Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit Description
When ignition switch is turned to RUN position, IGNITION POSITIVE VOLTAGE is applied from SDM fuse to SDM at IGNITION POSITIVE VOLTAGE input terminal No. A1. SDM responds by flashing AIR BAG warning light 7 times then turning off while performing tests on SIR system. If SDM detects no malfunctions, SDM commands Instrument Panel Cluster (IPC) to turn off AIR BAG warning light. If malfunction is detected, SDM commands IPC to turn AIR BAG warning light on.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.