AutoCodes – Chevrolet – B2555 Chevrolet

B2555 Chevrolet Code - Passenger Compartment Lamp Control Circuit Short

Quick Answer

When the Body Control Module (BCM) signals for courtesy lamp operation, a message is sent over the serial data circuit to the driver door and passenger door switches. Common causes include Faulty Passenger Compartment Lamp, Faulty Door and Passenger Door Switch, Door and Passenger Door Switch harness is open or shorted. 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 Chevrolet indicates Passenger Compartment Lamp Control Circuit Short.
Common causes: Common causes include Faulty Passenger Compartment Lamp, Faulty Door and Passenger Door Switch, Door and Passenger Door Switch harness is open or shorted.
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 9,265

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 Dec 26, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2555 Chevrolet Description

When the Body Control Module (BCM) signals for courtesy lamp operation, a message is sent over the serial data circuit to the driver door and passenger door switches. The driver door switch and passenger door switch the applies battery voltage to the left and right courtesy lamp control circuits illuminating the door courtesy lamps. The driver door and passenger door switches also provide ground to the lamps. The Diagnostic Trouble Code (DTC) is set when the driver or passenger door switch detects a short to voltage in the courtesy lamp control circuit or the driver or passenger door switch detects a short to ground in the courtesy lamp control circuit.

OBDII Code B2555 Chevrolet - Passenger Compartment Lamp Control Circuit Short - AutoCodes.com — B2555 Chevrolet Code - Passenger Compartment Lamp Control Circuit Short

What does this mean?

What are the Possible Causes of the DTC B2555 Chevrolet?

Faulty Passenger Compartment Lamp
Faulty Door and Passenger Door Switch
Door and Passenger Door Switch harness is open or shorted
Door and Passenger Door Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2555 Chevrolet?

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

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2555 Chevrolet 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 B2555 Chevrolet Code

1. What does the OBDII code B2555 mean on a Chevrolet?

B2555 indicates a short circuit in the passenger compartment lamp control circuit, which manages the interior lighting.

2. What are the symptoms of the B2555 code?

Symptoms may include interior lights not functioning, lights staying on continuously, or flickering unexpectedly.

3. What causes the B2555 code to appear?

Common causes include damaged wiring, a faulty lamp control module, a shorted bulb socket, or a blown fuse in the lighting circuit.

4. Can I still drive my car with the B2555 code?

Yes, the B2555 code does not affect drivability, but it may cause inconvenience due to interior lighting issues.

5. How do I diagnose the B2555 code?

Start by inspecting the wiring and connectors for damage, check the lamp control module for faults, and test for continuity in the circuit to locate the short.

6. How can I fix the B2555 code on my Chevrolet?

Repairs may involve replacing damaged wiring, repairing or replacing the lamp control module, or fixing any shorted bulb sockets.

7. What tools are needed to troubleshoot the B2555 code?

You'll need a multimeter to test continuity, a basic set of hand tools, and possibly an OBDII scanner to clear the code after repairs.

8. Is the B2555 code covered under warranty?

This depends on your vehicleâ€™s warranty terms. Interior electrical issues may be covered if the car is still under factory warranty.

9. Can a dead battery cause the B2555 code?

A dead or weak battery is unlikely to directly cause this code, but electrical issues can sometimes exacerbate existing problems in the lighting circuit.

10. How much does it cost to fix the B2555 code?

Repairs can range from $50 to $200, depending on whether itâ€™s a simple wiring fix or if parts like the lamp control module need replacement.