AutoCodes – Chevrolet – B291B 2016 Chevrolet Silverado

B291B 2016 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 2016 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 233

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 2016 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 2016 Chevrolet Silverado - Content Theft Deterrent Sensor - AutoCodes.com — B291B 2016 Chevrolet Silverado Code - Content Theft Deterrent Sensor

What does this mean?

What are the Possible Causes of the DTC B291B 2016 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 2016 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 2016 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 2016 Chevrolet Silverado code?

Need more information on how to fix the B291B 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the 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 2016 Chevrolet Silverado Code

1. What is OBDII code B291B on a 2016 Chevrolet Silverado related to?

The B291B code specifically relates to the Content Theft Deterrent Sensor on a 2016 Chevrolet Silverado.

2. What are the common symptoms of OBDII code B291B on a 2016 Chevrolet Silverado?

Common symptoms include the security light staying on, issues with the key fob, and potential problems with the vehicle's alarm system.

3. What can cause OBDII code B291B to trigger on a 2016 Chevrolet Silverado?

The code B291B is usually triggered by a fault in the Content Theft Deterrent Sensor itself, wiring issues, or problems with the security system module.

4. How can I diagnose the Content Theft Deterrent Sensor issue triggering OBDII code B291B on my 2016 Chevrolet Silverado?

Diagnosing the issue may involve checking the wiring and connections related to the sensor, inspecting the sensor for physical damage, and using a diagnostic scanner to pinpoint the exact problem.

5. Can I still drive my 2016 Chevrolet Silverado with OBDII code B291B present?

While the vehicle may still be drivable with the code present, it is recommended to address the issue promptly to ensure the security system functions correctly.

6. How do I repair OBDII code B291B on a 2016 Chevrolet Silverado?

Repairing the B291B code may involve replacing the Content Theft Deterrent Sensor, repairing any damaged wiring, or resetting the security system module.

7. Are there any DIY tips for resolving OBDII code B291B on a 2016 Chevrolet Silverado?

DIY tips may include checking and cleaning the sensor connections, ensuring the key fob batteries are working, and resetting the security system according to the manufacturer's instructions.

8. Can a faulty key fob cause OBDII code B291B to trigger on a 2016 Chevrolet Silverado?

Yes, a faulty key fob or issues with the key fob signal can sometimes lead to the activation of code B291B due to communication problems with the security system.

9. How important is it to fix OBDII code B291B on a 2016 Chevrolet Silverado?

Fixing the B291B code is crucial to ensure the proper functioning of the Content Theft Deterrent Sensor and maintain the security of your vehicle against potential theft.

10. Is it recommended to seek professional help for resolving OBDII code B291B on a 2016 Chevrolet Silverado?

If you are unsure about diagnosing or repairing the B291B code, it is advisable to seek assistance from a qualified mechanic or dealership to address the issue accurately and efficiently.