B0091:39 Code - Center Front Impact Sensor Internal Electronic Failure
Quick Answer
The B0091:39 code indicates that there is an internal electronic failure in the center front impact sensor of the vehicle. Common causes include Electrical issues such as wiring damage or corrosion, Sensor component failure, Impact or collision damaging 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
- B0091:39 indicates Center Front Impact Sensor Internal Electronic Failure.
- Common causes
- Common causes include Electrical issues such as wiring damage or corrosion, Sensor component failure, Impact or collision damaging 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 B0091:39 Description
The B0091:39 code indicates that there is an internal electronic failure in the center front impact sensor of the vehicle. This sensor is responsible for detecting impacts to the front of the vehicle and triggering the airbag deployment system in the event of a crash. When this sensor fails, it can lead to a malfunction in the airbag system, potentially preventing the airbags from deploying in a collision. This poses a serious safety risk to the occupants of the vehicle and should be addressed promptly.
Common Causes of B0091:39
- Electrical issues such as wiring damage or corrosion
- Sensor component failure
- Impact or collision damaging the sensor
- Faulty airbag control module
- Software malfunction in the airbag system
Symptoms of B0091:39
- Airbag warning light illuminated on the dashboard
- Airbags not deploying in a crash
- Inconsistent or erratic airbag deployment
- Diagnostic trouble codes related to the airbag system
- Vehicle failing airbag system self-checks during startup
How to Fix B0091:39
- Diagnose the specific cause of the internal electronic failure in the center front impact sensor
- Replace the faulty sensor component or repair any damaged wiring
- Reset the airbag system and clear the diagnostic trouble codes
- Conduct a thorough system test to ensure proper functioning of the airbag system
- Perform a final check to verify that the airbag warning light is no longer illuminated
Cost to Fix B0091:39
The typical repair cost for addressing a B0091:39 code related to a center front impact sensor internal electronic failure can range from $200 to $500, including parts and labor. However, the 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. It's advisable to check local rates for a more precise estimate.
Tech Notes for B0091:39
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 B0091:39 Code
1. What are the common symptoms of OBDII code B0091:39 (Center Front Impact Sensor Internal Electronic Failure)?
- Common symptoms include the airbag warning light illuminating on the dashboard, potential loss of airbag functionality, and diagnostic trouble code B0091:39 stored in the vehicle's computer.
2. What are the possible causes of OBDII code B0091:39?
- The code B0091:39 typically indicates an internal electronic failure within the center front impact sensor, which may be caused by wiring issues, sensor damage, or a faulty sensor module.
3. How serious is OBDII code B0091:39 (Center Front Impact Sensor Internal Electronic Failure)?
- This code is considered serious as it relates to the vehicle's airbag system. A malfunctioning impact sensor can compromise the effectiveness of the airbags in the event of a collision, potentially putting occupants at risk.
4. Can I continue driving with OBDII code B0091:39 active?
- It is not recommended to drive with an active B0091:39 code, as it indicates a problem with the airbag system. It's important to have the issue diagnosed and repaired promptly to ensure the safety features of the vehicle are functioning correctly.
5. How can I diagnose OBDII code B0091:39?
- Diagnosing OBDII code B0091:39 requires a professional OBDII scanner to retrieve the specific code from the vehicle's computer. Further inspection may be needed to identify the exact cause of the center front impact sensor failure.
6. Is it possible to repair OBDII code B0091:39 (Center Front Impact Sensor Internal Electronic Failure) myself?
- Repairing OBDII code B0091:39 may require advanced diagnostic tools and knowledge of airbag systems. It is recommended to seek assistance from a qualified mechanic or dealership to properly diagnose and repair the issue.
7. How much does it typically cost to repair OBDII code B0091:39?
- The cost of repairing OBDII code B0091:39 can vary depending on the underlying cause of the failure, the labor rates of the repair facility, and the cost of any necessary replacement parts. It is advisable to obtain quotes from different sources for an accurate estimate.
8. Can a faulty center front impact sensor be repaired, or does it need to be replaced?
- In most cases, a faulty center front impact sensor will need to be replaced rather than repaired. This ensures the safety and reliability of the airbag system in the vehicle.
9. Are there any preventive measures to avoid OBDII code B0091:39 from occurring?
- Regular maintenance checks and inspections can help identify potential issues with the airbag system before they escalate to a failure. Ensuring proper handling of the vehicle and avoiding accidents can also help prevent damage to the impact sensors.
10. How long does it typically take to repair OBDII code B0091:39 (Center Front Impact Sensor Internal Electronic Failure)?
- The repair time for OBDII code B0091:39 can vary depending on the extent of the damage and the availability of replacement parts. In some cases, repairs can be completed within a few hours, while more complex issues may require additional time.
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