AutoCodes – Chevrolet – B2955 2015 Chevrolet Silverado

B2955 2015 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 2015 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 335

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 2015 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 2015 Chevrolet Silverado - Security Sensor Data Circuit Malfunction - AutoCodes.com — B2955 2015 Chevrolet Silverado Code - Security Sensor Data Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B2955 2015 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 2015 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 2015 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 2015 Chevrolet Silverado code?

Need more information on how to fix the B2955 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2955 2015 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 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B2955 in a 2015 Chevrolet Silverado?

The common symptoms of OBDII code B2955, indicating a Security Sensor Data Circuit Malfunction in a 2015 Chevrolet Silverado, include issues with the vehicle's security system, such as intermittent starting problems or the security light staying on.

2. What are the possible causes of OBDII code B2955 in a 2015 Chevrolet Silverado?

Possible causes of OBDII code B2955 in a 2015 Chevrolet Silverado include faulty security sensor data circuit connections, damaged wiring, a defective security sensor, or issues with the vehicle's body control module.

3. How can I diagnose the Security Sensor Data Circuit Malfunction in my 2015 Chevrolet Silverado?

Diagnosing the Security Sensor Data Circuit Malfunction in a 2015 Chevrolet Silverado involves using an OBDII scanner to retrieve the specific trouble code (B2955), checking the security sensor connections, inspecting the wiring for any damage, and testing the security sensor itself.

4. Can I repair OBDII code B2955 in my 2015 Chevrolet Silverado on my own?

Repairing OBDII code B2955 in a 2015 Chevrolet Silverado may require advanced automotive diagnostic skills. If you have experience with electrical troubleshooting and access to wiring diagrams, you may be able to diagnose and repair the issue yourself. Otherwise, it's recommended to seek professional help.

5. Is it safe to continue driving my 2015 Chevrolet Silverado with OBDII code B2955?

It is not recommended to continue driving your 2015 Chevrolet Silverado with OBDII code B2955, as it indicates a malfunction in the security sensor data circuit, which could potentially lead to starting issues or other security-related problems. It's best to address the issue promptly.

6. How much does it typically cost to repair OBDII code B2955 in a 2015 Chevrolet Silverado?

The cost of repairing OBDII code B2955 in a 2015 Chevrolet Silverado can vary depending on the exact cause of the issue. It may involve simple fixes like reconnecting loose wires or more complex repairs such as replacing the security sensor or body control module. Professional repair costs can range from $100 to $500 or more.

7. Can a faulty battery trigger OBDII code B2955 in a 2015 Chevrolet Silverado?

While a faulty battery can potentially cause electrical issues in a vehicle, it is less likely to trigger OBDII code B2955 specifically. It's important to first focus on diagnosing the security sensor data circuit and related components to pinpoint the exact cause of the malfunction.

8. Will resetting the OBDII code B2955 in my 2015 Chevrolet Silverado make the issue go away?

Resetting the OBDII code B2955 in a 2015 Chevrolet Silverado may temporarily clear the trouble code, but if the underlying issue causing the Security Sensor Data Circuit Malfunction is not addressed, the code is likely to return. It's crucial to diagnose and repair the root cause of the problem.

9. Can extreme weather conditions affect the occurrence of OBDII code B2955 in a 2015 Chevrolet Silverado?

Extreme weather conditions can potentially impact the electrical components of a vehicle, including the security sensor data circuit. Moisture or temperature fluctuations may lead to intermittent issues triggering OBDII code B2955. Properly insulating and protecting the wiring and sensors can help mitigate these effects.

10. How long does it typically take to repair OBDII code B2955 in a 2015 Chevrolet Silverado?

The repair time for OBDII code B2955 in a 2015 Chevrolet Silverado can vary based on the complexity of the issue and the availability of parts. Simple fixes like reconnecting wires may take less than an hour, while more intricate repairs such as sensor replacement or module reprogramming could take several hours to complete.