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 MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 308 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM - DEACTIVATION PROCEDURES)DISABLING & ACTIVATING AIR BAG SYSTEMTRACKERDISABLING SYSTEM
1999 GMC Forward Control 5.7 R, Automatic
Disabling System
1999 GMC Forward Control 5.7 R, AutomaticSECTION Disabling System
WARNING: This page does not describe the selected car, but rather 63 other vehicles, including the 2004 Suzuki Swift +, 2004 Pontiac Vibe, 2004 Pontiac Sunfire, 2004 Pontiac Montana, and 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- Before proceeding, follow air bag service precautions. See SERVICE PRECAUTIONS
. Ensure front wheels are in straight-ahead position. Remove key. Remove AIR BAG fuse from in-line fuse holder located near base of steering column. See Fig 1
.
- Zone 3 - To disable driver air bag module and coil located in SIR Zone 3, remove steering column opening trim plate. Remove Connector Position Assurance (CPA) clip, release lock tab, and disconnect driver air bag Yellow 2-pin connector. See Fig 1 .
- Zone 5 - To disable passenger air bag module located in SIR Zone 5, open glove box. Push inward on left and right-side stoppers and rotate glove box downward. Remove CPA clip, and disconnect Yellow 2-pin passenger-side air bag connector. See Fig 2 .
- Zone 8 - To disable inflatable restraint Sensing and Diagnostic Module (SDM) located in SIR Zone 8, disable Zones 3 and 5. Remove CPA clip from components Yellow connector. Disconnect components Yellow connector from vehicle harness Yellow connectors.
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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.