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B2955 2014 GMC Sierra Code - Security Sensor Data Circuit Malfunction

Quick Answer

The B2955 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a Security Sensor Data Circuit Malfunction. Common causes include Damaged wiring or connectors in the security sensor data circuit, Faulty security sensor, Issues with the security system control module. 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
B2955 2014 GMC Sierra indicates Security Sensor Data Circuit Malfunction.
Common causes
Common causes include Damaged wiring or connectors in the security sensor data circuit, Faulty security sensor, Issues with the security system control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B2955 2014 GMC Sierra Description

The B2955 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a Security Sensor Data Circuit Malfunction. This code typically points to an issue with the security system's sensor data circuit, which is responsible for monitoring and detecting unauthorized access or tampering with the vehicle. The security sensor data circuit plays a crucial role in ensuring the vehicle's security and preventing theft.

OBDII Code B2955 2014 GMC Sierra - Security Sensor Data Circuit Malfunction
B2955 2014 GMC Sierra Code - Security Sensor Data Circuit Malfunction

Common Causes of B2955 2014 GMC Sierra

  1. Damaged wiring or connectors in the security sensor data circuit.
  2. Faulty security sensor.
  3. Issues with the security system control module.
  4. Corrosion or moisture damage affecting the security system components.
  5. Electrical problems within the security system circuitry.

Symptoms of B2955 2014 GMC Sierra

  1. Security system warning light illuminated on the dashboard.
  2. Inability to arm or disarm the security system.
  3. False alarms triggered by the security system.
  4. Vehicle not starting due to security system issues.
  5. Unusual behavior of the security system, such as random locking and unlocking of doors.

How to Fix B2955 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the security sensor data circuit, checking for any damaged wiring or connectors. Repair or replace any faulty components as needed.
  2. Test the security sensors to determine if any are malfunctioning. Replace any faulty sensors to restore proper functionality.
  3. Check the security system control module for any issues or malfunctions. If necessary, reprogram or replace the control module.
  4. Inspect for any corrosion or moisture damage affecting the security system components. Clean or replace any affected parts to prevent further issues.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool after completing the repairs to reset the security system.

Cost to Fix B2955 2014 GMC Sierra

The typical repair costs for addressing a Security Sensor Data Circuit Malfunction (B2955) in a 2014 GMC Sierra can vary depending on the specific cause of the issue and the extent of repairs needed. On average, the parts and labor for this repair could range from $200 to $500. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. For a more precise estimate, it's recommended to check with local auto repair shops.

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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 B2955 2014 GMC Sierra Code

1. What does the OBDII code B2955 mean in a 2014 GMC Sierra?

B2955 indicates a Security Sensor Data Circuit Malfunction, meaning there's an issue with the communication or functionality of the vehicle's security system sensor.

2. What are the common symptoms of code B2955 in a 2014 GMC Sierra?

Common symptoms include the vehicle failing to start, the security light staying illuminated on the dashboard, or intermittent starting issues.

3. What causes the B2955 code to appear in a 2014 GMC Sierra?

The code can be triggered by a faulty security sensor, damaged wiring or connectors in the security system circuit, or issues with the Body Control Module (BCM).

4. Can a weak battery cause the B2955 code in a 2014 GMC Sierra?

Yes, a weak or failing battery can cause voltage irregularities that may trigger security system malfunctions, including the B2955 code.

5. How do I diagnose the B2955 code in my 2014 GMC Sierra?

Use an OBDII scanner to confirm the code, inspect the wiring and connectors related to the security system, and test the security sensor for proper functionality.

6. Is it possible to clear the B2955 code without repairs on a 2014 GMC Sierra?

Clearing the code with a scanner may temporarily remove it, but if the underlying issue isn't fixed, the code and symptoms will likely return.

7. Can a faulty key fob cause a B2955 code in a 2014 GMC Sierra?

While not common, a malfunctioning key fob or an issue with the transponder in the key can interfere with the security system and potentially contribute to the code.

8. How much does it cost to fix the B2955 code on a 2014 GMC Sierra?

Repair costs can vary widely depending on the issue but typically range between $100 and $400, depending on whether the problem lies with the sensor, wiring, or BCM.

9. Can I drive my 2014 GMC Sierra with the B2955 code active?

While the vehicle may still run, the B2955 code can cause starting issues or leave you stranded if the security system disables the ignition. It’s best to address the problem promptly.

10. What tools are needed to fix the B2955 code on a 2014 GMC Sierra?

You’ll need a diagnostic scanner, a multimeter to test wiring and voltage, and basic tools for inspecting and repairing connections or replacing components.

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