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.
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HOMESERVICE MANUALSCADILLAC1996ELDORADO V8-4.6L VIN 9REPAIR AND DIAGNOSISRESTRAINTS AND SAFETY SYSTEMSAIR BAG SYSTEMSAIR BAG CONTROL MODULEDESCRIPTION AND OPERATION
1996 Cadillac Eldorado V8-4.6L VIN 9
Air Bag Control Module: Description and Operation
1996 Cadillac Eldorado V8-4.6L VIN 9SECTION Description and Operation
DESCRIPTION
The Sensing and Diagnostic Module (SDM) performs several system functions. These functions include energy reserve, air bag deployment, malfunction detection, malfunction diagnosis, driver notification, frontal crash detection and frontal crash recording.
OPERATION
The SDM contains a sensing device which converts vehicle velocity changes to an electrical signal. The electrical signal generated is processed by the SDM and then compared to a value stored in memory. When the generated signal exceeds the stored value, additional signals are compared to signals stored in memory. When two of the generated signals exceed the stored values or when one of the generated signals exceeds the stored value and the forward discriminating sensor closes, the SDM will cause current to flow through the inflator modules deploying the air bags.
The Sensing and Diagnostic Module (SDM) performs several system functions. These functions include energy reserve, air bag deployment, malfunction detection, malfunction diagnosis, driver notification, frontal crash detection and frontal crash recording.
OPERATION
The SDM contains a sensing device which converts vehicle velocity changes to an electrical signal. The electrical signal generated is processed by the SDM and then compared to a value stored in memory. When the generated signal exceeds the stored value, additional signals are compared to signals stored in memory. When two of the generated signals exceed the stored values or when one of the generated signals exceeds the stored value and the forward discriminating sensor closes, the SDM will cause current to flow through the inflator modules deploying the air bags.
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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.