B291B 2014 GMC Sierra 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 GMC Sierra 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.
Code B291B 2014 GMC Sierra Description
What are the Possible Causes of the DTC B291B 2014 GMC Sierra?
- 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 GMC Sierra?
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 GMC Sierra 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.
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Frequently Asked Questions about B291B 2014 GMC Sierra Code
What does OBDII code B291B mean on a 2014 GMC Sierra?
Code B291B indicates an issue with the Content Theft Deterrent (CTD) system sensor, which is responsible for monitoring unauthorized vehicle access.
What are the symptoms of code B291B on a 2014 GMC Sierra?
Common symptoms include the theft deterrent system not functioning properly, false alarms, or the inability to arm the system.
What causes code B291B to appear on a 2014 GMC Sierra?
This code is typically caused by a malfunctioning CTD sensor, wiring issues, a blown fuse, or a problem with the control module.
Can B291B affect the vehicle's operation?
No, this code typically does not affect the vehicle’s drivability but compromises the theft deterrent system's functionality.
How can I diagnose code B291B?
Use an OBDII scanner to confirm the code, visually inspect the CTD sensor and wiring, and check for blown fuses or connector issues.
How do I fix code B291B on a 2014 GMC Sierra?
Repairs may include replacing the CTD sensor, repairing damaged wiring, or resetting the theft deterrent system through the control module.
Where is the CTD sensor located on a 2014 GMC Sierra?
The CTD sensor is usually located near the ignition switch or within the vehicle's security module system.
Can a weak battery trigger code B291B?
Yes, a weak or failing battery can sometimes disrupt the theft deterrent system and cause this code to appear.
Do I need to reprogram the theft deterrent system after fixing code B291B?
In some cases, reprogramming or resetting the theft deterrent system may be required after replacing the sensor or repairing wiring.
Can I drive with code B291B on my 2014 GMC Sierra?
Yes, you can drive the vehicle, but the theft deterrent system may not function properly, leaving the vehicle vulnerable to theft.
Discuss the causes and fixes for B291B 2014 GMC Sierra OBDII Code
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