B0091:0F Code - Center Front Impact Sensor Erratic
Quick Answer
The B0091:0F diagnostic trouble code indicates that there is an erratic signal coming from the center front impact sensor in the vehicle. Common causes include Wiring harness issues, such as frayed or damaged wires, Faulty center front impact sensor, Corrosion or poor connections in the sensor circuit. 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
- B0091:0F indicates Center Front Impact Sensor Erratic.
- Common causes
- Common causes include Wiring harness issues, such as frayed or damaged wires, Faulty center front impact sensor, Corrosion or poor connections in the sensor circuit.
- 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 B0091:0F Description
The B0091:0F diagnostic trouble code indicates that there is an erratic signal coming from the center front impact sensor in the vehicle. This sensor is a crucial component of the vehicle's safety system, as it helps detect impacts to deploy airbags and other safety features. When this sensor is not functioning properly, it can lead to issues with the deployment of airbags in the event of a collision.
Common Causes of B0091:0F
- Wiring harness issues, such as frayed or damaged wires
- Faulty center front impact sensor
- Corrosion or poor connections in the sensor circuit
- Issues with the vehicle's computer system
- Impact or damage to the sensor due to a previous collision
Symptoms of B0091:0F
- Airbag warning light illuminated on the dashboard
- Airbags not deploying in a collision
- Inconsistent or erratic airbag deployment
- Vehicle may fail safety inspections
- Diagnostic trouble codes related to airbag system
How to Fix B0091:0F
- Begin by diagnosing the specific cause of the erratic signal from the center front impact sensor using a diagnostic scanner.
- Inspect the wiring harness connected to the sensor for any damage or corrosion. Repair or replace any damaged wires.
- Test the center front impact sensor itself to determine if it is functioning correctly. Replace the sensor if necessary.
- Check for any loose connections or corrosion in the sensor circuit and repair as needed.
- Clear the diagnostic trouble codes from the vehicle's computer system and test the sensor to ensure the issue has been resolved.
Cost to Fix B0091:0F
The typical repair costs for addressing an erratic center front impact sensor can range from $200 to $500, including parts and labor. However, it is important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may charge less. It is recommended to check local rates for a more accurate estimate.
Tech Notes for B0091:0F
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.
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