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, SDM performs tests to diagnose critical internal malfunctions. SDM provides input power to Side Impact Sensor (SIS). SIS performs internal diagnostics, then sends an ID message to SDM. SDM receives ID message within 5 seconds of power being turned on and determines if message is valid. SIS continually communicates a status message to SDM. SDM can reset SIS by removing and reapplying power to SIS.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.