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Code B0079

Symptoms

• Airbag warning light illuminated on the dashboard

• Seat belt not functioning properly

• Error code stored in the vehicle's computer

Common Causes

• Faulty seat belt pretensioner

• Damaged wiring or connectors

• Defective airbag control module

Glossary

Pretensioner: A device that tightens the seat belt in the event of a crash.

Airbag Control Module: A component that manages the deployment of airbags and pretensioners in a vehicle.

Related Codes

• B0080

• B0081

Laymans terms

This code means there's a problem with the part of the car that helps tighten your seatbelt quickly in an accident. It's like when a superhero quickly grabs you to keep you safe.

Explanation

The code B0079 indicates an issue with the driver's seat belt pretensioner, which is responsible for tightening the seat belt during a collision.

Technical description

The B0079 code is triggered when the airbag control module detects a malfunction in the driver's seat belt pretensioner circuit. This pretensioner is part of the vehicle's safety system designed to reduce slack in the seat belt during a crash, ensuring the occupant is securely restrained.

Diagnosis steps

• Perform a visual inspection of the seat belt pretensioner and related wiring.

• Use a diagnostic scanner to read and clear codes.

• Test the seat belt pretensioner circuit for continuity and resistance.

Repair procedures

• Replace the faulty seat belt pretensioner.

• Repair or replace damaged wiring or connectors.

• Reprogram or replace the airbag control module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Basic hand tools

Estimated repair cost

$150 - $600

Difficulty level

Moderate

Commonly affected vehicles

• Toyota Camry

• Honda Accord

• Ford Focus

Preventive measures

• Regularly inspect seat belts and their components.

• Avoid tampering with the seat belt system.

• Have the vehicle's safety systems checked during regular maintenance.

Error code type

Safety System Issue

User experience recommendations

• Do not ignore the airbag warning light.

• Have the vehicle inspected by a professional as soon as possible.

Warranty information

Check with the vehicle manufacturer for warranty coverage on safety components.

Historical data

This code has been associated with vehicles that have experienced airbag system issues, often due to wear and tear or accidental damage.

Urgency level

High – This issue affects the vehicle's safety systems and should be addressed immediately.

Legal and safety notice

Ignoring this code may compromise vehicle safety and could lead to legal liabilities in the event of an accident.

Testing conditions

• Vehicle ignition on

• Airbag system self-check completed

Component location

The driver's seat belt pretensioner is typically located at the base of the driver's seat or within the seatbelt retractor mechanism.

FAQs

Q: Can I drive with the B0079 code?
A: It's not recommended to drive with this code active, as it indicates a problem with the vehicle's safety system.

Q: Will resetting the code fix the problem?
A: Resetting the code may turn off the warning light temporarily, but it won't fix the underlying issue.

Last updated: Jun 9, 2026 • Source: internal database
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