Engine-CodesGMC – B255D 2015 GMC Sierra

B255D 2015 GMC Sierra Code - Passenger Compartment Lamp Control Circuit

Quick Answer

The B255D diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the passenger compartment lamp control circuit. Common causes include Faulty wiring connections, Defective lamp control module, Malfunctioning lamp assembly. 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 wiring connections, Defective lamp control module, Malfunctioning lamp assembly.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code B255D 2015 GMC Sierra Description

The B255D diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to the passenger compartment lamp control circuit. This code indicates that there is a malfunction in the circuit responsible for controlling the passenger compartment lamp. The passenger compartment lamp is an essential component of the vehicle's interior lighting system, providing illumination for the interior of the vehicle. When this circuit malfunctions, it can result in the passenger compartment lamp not turning on or flickering inconsistently.

OBDII Code B255D 2015 GMC Sierra - Passenger Compartment Lamp Control Circuit
B255D 2015 GMC Sierra Code - Passenger Compartment Lamp Control Circuit

Common Causes of B255D 2015 GMC Sierra

  1. Faulty wiring connections.
  2. Defective lamp control module.
  3. Malfunctioning lamp assembly.
  4. Issues with the body control module.
  5. Electrical shorts or open circuits in the control circuit.

Symptoms of B255D 2015 GMC Sierra

  1. Passenger compartment lamp not turning on.
  2. Flickering or dimming of the passenger compartment lamp.
  3. Interior of the vehicle is poorly illuminated.
  4. Dashboard warning light indicating a lamp control circuit issue.

How to Fix B255D 2015 GMC Sierra

  1. Begin by inspecting the wiring connections associated with the passenger compartment lamp control circuit to check for any loose or damaged wires.
  2. Test the lamp control module to determine if it is functioning correctly. Replace the module if necessary.
  3. Check the lamp assembly for any signs of damage or malfunction. Replace the lamp assembly if needed.
  4. Inspect the body control module for any faults related to the passenger compartment lamp control circuit. Address any issues found.
  5. Clear the DTC from the vehicle's onboard diagnostic system after completing the repairs and test the passenger compartment lamp to ensure it is functioning properly.

Cost to Fix B255D 2015 GMC Sierra

The typical repair costs for addressing a passenger compartment lamp control circuit issue can vary depending on the specific cause of the problem. In general, parts and labor for this repair could range from $100 to $300. However, it is essential to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

Tech Notes for B255D 2015 GMC Sierra

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

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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.

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