Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps tighten the seatbelt in the middle front seat during a crash to keep you safe.
The B0071 code indicates an issue with the electrical circuit responsible for deploying the seat belt pretensioner in the front center seat.
The B0071 code is triggered when the airbag control module detects a fault in the deployment circuit of the first-row center seat belt pretensioner. This component is designed to tighten the seatbelt in the event of a collision, ensuring the occupant is securely restrained.
• Airbag warning light is on
• Seatbelt pretensioner does not activate
• Possible reduction in seatbelt effectiveness during a crash
• Faulty seat belt pretensioner
• Damaged wiring or connectors
• Faulty airbag control module
Pretensioner: A device that tightens the seatbelt in the event of a crash.
Airbag Control Module: The component that manages the airbag system, including seatbelt pretensioners.
• Scan the vehicle for codes using an OBD-II scanner.
• Inspect the wiring and connectors related to the seat belt pretensioner.
• Test the seat belt pretensioner for proper function.
• Replace the faulty seat belt pretensioner.
• Repair or replace damaged wiring or connectors.
• Replace the airbag control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Chevrolet Silverado
• GMC Sierra
• Ford F-150
• Regularly inspect seatbelts and related components.
• Ensure no objects are obstructing seatbelt mechanisms.
• Have the airbag system checked during routine maintenance.
Safety System Issue
• Do not ignore the airbag warning light.
• Have the vehicle inspected by a professional as soon as possible.
Check with your vehicle manufacturer as safety components may be covered under a longer warranty period.
This code has been more common in vehicles with high mileage or those that have been involved in minor collisions.
High – This issue affects the safety of the vehicle occupants.
Driving with a malfunctioning seat belt pretensioner can reduce the effectiveness of the seatbelt system during a crash, increasing the risk of injury.
• Vehicle must be stationary.
• Ensure the battery is fully charged.
The seat belt pretensioner is located within the seat belt assembly of the front center seat.
Q: Can I drive with a B0071 code?
A: It's not recommended as it affects your safety during a crash.
Q: Will the airbag deploy if the seatbelt pretensioner is faulty?
A: The airbag may still deploy, but the seatbelt may not provide optimal protection.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking power, ground, and continuity in body-system circuits.
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Useful for electrical diagnosis when blown fuses or circuit faults are part of the troubleshooting process.
Useful when body electrical faults trace back to blown fuses or shared circuits.
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