AutoCodes – GMC – B255F 2015 GMC Sierra

B255F 2015 GMC Sierra Code - Interior Door Handle Backlight Circuit

Quick Answer

The Body Control Module (BCM) supplies battery voltage to accent lighting lamps via the accent lamp control circuit. Common causes include Faulty Interior Door Handle Backlight, Interior Door Handle Backlight harness is open or shorted, Interior Door Handle Backlight 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: B255F 2015 GMC Sierra indicates Interior Door Handle Backlight Circuit.
Common causes: Common causes include Faulty Interior Door Handle Backlight, Interior Door Handle Backlight harness is open or shorted, Interior Door Handle Backlight 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 216

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 25, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B255F 2015 GMC Sierra Description

The Body Control Module (BCM) supplies battery voltage to accent lighting lamps via the accent lamp control circuit. When a door is opened the BCM applies battery voltage to the accent lamp control circuit illuminating all of the accent lighting. The accent lighting will remain illuminated until all doors are closed, and the ignition is OFF. The accent lighting remains illuminated with the ignition ON. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the accent lamp control circuit terminal.

OBDII Code B255F 2015 GMC Sierra - Interior Door Handle Backlight Circuit - AutoCodes.com — B255F 2015 GMC Sierra Code - Interior Door Handle Backlight Circuit

What does this mean?

What are the Possible Causes of the DTC B255F 2015 GMC Sierra?

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

How to Fix the DTC B255F 2015 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

B255F:02 Interior Door Handle Backlight Circuit Short to Ground
B255F:04 Interior Door Handle Backlight Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B255F 2015 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 B255F 2015 GMC Sierra Code

1. What does the OBDII code B255F mean on a 2015 GMC Sierra?

B255F indicates an issue with the Interior Door Handle Backlight Circuit, usually related to a malfunction in the wiring, connectors, or LED backlight itself.

2. What are the common symptoms of code B255F?

Symptoms include the door handle backlight not illuminating, only partially illuminating, or flickering intermittently.

3. What causes the B255F code to activate?

Common causes include a faulty backlight LED, damaged wiring, loose or corroded electrical connections, or a malfunction in the body control module (BCM).

4. How can I diagnose the B255F code?

Start by inspecting the door handle backlight, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity. If no issues are found, the BCM should be tested.

5. Is the B255F code a serious issue?

No, it is not a critical issue since it primarily affects interior lighting, but it can be an annoyance and may indicate electrical problems that could worsen over time.

6. Can I fix the B255F code on my own?

Yes, if you're comfortable with basic electrical diagnostics. Check and repair any damaged wiring or replace the backlight module. If you're unsure, consult a professional.

7. How much does it cost to repair the B255F code?

Repair costs vary depending on the issue. Replacing a faulty backlight may cost $50â€“$150, while BCM repairs or replacements could cost $300â€“$1,000.

8. Will clearing the code with a scan tool fix the issue?

Clearing the code will remove it temporarily, but if the underlying problem isn't addressed, the code will return.

9. Can a faulty BCM cause the B255F code?

Yes, a malfunctioning body control module (BCM) can lead to issues with the door handle backlight circuit, though this is less common.

10. Does the B255F code affect other vehicle functions?

Generally, no. This code specifically pertains to the interior door handle backlight circuit and does not typically impact other functions, unless part of a larger electrical system issue.