AutoCodes – Chevrolet – B3155 Chevrolet

B3155 Chevrolet Code - Passenger Door Lock Switch Circuit

Quick Answer

The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. Common causes include Faulty Passenger Door Lock Switch, Passenger Door Lock Switch harness is open or shorted, Passenger Door Lock Switch 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: B3155 Chevrolet indicates Passenger Door Lock Switch Circuit.
Common causes: Common causes include Faulty Passenger Door Lock Switch, Passenger Door Lock Switch harness is open or shorted, Passenger Door Lock Switch 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 1,583

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 11, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B3155 Chevrolet Description

The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. When the driver door lock switch is in the open position, the voltage level in the signal circuit will be near 12 V. When the driver door lock switch is pressed to the lock or unlock position, the voltage level in the appropriate signal circuit will drop to 0 V and the BCM will detect the voltage drop and command the door latches to perform the requested lock or unlock command. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a short to ground in the switch circuit.

OBDII Code B3155 Chevrolet - Passenger Door Lock Switch Circuit - AutoCodes.com — B3155 Chevrolet Code - Passenger Door Lock Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B3155 Chevrolet?

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

How to Fix the DTC B3155 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

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3155 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.

Need more information about the B3155 Chevrolet code?

Need more information on how to fix the B3155 Chevrolet code? Get Access to Factory Service Manuals

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Get the B3155 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

B3155 2014 Chevrolet Silverado — Passenger Door Lock Switch Circuit
B3155 2015 Chevrolet Silverado — Passenger Door Lock Switch Circuit
B3155 2016 Chevrolet Silverado — Passenger Door Lock Switch Circuit
B3155 2017 Chevrolet Silverado — Passenger Door Lock Switch Circuit
B3155 2018 Chevrolet Silverado — Passenger Door Lock Switch Circuit

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 B3155 Chevrolet Code

1. What are the common symptoms of OBDII code B3155 in a Chevrolet related to the passenger door lock switch circuit?

The common symptoms include non-functional or erratic operation of the passenger door lock switch, failure to lock or unlock the door, and potential issues with the central locking system.

2. What are the possible causes of OBDII code B3155 in a Chevrolet related to the passenger door lock switch circuit?

Potential causes include a faulty passenger door lock switch, damaged wiring or connectors in the circuit, issues with the body control module, or a malfunctioning door lock actuator.

3. How can I diagnose the passenger door lock switch circuit issue causing OBDII code B3155 in my Chevrolet?

You can use a multimeter to test the continuity of the wiring, check the operation of the passenger door lock switch, inspect the connectors for damage, and scan the body control module for error codes.

4. Is it safe to continue driving my Chevrolet with OBDII code B3155 related to the passenger door lock switch circuit?

It is generally safe to drive the vehicle with this code, but you may experience inconvenience due to potential door lock issues. It's recommended to address the problem promptly to ensure proper functionality.

5. Can I repair the passenger door lock switch circuit issue causing OBDII code B3155 in my Chevrolet myself?

If you have experience with automotive electrical systems, you may be able to troubleshoot and repair the issue yourself. Otherwise, seeking assistance from a professional mechanic is advisable.

6. How much does it typically cost to repair the passenger door lock switch circuit issue related to OBDII code B3155 in a Chevrolet?

The cost of repair can vary depending on the exact cause of the issue and labor rates in your area. It may range from a simple fix like replacing a switch to more complex repairs involving wiring or module replacement.

7. Will resetting the OBDII code B3155 in my Chevrolet make the issue with the passenger door lock switch circuit go away?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the code to trigger. It's important to diagnose and address the root cause of the issue.

8. Can a malfunctioning passenger door lock switch circuit impact the overall safety of my Chevrolet?

While a faulty door lock switch circuit may not directly impact the safety of driving, it can pose security risks and inconvenience by potentially preventing proper locking of the door. Addressing the issue is recommended.

9. Are there any preventive measures I can take to avoid OBDII code B3155 related to the passenger door lock switch circuit in my Chevrolet?

Regularly inspecting the door lock switches, keeping the connectors clean and secure, and addressing any issues promptly can help prevent the occurrence of this OBDII code.

10. Can OBDII code B3155 in a Chevrolet related to the passenger door lock switch circuit affect other electrical components in the vehicle?

While the code is specific to the passenger door lock switch circuit, electrical issues in one part of the vehicle can sometimes impact other systems. It's essential to address the problem to maintain overall electrical functionality.