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Code B0111

Symptoms

• Airbag warning light is on

• Airbag system may not deploy in a crash

• Possible error message on dashboard

Common Causes

• Faulty frontal impact sensor

• Damaged wiring or connectors in the sensor circuit

• Faulty airbag control module

Glossary

OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.

Frontal Impact Sensor: A sensor that detects frontal collisions and triggers airbag deployment.

Related Codes

• B0110

• B0112

Laymans terms

This code means there's a problem with the airbag system in your car. It's like a warning light telling you that something might not work right if you get into an accident.

Explanation

B0111 is an OBD-II code that indicates a fault in the airbag system, specifically related to the frontal sensor.

Technical description

The B0111 code is triggered when there is a malfunction in the frontal impact sensor circuit. This sensor is part of the airbag system and is responsible for detecting frontal collisions and triggering the airbag deployment.

Diagnosis steps

• Use an OBD-II scanner to confirm the B0111 code.

• Inspect the frontal impact sensor and its wiring for damage.

• Test the sensor and circuit with a multimeter.

Repair procedures

• Replace the faulty frontal impact sensor.

• Repair or replace damaged wiring or connectors.

• Reset the airbag system and clear the code.

Tools required

• OBD-II scanner

• Multimeter

• Socket set

Estimated repair cost

$150 - $400

Difficulty level

Moderate

Commonly affected vehicles

• Chevrolet Impala

• Ford F-150

• Toyota Camry

Preventive measures

• Regularly inspect airbag system components.

• Avoid water exposure to sensor areas.

• Perform routine diagnostic checks.

Error code type

Sensor Issue

User experience recommendations

• Do not ignore the airbag warning light.

• Have the vehicle inspected by a professional.

• Avoid driving until the issue is resolved if possible.

Warranty information

Check with your vehicle manufacturer as airbag systems might be covered under extended warranty.

Historical data

This code has been associated with vehicles that have experienced frontal impact sensor failures due to corrosion or physical damage.

Urgency level

High – Airbag system issues can compromise safety in the event of a collision.

Legal and safety notice

Driving with a malfunctioning airbag system can be dangerous and may not comply with vehicle safety regulations.

Testing conditions

• Vehicle must be stationary.

• Ignition must be in the 'on' position.

Component location

The frontal impact sensor is typically located at the front of the vehicle, near the bumper or radiator support.

FAQs

Q: Can I drive with the B0111 code?
A: It's not recommended to drive with this code as it indicates a problem with the airbag system, which is crucial for safety in a crash.

Q: How do I reset the airbag warning light?
A: After repairs, use an OBD-II scanner to clear the code and reset the airbag system.

Last updated: Oct 28, 2025 • Source: internal database
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