After even a minor fender bender, your 2022 Toyota Camry may display an illuminated airbag warning light with code B0100. This indicates the Supplemental Restraint System (SRS) has detected a fault or recorded a crash event that requires professional attention before the system will function properly again.
Understanding Code B0100
The B0100 code indicates a malfunction in the driver's frontal airbag circuit. After an impact, the SRS module records crash data and may set fault codes even if airbags didn't deploy. This is a safety feature - the system needs verification that all components remain functional and properly connected after any collision event.
Why Minor Accidents Trigger the Light
Modern crash sensors are sensitive by design. An impact that doesn't deploy airbags may still be significant enough to trigger sensor recording. The SRS module stores crash event data that must be cleared with a professional scan tool. Impact sensors may have shifted or wiring connections loosened during the collision.
What Needs Inspection
The entire SRS system requires inspection: airbag modules, clock spring (steering column connector), crash sensors, wiring harnesses, and the SRS control module. Even if components aren't damaged, the crash data stored in the module may require clearing or the module itself may need replacement depending on severity.
Important Safety Warning
Never ignore an illuminated airbag light. The SRS system won't function properly to protect occupants in a subsequent collision. This repair requires professional equipment - consumer scan tools cannot access SRS systems for safety reasons. A qualified technician must diagnose and repair the system.