• Airbag warning light on
• Airbag system not functioning
• Possible error messages on dashboard
• Faulty airbag sensor
• Damaged wiring or connectors
• Corrosion in the sensor circuit
OBD-II: On-Board Diagnostics, a system for self-diagnosing and reporting vehicle issues.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• B0119
• B0121
This code means there's a problem with the car's airbag sensors. It's like when a toy's safety feature isn't working right.
B0120 indicates an issue with the airbag sensor circuit.
The B0120 code is triggered when the vehicle's airbag system detects a malfunction in the sensor circuit. This could be due to a fault in the wiring, connectors, or the sensor itself, which may affect the airbag's ability to deploy correctly in an accident.
• Check for any other related error codes.
• Inspect the wiring and connectors for damage or corrosion.
• Test the airbag sensor for proper operation.
• Replace faulty airbag sensor.
• Repair or replace damaged wiring or connectors.
• Clean any corrosion in the circuit.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly inspect airbag system components.
• Keep electrical connections clean and dry.
• Address warning lights promptly.
Sensor Issue
• Do not ignore the airbag warning light.
• Have a professional inspect the airbag system.
• Avoid DIY repairs unless experienced.
Check if the airbag system is covered under the vehicle's safety warranty.
Airbag sensor issues have been a common concern due to their critical role in vehicle safety.
High – Airbag system malfunctions can compromise safety in an accident.
Driving with a malfunctioning airbag system can be dangerous and may not comply with safety regulations.
• Vehicle parked on a level surface
• Ignition in the ON position
Airbag sensors are usually located in the front of the vehicle, near the bumper or inside the cabin.
Q: Can I drive with the B0120 code?
A: It's not recommended, as the airbag system may not function properly in an accident.
Q: How do I reset the airbag warning light?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the light should stay off.
