Engine-CodesGeneric – B2555

B2555 Code - Passenger Compartment Lamp Control Circuit Short

Quick Answer

The B2555 diagnostic trouble code (DTC) indicates that there is a short circuit in the passenger compartment lamp control circuit of the vehicle. Common causes include Damaged wiring in the passenger compartment lamp circuit, Faulty lamp control module, Defective switch for the interior lighting. 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
B2555 indicates Passenger Compartment Lamp Control Circuit Short.
Common causes
Common causes include Damaged wiring in the passenger compartment lamp circuit, Faulty lamp control module, Defective switch for the interior lighting.
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 07, 2024
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Code B2555 Description

The B2555 diagnostic trouble code (DTC) indicates that there is a short circuit in the passenger compartment lamp control circuit of the vehicle. This code typically affects the functionality of the interior lighting system, specifically the passenger compartment lamp. The passenger compartment lamp is responsible for illuminating the interior of the vehicle when the doors are opened or when the switch is activated manually.

OBDII Code B2555 - Passenger Compartment Lamp Control Circuit Short
B2555 Code - Passenger Compartment Lamp Control Circuit Short

Common Causes of B2555

  1. Damaged wiring in the passenger compartment lamp circuit
  2. Faulty lamp control module
  3. Defective switch for the interior lighting
  4. Malfunctioning body control module
  5. Short circuit due to water intrusion or corrosion

Symptoms of B2555

  1. Passenger compartment lamp not turning on
  2. Flickering of the interior lighting
  3. Dashboard warning light indicating a lighting system fault
  4. Inconsistent operation of the interior lighting
  5. Electrical issues affecting other systems in the vehicle

How to Fix B2555

  1. Begin by inspecting the wiring harness for any visible signs of damage or corrosion. Repair or replace any damaged wires as needed.
  2. Test the lamp control module and switch for proper functionality. Replace any components that are found to be faulty.
  3. Check the body control module for any error codes related to the passenger compartment lamp control circuit. Reset or reprogram the module if necessary.
  4. Clear the DTC from the vehicle's computer using a diagnostic scanner and verify that the issue has been resolved.
  5. Test the interior lighting system to ensure that the passenger compartment lamp functions correctly.

Cost to Fix B2555

The typical repair costs for addressing a B2555 code related to a passenger compartment lamp control circuit short can range from $100 to $300, depending on the extent of the issue and the specific components that need to be replaced. This estimate includes parts and labor. However, it's important to note that actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It's recommended to consult with a professional technician for a more accurate cost estimate.

Tech Notes for B2555

B2555 01 Passenger Compartment Lamp Control Circuit Short to Battery
B2555 02 Passenger Compartment Lamp Control Circuit Short to Ground

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Code B2555 Information for Specific Makes

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 B2555 Code

1. What are common symptoms of OBDII code B2555, Passenger Compartment Lamp Control Circuit Short?

- Common symptoms include the passenger compartment lamp not working properly or not turning on at all.

2. What are possible causes of OBDII code B2555?

- Possible causes include a short circuit in the passenger compartment lamp wiring, a faulty lamp control module, or damaged wiring harnesses.

3. How can I diagnose the cause of OBDII code B2555?

- To diagnose this code, you can start by checking the wiring and connections related to the passenger compartment lamp, testing the lamp itself, and using a multimeter to check for continuity and shorts in the circuit.

4. Can I still drive my vehicle with OBDII code B2555 present?

- It is generally safe to drive your vehicle with this code, as it primarily affects the passenger compartment lamp and does not impact the overall drivability of the vehicle.

5. How can I repair OBDII code B2555, Passenger Compartment Lamp Control Circuit Short?

- Repair options may include repairing or replacing damaged wiring, replacing the lamp control module, or addressing any other issues identified during the diagnostic process.

6. Is it possible to reset OBDII code B2555 without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause of the issue to prevent the code from reoccurring.

7. Are there any DIY tips for troubleshooting OBDII code B2555?

- DIY tips include visually inspecting the lamp and its connections, checking for loose or damaged wiring, and consulting the vehicle's service manual for specific troubleshooting steps.

8. Can a faulty interior lamp switch trigger OBDII code B2555?

- Yes, a faulty interior lamp switch can potentially trigger this code if it disrupts the proper operation of the passenger compartment lamp control circuit.

9. How long does it typically take to repair OBDII code B2555?

- The repair time can vary depending on the specific cause of the issue, but in general, it may take anywhere from 30 minutes to a few hours to diagnose and repair this code.

10. Will fixing OBDII code B2555 improve the overall functionality of the passenger compartment lamp?

- Yes, addressing this code should help restore proper functionality to the passenger compartment lamp and ensure it operates as intended.

Discuss the causes and fixes for B2555 OBDII Code

  • My 07 Chevy Suburban has code B2555, Driver's door module, undefined. Lately the aux. fan will come on by itself when the driver's door is opened, then closed.  the rear access open (window) light will come on when it it is closed and will cause all dome lights to come on and stay on until the access is opened and closed a few times.  The other day, the door locks would randomly lock and unlock as I was driving, as well as the dome lights turning on and off every time I hit a bump in the road!  Finding an electrical short or problem is like finding a needle in a haystack...any suggestions on where I should start?  This is the 4th Suburban I have bought new and am seriously wondering what other vehicles to consider next time around...Thank you!   Sally A.  

  • I wish I could get an answer on what you found for this issue I have a vehicle with the same issue

  • Hello Steven, let check if I can help. What model and year is your vehicle?

  • 2014 gmc Yukon with the exact same concern as salmarfarm

  • Sounds like you may have a problem with one of the doors ajar switch. Unfortunately the code itself wont tell you exactly which side is. Also, sometimes the switch is working as designed, but one of the doors is not aligning properly causing a large gap between the body and door.

    B2555 GMC - Passenger Compartment Lamp Control Circuit Short
    Read more: https://www.autocodes.com/b...

  • I think its more likely a grounding issue somewhere is what it seems like.

  • found the issue it was a rubbed wire in the liftgate harness between the liftgate and the body of the vehicle. replace the rear liftgate wiring harness.

  • Thank you for sharing!!