AutoCodes – Chevrolet – B291B 2014 Chevrolet Silverado

B291B 2014 Chevrolet Silverado Code - Content Theft Deterrent Sensor

Quick Answer

The Body Control Module (BCM) performs various communication fault detection tests to determine if a software, hardware, or communication concern exists with the ultrasonic intrusion sensor. Common causes include Faulty Content Theft Deterrent Sensor Module, Content Theft Deterrent Sensor Module harness is open or shorted, Content Theft Deterrent Sensor 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: B291B 2014 Chevrolet Silverado indicates Content Theft Deterrent Sensor.
Common causes: Common causes include Faulty Content Theft Deterrent Sensor Module, Content Theft Deterrent Sensor Module harness is open or shorted, Content Theft Deterrent Sensor 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 212

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 B291B 2014 Chevrolet Silverado Description

The Body Control Module (BCM) performs various communication fault detection tests to determine if a software, hardware, or communication concern exists with the ultrasonic intrusion sensor. The sensor being disconnected, a poor connection at the connector, or the vehicle battery being discharged could all cause the communication to be interrupted. This interruption stops the self-test from completing which causes Diagnostic Trouble Code (DTC) B291B. This is not because of the sensor failing, it is because of a previous or existing open connection between the sensor and the BCM. Restoring this connection and then arming the theft system will complete the test and allow the DTC to be cleared. The DTC will be set when the BCM cannot communicate with the ultrasonic intrusion sensor.

OBDII Code B291B 2014 Chevrolet Silverado - Content Theft Deterrent Sensor - AutoCodes.com — B291B 2014 Chevrolet Silverado Code - Content Theft Deterrent Sensor

What does this mean?

What are the Possible Causes of the DTC B291B 2014 Chevrolet Silverado?

Faulty Content Theft Deterrent Sensor Module
Content Theft Deterrent Sensor Module harness is open or shorted
Content Theft Deterrent Sensor Module circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B291B 2014 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 B291B 2014 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 B291B 2014 Chevrolet Silverado code?

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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 B291B 2014 Chevrolet Silverado Code

1. What does OBDII code B291B on a 2014 Chevrolet Silverado indicate?

The B291B code specifically relates to the Content Theft Deterrent Sensor on a 2014 Chevrolet Silverado.

2. What are common symptoms associated with OBDII code B291B in a 2014 Chevrolet Silverado?

Common symptoms include issues with the content theft deterrent system, such as false alarms or the system not functioning correctly.

3. What are the possible causes of OBDII code B291B on a 2014 Chevrolet Silverado?

The code B291B can be triggered by a malfunctioning content theft deterrent sensor, wiring issues, or a faulty control module.

4. How can I diagnose the cause of OBDII code B291B on my 2014 Chevrolet Silverado?

Diagnosing the issue typically involves checking the wiring connections, testing the sensor for proper operation, and inspecting the control module for any faults.

5. Can OBDII code B291B on a 2014 Chevrolet Silverado be fixed without professional help?

While some basic troubleshooting can be done by DIY enthusiasts, fixing the Content Theft Deterrent Sensor issue may require specialized tools and expertise, so professional assistance is often recommended.

6. Are there any quick repair tips for resolving OBDII code B291B on a 2014 Chevrolet Silverado?

Quick repair tips may include checking for loose connections, ensuring the sensor is properly aligned, and resetting the system to see if the code clears.

7. How important is it to address OBDII code B291B promptly on a 2014 Chevrolet Silverado?

Addressing the B291B code promptly is recommended to prevent potential security system malfunctions and ensure the proper functioning of the content theft deterrent feature.

8. Can ignoring OBDII code B291B cause other issues in a 2014 Chevrolet Silverado?

Ignoring the B291B code may lead to further content theft deterrent system problems, potential security vulnerabilities, and difficulties in protecting the vehicle from theft.

9. Is resetting the OBDII system a viable solution for clearing code B291B on a 2014 Chevrolet Silverado?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the Content Theft Deterrent Sensor persists, the code is likely to reappear.

10. How can a professional mechanic help in resolving OBDII code B291B on a 2014 Chevrolet Silverado?

A professional mechanic can conduct a thorough diagnosis, perform specialized tests, and accurately pinpoint the cause of the issue, leading to a proper repair and resolution of the B291B code.