Engine-CodesGeneric – B3155

B3155 Code - Passenger Door Lock Switch Circuit

Quick Answer

The B3155 diagnostic trouble code (DTC) refers to an issue with the passenger door lock switch circuit in a vehicle. Common causes include Damaged or corroded wiring in the door lock switch circuit, A faulty passenger door lock switch, Malfunctioning door lock actuator. 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 indicates Passenger Door Lock Switch Circuit.
Common causes
Common causes include Damaged or corroded wiring in the door lock switch circuit, A faulty passenger door lock switch, Malfunctioning door lock actuator.
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 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B3155 Description

The B3155 diagnostic trouble code (DTC) refers to an issue with the passenger door lock switch circuit in a vehicle. This code indicates that there is a malfunction in the electrical circuit that controls the passenger door lock switch. The door lock switch is responsible for locking and unlocking the passenger door, and when this circuit is compromised, it can lead to various issues with the door lock system.

OBDII Code B3155 - Passenger Door Lock Switch Circuit
B3155 Code - Passenger Door Lock Switch Circuit

Common Causes of B3155

  1. Damaged or corroded wiring in the door lock switch circuit.
  2. A faulty passenger door lock switch.
  3. Malfunctioning door lock actuator.
  4. Issues with the body control module.
  5. Water or moisture intrusion causing electrical issues in the door lock system.

Symptoms of B3155

  1. Inability to lock or unlock the passenger door using the door lock switch.
  2. Intermittent operation of the passenger door lock.
  3. Unusual clicking or buzzing noises coming from the door lock actuator.
  4. The door lock switch feels loose or unresponsive.
  5. The door lock indicator light on the dashboard stays illuminated.

How to Fix B3155

  1. Begin by inspecting the wiring harness and connectors for any signs of damage or corrosion. Repair or replace any damaged wiring.
  2. Test the passenger door lock switch for proper operation. Replace the switch if it is faulty.
  3. Check the door lock actuator for proper function. Replace the actuator if necessary.
  4. Scan the vehicle's computer system to reset the DTC and clear the code.
  5. Test the passenger door lock system to ensure proper operation after completing the repairs.

Cost to Fix B3155

The typical repair costs for addressing a B3155 code related to the passenger door lock switch circuit can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It is important 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 recommended to check with local repair shops for a more accurate estimate based on the specific circumstances.

Tech Notes for B3155









User Submitted Video

Need more information about the B3155 code?

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

Need Help with the Code?

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

Code B3155 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 B3155 Code

1. What are the common symptoms of OBDII code B3155 (Passenger Door Lock Switch Circuit)?

- Common symptoms include the passenger door lock not working properly, the door not locking or unlocking, and issues with the door lock switch functionality.

2. What are the possible causes of OBDII code B3155?

- The code B3155 can be caused by a faulty passenger door lock switch, damaged wiring or connectors related to the switch, or issues with the door lock actuator.

3. How can I diagnose the cause of OBDII code B3155?

- You can diagnose the code by inspecting the passenger door lock switch for any visible damage, checking the wiring and connectors for loose connections or corrosion, and testing the door lock actuator for proper functionality.

4. Can a malfunctioning passenger door lock switch cause other issues in the vehicle?

- Yes, a malfunctioning passenger door lock switch can lead to inconvenience and potential safety concerns, such as difficulty in securing the door properly or accessing the vehicle.

5. What are some DIY repair tips for fixing OBDII code B3155?

- DIY repair tips include checking and cleaning the connectors, replacing the passenger door lock switch if necessary, and ensuring all wiring related to the switch is properly connected and intact.

6. Is it safe to continue driving with OBDII code B3155 present?

- It is not recommended to continue driving with OBDII code B3155 present, as it can affect the proper functioning of the passenger door lock system and compromise the security of the vehicle.

7. How much does it typically cost to repair OBDII code B3155?

- The cost of repairing OBDII code B3155 can vary depending on the specific cause of the issue, but it may involve replacing the passenger door lock switch, repairing wiring, or addressing other related components.

8. Can OBDII code B3155 be triggered by a loose connection in the passenger door lock system?

- Yes, a loose connection in the passenger door lock system, such as a disconnected or corroded wire, can trigger OBDII code B3155 due to the interrupted circuit.

9. Are there any recalls related to OBDII code B3155 for specific vehicle models?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to OBDII code B3155 affecting specific vehicle models.

10. How important is it to address OBDII code B3155 promptly?

- It is important to address OBDII code B3155 promptly to ensure the proper functioning of the passenger door lock system, maintain vehicle security, and prevent further damage or safety risks.

Discuss the causes and fixes for B3155 OBDII Code

Code B3155 comments

No comments found for this page.