B0091 Chevrolet Code - Center Front Impact Sensor
Quick Answer
The B0091 code for Chevrolet vehicles refers to an issue with the center front impact sensor. Common causes include Wiring or electrical issues, Sensor damage due to impact or corrosion, Faulty 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 Chevrolet indicates Center Front Impact Sensor.
- Common causes
- Common causes include Wiring or electrical issues, Sensor damage due to impact or corrosion, Faulty 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 Chevrolet Description
The B0091 code for Chevrolet vehicles 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 frontal impacts and deploying the airbags accordingly. When this sensor malfunctions or fails, it can have serious implications for the vehicle's safety and performance.
Common Causes of B0091 Chevrolet
- Wiring or electrical issues
- Sensor damage due to impact or corrosion
- Faulty sensor
- Poor connection between the sensor and the airbag control module
- Water damage or exposure to extreme temperatures
Symptoms of B0091 Chevrolet
- Airbag warning light illuminated on the dashboard
- Airbags not deploying in a collision
- Unexpected airbag deployment while driving
- Vehicle involved in a collision showing no airbag deployment
How to Fix B0091 Chevrolet
- Diagnose the issue using a specialized scan tool to retrieve the fault codes and determine the exact cause of the problem.
- Inspect the wiring and connections associated with the center front impact sensor for any damage or corrosion.
- Test the sensor's functionality and resistance to ensure it is operating within specifications.
- Replace the center front impact sensor if it is found to be faulty or damaged.
- Clear the fault codes and perform a final test to verify that the issue has been resolved.
Cost to Fix B0091 Chevrolet
The typical repair costs for addressing the B0091 code related to the center front impact sensor can range from $200 to $500, including parts and labor. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on various factors, as mentioned earlier. It's advisable to consult with a professional technician to get an accurate estimate based on your specific vehicle and location.
Tech Notes for B0091 Chevrolet
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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Information for Specific Chevrolet Models
- B0091 2014 Chevrolet Silverado — Center Front Impact Sensor
- B0091 2015 Chevrolet Silverado — Center Front Impact Sensor
- B0091 2016 Chevrolet Silverado — Center Front Impact Sensor
- B0091 2017 Chevrolet Silverado — Center Front Impact Sensor
- B0091 2018 Chevrolet Silverado — Center Front Impact Sensor
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 Chevrolet Code
1. What does OBDII code B0091 for a Chevrolet center front impact sensor mean?
This code indicates a malfunction in the center front impact sensor, which is responsible for detecting collisions at the front of the vehicle.
2. What are the common symptoms of a faulty center front impact sensor?
Common symptoms include the airbag warning light illuminating on the dashboard, the airbags not deploying in a collision, and potential issues with other safety systems.
3. What can cause the B0091 code to trigger in a Chevrolet?
The B0091 code can be triggered by a damaged impact sensor, wiring issues, a faulty airbag control module, or a problem with the overall airbag system.
4. How can I diagnose the cause of the B0091 code in my Chevrolet?
Diagnosing the B0091 code usually requires a scan tool to read the specific details of the code and conducting a visual inspection of the impact sensor and its wiring for any visible damage.
5. Is it safe to drive my Chevrolet with the B0091 code present?
It is not recommended to drive the vehicle with the B0091 code active, as it indicates a potential issue with the airbag system, which is crucial for occupant safety in the event of a collision.
6. Can I repair a B0091 code in my Chevrolet myself?
Repairing a B0091 code may require specialized knowledge and tools, so it is advisable to consult a professional mechanic or dealership to properly diagnose and fix the issue.
7. How much does it typically cost to repair a B0091 code in a Chevrolet?
The cost of repairing a B0091 code can vary depending on the underlying cause of the issue, but it may involve replacing the center front impact sensor, repairing wiring, or addressing other related components.
8. Will resetting the OBDII code clear the B0091 code in my Chevrolet?
Simply clearing the code without addressing the root cause will not fix the issue. It is important to diagnose and repair the problem triggering the B0091 code to ensure the safety system functions properly.
9. Are there any recalls or technical service bulletins related to the B0091 code in Chevrolet vehicles?
It is advisable to check with Chevrolet dealerships or online databases for any recalls or technical service bulletins related to the B0091 code in your specific Chevrolet model.
10. How often should I have the center front impact sensor in my Chevrolet inspected?
Regular inspections of the airbag system, including the impact sensors, are recommended during routine maintenance visits to ensure they are functioning correctly and to catch any potential issues early.
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