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 MANUALSCHEVROLET2005CHEVY EXPRESS G3500, VAN PASSENGER, LQ4REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSBODY CONTROL MODULE PROGRAMMING AND SETUPINFLATABLE RESTRAINT SENSING AND DIAGNOSTIC MODULE (SDM) REPLACEMENT
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4
Inflatable Restraint Sensing and Diagnostic Module (SDM) Replacement
2005 Chevrolet Chevy Express G3500, Van Passenger, LQ4SECTION Inflatable Restraint Sensing and Diagnostic Module (SDM) Replacement
If the sensing and diagnostic module (SDM) is replaced, the following procedures must be performed in the following order:
- BCM Reprogramming-Refer to Body Control Module (BCM) Programming/RPO Configuration in Computer/Integrating Systems.
- Theft Learn-Refer to Programming Theft Deterrent System Components in Theft Deterrent.
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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.