B0091 2014 GMC Sierra Code - Center Front Impact Sensor
Quick Answer
The B0091 diagnostic trouble code (DTC) indicates a problem with the center front impact sensor in a 2014 GMC Sierra. Common causes include Impact or collision causing physical damage to the sensor, Wiring harness or connector issues leading to poor electrical connection, Corrosion or moisture ingress affecting the sensor's functionality. 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
- B0091 2014 GMC Sierra indicates Center Front Impact Sensor.
- Common causes
- Common causes include Impact or collision causing physical damage to the sensor, Wiring harness or connector issues leading to poor electrical connection, Corrosion or moisture ingress affecting the sensor's functionality.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B0091 2014 GMC Sierra Description
The B0091 diagnostic trouble code (DTC) indicates a problem with the center front impact sensor in a 2014 GMC Sierra. This sensor is a vital component of the vehicle's Supplemental Restraint System (SRS) or airbag system. The purpose of the center front impact sensor is to detect a collision or impact to the front of the vehicle and send a signal to deploy the airbags in order to protect the occupants in the event of a crash.
Common Causes of B0091 2014 GMC Sierra
- Impact or collision causing physical damage to the sensor.
- Wiring harness or connector issues leading to poor electrical connection.
- Corrosion or moisture ingress affecting the sensor's functionality.
- Faulty sensor due to internal component failure.
- Software or programming issues within the SRS system.
Symptoms of B0091 2014 GMC Sierra
- Airbag warning light illuminated on the dashboard.
- Airbag system error message displayed on the instrument cluster.
- Airbags not deploying in a collision.
- Vehicle fails to pass state inspection due to SRS system malfunction.
- Unusual clicking or rattling noise from the center front impact sensor area.
How to Fix B0091 2014 GMC Sierra
- Diagnostic Scan: Use a diagnostic scanner to retrieve the specific fault code (B0091) and pinpoint the exact location of the issue.
- Visual Inspection: Inspect the center front impact sensor for physical damage, corrosion, or loose connections.
- Repair or Replace Sensor: Depending on the findings, repair any wiring harness or connector issues, clean corrosion, or replace the faulty sensor with a new one.
- Clear Codes: After completing the repair, clear the DTC and reset the SRS system to ensure the issue is resolved.
- Test System: Perform a test drive and check the functionality of the airbag system to confirm that the repair was successful.
Cost to Fix B0091 2014 GMC Sierra
The cost of repairing a center front impact sensor in a 2014 GMC Sierra can vary depending on the specific issue and the labor rates of the repair shop. Typically, the cost of a new center front impact sensor can range from $100 to $300, depending on the brand and quality. Additionally, the labor cost for diagnosis and repair can range from $150 to $400, depending on the shop's hourly rate and the complexity of the repair. Overall, the total cost of repairing a B0091 DTC in a 2014 GMC Sierra can range from $250 to $700. It is essential to consult with a professional mechanic or repair shop to get an accurate estimate based on your specific situation.
Tech Notes for B0091 2014 GMC Sierra
B0091:02 Center Front Impact Sensor Short to Ground
B0091:05 Center Front Impact Sensor Short to Battery or Open
B0091:0F Center Front Impact Sensor Erratic
B0091:39 Center Front Impact Sensor Internal Electronic Failure
B0091:3A Center Front Impact Sensor Incorrect Component Installed
B0091:71 Center Front Impact Sensor Invalid Serial Data Received
Need more information about the B0091 2014 GMC Sierra code?
Need more information on how to fix the B0091 2014 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B0091 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B0091 2014 GMC Sierra Code
1. What does the OBDII code B0091 for a 2014 GMC Sierra mean?
- The B0091 code indicates a problem with the Center Front Impact Sensor in the vehicle's airbag system.
2. What are the common symptoms of a B0091 OBDII code in a 2014 GMC Sierra?
- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's functionality.
3. What are possible causes of the B0091 code in a 2014 GMC Sierra?
- The B0091 code can be triggered by a faulty Center Front Impact Sensor, wiring issues, or a problem with the airbag control module.
4. How can I diagnose a B0091 OBDII code in my 2014 GMC Sierra?
- Diagnosing the B0091 code typically involves using a diagnostic scanner to retrieve the specific fault codes and then inspecting the Center Front Impact Sensor and related wiring for any visible damage.
5. Can I continue driving my 2014 GMC Sierra with a B0091 OBDII code?
- It is not recommended to drive the vehicle with an active B0091 code, as it may indicate potential safety risks with the airbag system not functioning correctly.
6. How can I repair a B0091 OBDII code in my 2014 GMC Sierra?
- Repairing the B0091 code usually involves replacing the Center Front Impact Sensor, repairing any damaged wiring, or reprogramming the airbag control module as needed.
7. Are there any DIY tips for fixing a B0091 OBDII code in a 2014 GMC Sierra?
- While some basic troubleshooting like checking for loose connections or damaged wiring can be done by DIY enthusiasts, it's recommended to have a professional mechanic diagnose and repair the issue due to the critical nature of the airbag system.
8. Is resetting the OBDII system enough to clear the B0091 code in a 2014 GMC Sierra?
- Resetting the OBDII system may temporarily clear the B0091 code, but it will likely reappear if the underlying issue with the Center Front Impact Sensor is not addressed.
9. How much does it cost to fix a B0091 OBDII code in a 2014 GMC Sierra?
- The cost of fixing a B0091 code can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.
10. Can a B0091 OBDII code in a 2014 GMC Sierra be dangerous if left unfixed?
- Yes, leaving a B0091 code unresolved can be dangerous as it indicates potential problems with the airbag system, which is crucial for occupant safety in the event of a collision.
Discuss the causes and fixes for B0091 2014 GMC Sierra OBDII Code
Code B0091 2014 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.