149

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 2018 GMC Sierra 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 2018 GMC Sierra - Right Daytime Running Lamps Control Circuit - AutoCodes.com — B260E 2018 GMC Sierra Code - Right Daytime Running Lamps Control Circuit

What does this mean?

What are the Possible Causes of the DTC B260E 2018 GMC Sierra?

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 2018 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B260E 2018 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.

Need more information about the B260E 2018 GMC Sierra code?

Need more information on how to fix the B260E 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code B260E in a 2018 GMC Sierra related to the Right Daytime Running Lamps Control Circuit?

The common symptoms include the right daytime running lamp not functioning, or flickering unexpectedly.

2. What are the possible causes of OBDII code B260E in a 2018 GMC Sierra?

Possible causes include a faulty daytime running lamp bulb, a wiring issue in the right lamp circuit, or a malfunctioning control module.

3. How can I diagnose the Right Daytime Running Lamps Control Circuit issue in my 2018 GMC Sierra?

Start by visually inspecting the right daytime running lamp for any visible damage. Check the wiring and connectors for any signs of wear or corrosion. Use a multimeter to test the continuity of the circuit.

4. Can a DIY enthusiast repair the OBDII code B260E in a 2018 GMC Sierra?

Depending on the exact cause of the issue, a DIY enthusiast with some electrical knowledge may be able to repair the problem by replacing the faulty component or repairing the wiring.

5. Is it safe to continue driving with the Right Daytime Running Lamps Control Circuit issue in my 2018 GMC Sierra?

It is not recommended to drive with a malfunctioning daytime running lamp, as it can impact visibility and compromise safety, especially during low-light conditions.

6. How much does it typically cost to repair OBDII code B260E in a 2018 GMC Sierra at a professional auto repair shop?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can a faulty control module cause OBDII code B260E in a 2018 GMC Sierra?

Yes, a malfunctioning control module that controls the right daytime running lamp circuit can trigger the B260E code.

8. Are there any recalls or technical service bulletins related to OBDII code B260E in a 2018 GMC Sierra?

It's recommended to check with the manufacturer or a GMC dealership to inquire about any recalls or technical service bulletins related to this specific OBDII code.

9. Will resetting the OBDII system clear the B260E code in a 2018 GMC Sierra?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

10. How can I prevent OBDII code B260E from occurring in my 2018 GMC Sierra in the future?

Regularly inspect and maintain the daytime running lamp system, including checking the bulbs, wiring, and connectors for any issues. Address any problems promptly to prevent the recurrence of the B260E code.