B0091 2015 GMC Sierra Code - Center Front Impact Sensor
Quick Answer
The B0091 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the center front impact sensor. Common causes include Impact or damage to the front bumper area where the sensor is located, Wiring or electrical issues affecting the sensor's operation, Corrosion or moisture intrusion affecting the sensor. 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 2015 GMC Sierra indicates Center Front Impact Sensor.
- Common causes
- Common causes include Impact or damage to the front bumper area where the sensor is located, Wiring or electrical issues affecting the sensor's operation, Corrosion or moisture intrusion affecting the sensor.
- 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 B0091 2015 GMC Sierra Description
The B0091 diagnostic trouble code (DTC) for a 2015 GMC Sierra refers to an issue with the center front impact sensor. This sensor is a crucial component of the vehicle's safety system, as it is responsible for detecting impacts to the front of the vehicle and triggering the deployment of airbags in the event of a collision. When this sensor malfunctions or fails, it can compromise the effectiveness of the airbag system, potentially putting occupants at risk in the event of a crash.
Common Causes of B0091 2015 GMC Sierra
- Impact or damage to the front bumper area where the sensor is located.
- Wiring or electrical issues affecting the sensor's operation.
- Corrosion or moisture intrusion affecting the sensor.
- Sensor malfunction due to age or wear.
- Faulty airbag control module.
Symptoms of B0091 2015 GMC Sierra
- Airbag warning light illuminated on the dashboard.
- Airbags not deploying in a collision.
- Inconsistent or erratic airbag deployment.
- Diagnostic trouble code (DTC) B0091 stored in the vehicle's computer system.
How to Fix B0091 2015 GMC Sierra
- Begin by diagnosing the issue using a professional-grade scan tool to retrieve the specific DTC and pinpoint the exact cause of the problem.
- Inspect the center front impact sensor for any visible damage, corrosion, or loose connections. Replace the sensor if necessary.
- Check the wiring harness and connectors for any signs of damage or wear. Repair or replace any damaged components.
- Clear the DTC from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
- If the problem persists, further diagnostics may be required to identify any underlying issues with the airbag control module or other related components.
Cost to Fix B0091 2015 GMC Sierra
The cost of repairing a center front impact sensor can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of a new center front impact sensor can range from $100 to $300, while labor costs for installation can range from $100 to $200. Overall, the total repair cost for this issue may fall between $200 and $500. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the repair shop. It's recommended to consult with a professional mechanic for a more accurate cost estimate based on your specific situation.
Tech Notes for B0091 2015 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
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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 2015 GMC Sierra Code
1. What does OBDII code B0091 for a 2015 GMC Sierra indicate?
The B0091 code in a 2015 GMC Sierra specifically relates to the Center Front Impact Sensor.
2. What are the common symptoms of OBDII code B0091 in a 2015 GMC Sierra?
Common symptoms of the B0091 code may include the airbag warning light illuminating on the dashboard or a message indicating an issue with the airbag system.
3. What can cause the B0091 code to trigger in a 2015 GMC Sierra?
The B0091 code in a 2015 GMC Sierra is typically triggered by a malfunction or fault in the Center Front Impact Sensor, often due to wiring issues or sensor damage.
4. How serious is the OBDII code B0091 in a 2015 GMC Sierra?
The B0091 code relating to the Center Front Impact Sensor is a serious issue as it directly affects the proper functioning of the airbag system, potentially compromising occupant safety in the event of a collision.
5. How can I diagnose the B0091 code in my 2015 GMC Sierra?
Diagnosing the B0091 code requires a professional OBDII scanner to read the trouble code and further testing to determine the exact cause of the Center Front Impact Sensor malfunction.
6. Can I continue driving my 2015 GMC Sierra with the B0091 code present?
It is not recommended to drive your 2015 GMC Sierra with the B0091 code active, as it indicates a problem with the airbag system's crucial safety component.
7. How can I repair the B0091 code in my 2015 GMC Sierra?
Repairing the B0091 code may involve replacing the Center Front Impact Sensor, addressing any wiring issues, or repairing sensor damage as needed.
8. Is it possible to reset the B0091 code in a 2015 GMC Sierra without fixing the underlying issue?
Resetting the B0091 code without addressing the underlying problem with the Center Front Impact Sensor is not advisable, as the issue will likely persist and compromise the airbag system's functionality.
9. Are there any DIY tips for addressing the B0091 code in a 2015 GMC Sierra?
Due to the safety implications and complexity of the airbag system, it is recommended to seek professional help to diagnose and repair the B0091 code in a 2015 GMC Sierra.
10. How much does it cost to fix the B0091 code in a 2015 GMC Sierra?
The cost of fixing the B0091 code can vary depending on the exact cause of the issue, parts and labor costs, and whether the repair is done at a dealership or an independent repair shop.
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