B0091 2017 GMC Sierra Code - Center Front Impact Sensor
Quick Answer
The B0091 code for a 2017 GMC Sierra specifically refers to an issue with the center front impact sensor. Common causes include Faulty center front impact sensor, Wiring issues or damage to the sensor's wiring harness, Corrosion or damage to sensor connectors. 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 2017 GMC Sierra indicates Center Front Impact Sensor.
- Common causes
- Common causes include Faulty center front impact sensor, Wiring issues or damage to the sensor's wiring harness, Corrosion or damage to sensor connectors.
- 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 2017 GMC Sierra Description
The B0091 code for a 2017 GMC Sierra specifically 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 if necessary. When this sensor malfunctions or fails, it can have serious implications for the vehicle's safety features.
Common Causes of B0091 2017 GMC Sierra
- Faulty center front impact sensor
- Wiring issues or damage to the sensor's wiring harness
- Corrosion or damage to sensor connectors
- Issues with the airbag control module
- Previous collision or impact that damaged the sensor
Symptoms of B0091 2017 GMC Sierra
- Illumination of the airbag warning light on the dashboard
- Inaccurate or inconsistent airbag deployment
- Unexpected airbag deployment
- Airbags failing to deploy in a collision
- Diagnostic trouble code B0091 stored in the vehicle's computer system
How to Fix B0091 2017 GMC Sierra
- Begin by diagnosing the specific cause of the B0091 code using a diagnostic scanner to pinpoint the issue with the center front impact sensor.
- Inspect the sensor, wiring harness, and connectors for any visible damage, corrosion, or loose connections. Replace or repair any damaged components as needed.
- Test the sensor's functionality by simulating impact scenarios and ensuring that it accurately detects collisions.
- Clear the B0091 code from the vehicle's computer system using the diagnostic scanner.
- Test drive the vehicle to confirm that the airbag warning light is no longer illuminated and that the sensor is functioning properly.
Cost to Fix B0091 2017 GMC Sierra
The typical repair costs for addressing a B0091 code related to the center front impact sensor on a 2017 GMC Sierra can vary depending on the extent of the issue and the specific repairs needed. On average, the cost of parts for a new center front impact sensor can range from $100 to $300, while labor costs can range from $150 to $300. Overall, the total repair cost for this issue may fall between $250 and $600.
Tech Notes for B0091 2017 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 2017 GMC Sierra Code
1. What is OBDII code B0091 in a 2017 GMC Sierra related to the Center Front Impact Sensor?
This code indicates a fault with the center front impact sensor of the vehicle's airbag system.
2. What are common symptoms of OBDII code B0091 in a 2017 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 OBDII code B0091 in a 2017 GMC Sierra?
Potential causes of this code include a faulty center front impact sensor, wiring issues, or a problem with the airbag control module.
4. How can I diagnose the issue related to OBDII code B0091 in my 2017 GMC Sierra?
Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connections related to the center front impact sensor, and testing the sensor itself for proper functionality.
5. Can I repair OBDII code B0091 in my 2017 GMC Sierra myself?
While some DIY enthusiasts may attempt to address this issue, it is recommended to have a qualified mechanic or technician diagnose and repair the problem to ensure proper functioning of the airbag system.
6. Is it safe to drive my 2017 GMC Sierra with OBDII code B0091 present?
It is not advisable to drive the vehicle with an active airbag system fault code, as it may compromise the effectiveness of the airbags in the event of a collision.
7. How much does it typically cost to repair OBDII code B0091 in a 2017 GMC Sierra?
The cost of repairing this code can vary depending on the underlying issue, but it may involve replacing the center front impact sensor, repairing wiring, or addressing other related components.
8. Can resetting the OBDII code B0091 in my 2017 GMC Sierra make the problem go away?
Simply resetting the code without addressing the underlying issue will not fix the problem, as the fault will likely return until the root cause is resolved.
9. Are there any recalls or technical service bulletins related to OBDII code B0091 in a 2017 GMC Sierra?
It is advisable to check with a GMC dealership or online databases for any recalls or technical service bulletins related to this specific OBDII code to see if there are any known issues or remedies.
10. How can I prevent OBDII code B0091 from occurring in my 2017 GMC Sierra in the future?
Regular maintenance and inspections of the airbag system, including checking the sensors and wiring, can help prevent issues like B0091 from occurring.
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