AutoCodes – Chevrolet – B2955 2018 Chevrolet Silverado

B2955 2018 Chevrolet Silverado Code - Security Sensor Data Circuit Malfunction

Quick Answer

When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the key is energized by the exciter coil surrounding the ignition lock cylinder. Common causes include Faulty Immobilizer Control Module, Immobilizer Control Module harness is open or shorted, Immobilizer Control Module 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: B2955 2018 Chevrolet Silverado indicates Security Sensor Data Circuit Malfunction.
Common causes: Common causes include Faulty Immobilizer Control Module, Immobilizer Control Module harness is open or shorted, Immobilizer Control Module 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 298

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 Jun 01, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2955 2018 Chevrolet Silverado Description

When an ignition key is inserted into the ignition lock cylinder and the ignition is switched ON, the transponder embedded in the key is energized by the exciter coil surrounding the ignition lock cylinder. The transponder transmits a signal to the Immobilizer Control Module. The Immobilizer Control Module translates this signal to a serial data message which is sent to the Body Control Module (BCM). The BCM then compares this value to a value stored in memory. If the value is correct, the BCM will send the prerelease password via the serial data circuit to the Engine Control Module (ECM). If the learned key code does not match or a transponder value is not received, the BCM will send the start disable password to the ECM. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a circuit fault on the immobilizer antenna circuits.

OBDII Code B2955 2018 Chevrolet Silverado - Security Sensor Data Circuit Malfunction - AutoCodes.com — B2955 2018 Chevrolet Silverado Code - Security Sensor Data Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B2955 2018 Chevrolet Silverado?

Faulty Immobilizer Control Module
Immobilizer Control Module harness is open or shorted
Immobilizer Control Module circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2955 2018 Chevrolet Silverado?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2955 2018 Chevrolet Silverado 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 B2955 2018 Chevrolet Silverado code?

Need more information on how to fix the B2955 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2955 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B2955 in a 2018 Chevrolet Silverado?

The common symptoms of OBDII code B2955, indicating a Security Sensor Data Circuit Malfunction in a 2018 Chevrolet Silverado, may include issues with the vehicle's security system, such as the alarm not functioning properly or the vehicle not starting.

2. What are the potential causes of OBDII code B2955 in a 2018 Chevrolet Silverado?

The potential causes of OBDII code B2955 in a 2018 Chevrolet Silverado could be a faulty security sensor, damaged wiring related to the security system, or a malfunctioning control module.

3. How can I diagnose OBDII code B2955 in my 2018 Chevrolet Silverado?

Diagnosing OBDII code B2955 in a 2018 Chevrolet Silverado involves using a diagnostic scanner to retrieve the specific fault code, checking the wiring and connectors related to the security sensor circuit, and testing the security sensor itself for proper operation.

4. Is it safe to continue driving my 2018 Chevrolet Silverado with OBDII code B2955 present?

It is not recommended to continue driving your 2018 Chevrolet Silverado with OBDII code B2955 present, as the security sensor data circuit malfunction could potentially affect the vehicle's security system and lead to unexpected issues.

5. How can I repair OBDII code B2955 in my 2018 Chevrolet Silverado?

Repairing OBDII code B2955 in a 2018 Chevrolet Silverado may involve replacing the faulty security sensor, repairing any damaged wiring or connectors, or reprogramming the control module associated with the security system.

6. Can OBDII code B2955 in a 2018 Chevrolet Silverado be reset without repairs?

While you may be able to clear the OBDII code B2955 temporarily, it is not recommended to reset the code without addressing the underlying issue, as it may lead to recurring problems with the security sensor data circuit.

7. Are there any DIY tips for resolving OBDII code B2955 in my 2018 Chevrolet Silverado?

DIY tips for resolving OBDII code B2955 in a 2018 Chevrolet Silverado include checking for loose or damaged wiring, ensuring proper connections to the security sensor, and consulting the vehicle's repair manual for specific troubleshooting steps.

8. How much does it typically cost to repair OBDII code B2955 in a 2018 Chevrolet Silverado?

The cost of repairing OBDII code B2955 in a 2018 Chevrolet Silverado can vary depending on the specific issue, but it may involve expenses for parts, labor, and diagnostic services from a professional mechanic.

9. Can a professional mechanic help diagnose and repair OBDII code B2955 in my 2018 Chevrolet Silverado?

Yes, a professional mechanic with experience in diagnosing and repairing automotive electrical issues can help identify the root cause of OBDII code B2955 in your 2018 Chevrolet Silverado and perform the necessary repairs to resolve the problem.

10. Does OBDII code B2955 affect the overall performance of a 2018 Chevrolet Silverado?

While OBDII code B2955 specifically relates to a Security Sensor Data Circuit Malfunction in a 2018 Chevrolet Silverado, addressing this issue promptly is important to ensure the proper functioning of the vehicle's security system and overall performance.