Service function guideAirbag Warning Light Diagnosis

This guide covers the complete diagnostic process for an illuminated airbag or supplemental restraint system (SRS) warning light, from understanding the system architecture to reading and clearing fault codes safely. It is written for working mechanics and experienced DIYers who need to diagnose restraint faults without triggering accidental deployment or damaging sensitive components. You will learn how to prepare the vehicle, connect a scan tool, interpret manufacturer-specific codes, and verify the repair before returning the car to service. By the end, you will be able to perform a structured airbag warning light diagnosis on most common vehicle platforms and know when to escalate to a specialist.