AutoCodes – GMC – B255D 2015 GMC Sierra

B255D 2015 GMC Sierra Code - Passenger Compartment Lamp Control 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 Courtesy Lamp, Courtesy Lamp harness is open or shorted, Courtesy Lamp 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: B255D 2015 GMC Sierra indicates Passenger Compartment Lamp Control Circuit.
Common causes: Common causes include Faulty Courtesy Lamp, Courtesy Lamp harness is open or shorted, Courtesy Lamp 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 146

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 B255D 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 courtesy lamps control circuit terminal.

OBDII Code B255D 2015 GMC Sierra - Passenger Compartment Lamp Control Circuit - AutoCodes.com — B255D 2015 GMC Sierra Code - Passenger Compartment Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B255D 2015 GMC Sierra?

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

How to Fix the DTC B255D 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

B255D:01 Passenger Compartment Lamp Control Circuit Short to Battery
B255D:02 Passenger Compartment Lamp Control Circuit Short to Ground
B255D:04 Passenger Compartment Lamp Control Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B255D 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.

Need more information about the B255D 2015 GMC Sierra 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 B255D 2015 GMC Sierra Code

1. What does the OBDII code B255D mean on a 2015 GMC Sierra?

The B255D code indicates an issue with the Passenger Compartment Lamp Control Circuit, which controls the interior lighting system.

2. What are the common symptoms of the B255D code in a 2015 GMC Sierra?

Symptoms may include interior lights not turning on, flickering, or staying on even when the vehicle is off.

3. What causes the B255D code to appear?

Common causes include a faulty lamp control switch, damaged wiring or connectors, a blown fuse, or a malfunctioning Body Control Module (BCM).

4. Can a blown fuse trigger the B255D code?

Yes, a blown fuse in the interior lighting circuit can cause the B255D code to set.

5. How do you diagnose the B255D code in a 2015 GMC Sierra?

Start by checking the fuses, wiring, and connectors for damage, then use a scan tool to monitor the BCM and test the lamp control circuit.

6. Can a faulty Body Control Module (BCM) cause the B255D code?

Yes, a malfunctioning BCM can fail to control the interior lighting and trigger the B255D code.

7. Is it safe to drive with the B255D code active?

Yes, it is generally safe to drive, but the interior lighting system may not function properly, which can be inconvenient.

8. How much does it cost to repair the B255D code on a 2015 GMC Sierra?

Repair costs vary but typically range from $50 to $300, depending on whether the issue is with wiring, the lamp control switch, or the BCM.

9. Can I fix the B255D code myself?

If you're comfortable with basic electrical troubleshooting, you can inspect fuses, wiring, and connectors. However, BCM-related issues may require professional assistance.

10. Will clearing the B255D code fix the problem?

Clearing the code with a scan tool may temporarily remove it, but the issue will return if the underlying problem is not resolved.