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 MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 180 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)REMOVAL & INSTALLATIONSENSING & DIAGNOSTIC MODULE (SDM)REMOVAL & INSTALLATION
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Removal & Installation
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Removal & Installation
WARNING: This page is about a different car, the 2002 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
- Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Disable air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM .
- On models with bench seat, remove front seat assembly. On models with bucket seats, remove passenger front seat. On all models, move carpet and insulation to gain access to SDM. See Fig 1. Remove Connector Position Assurance (CPA) clips from SDM connectors. Remove SDM connectors from SDM. Remove SDM mounting bolts. Remove SDM.
- To install, reverse removal procedure. Ensure arrow on SDM is facing toward front of vehicle. Tighten SDM and front seat bolts to specification. See TORQUE SPECIFICATIONS . Activate air bag system.
RENDER: 1.0x
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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.