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 an issue with the airbag system for the third row of seats in your car. It's like a safety balloon that might not work properly if you have a crash.
The code B004B indicates a problem with the airbag deployment system for the third row right seat. Specifically, it refers to the stage 3 deployment control, which is part of a multi-stage airbag system.
B004B is a diagnostic trouble code (DTC) for a malfunction in the airbag system's third row right frontal stage 3 deployment control. This system is designed to deploy airbags in stages based on the severity of a crash. A fault in this system can prevent the airbag from deploying correctly, potentially compromising passenger safety.
• Airbag warning light on
• Airbag system not functioning
• Potential safety risk in a collision
• Faulty airbag control module
• Damaged wiring or connectors
• Defective airbag sensor
Airbag Control Module: A device that manages the deployment of airbags in a vehicle.
DTC: Diagnostic Trouble Code, used to identify issues in a vehicle's systems.
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the airbag control module
• Replace or repair damaged wiring
• Replace faulty airbag control module
• Ensure all connectors are secure
• OBD-II scanner
• Multimeter
• Screwdriver set
$200 - $600
Moderate
• Chevrolet Suburban
• GMC Yukon XL
• Cadillac Escalade ESV
• Regularly inspect airbag system components
• Address warning lights promptly
• Ensure vehicle recalls are up to date
Safety System Issue
• Do not ignore airbag warning lights
• Have the vehicle inspected by a professional
• Avoid driving until the issue is resolved
Check with your vehicle manufacturer for any applicable warranties on safety systems.
Airbag system faults have been a common issue in vehicles with advanced safety features, leading to recalls and updates in design.
High – Airbag system issues should be addressed immediately to ensure passenger safety.
Driving with a malfunctioning airbag system can be dangerous and may not comply with safety regulations.
• Vehicle stationary
• Ignition on
The airbag control module is typically located under the dashboard or center console.
Q: Can I drive my car with this code?
A: It's not recommended to drive with an airbag system fault, as it may not deploy in an accident.
Q: Will this issue trigger the check engine light?
A: No, airbag system issues typically trigger the airbag warning light, not the check engine light.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Body and airbag faults often need a scanner that can access more than generic powertrain codes.
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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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Universal · Fuse kit
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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