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 14 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM DEACTIVATION PROCEDURES)FORD MOTOR CO.DISABLING & ACTIVATING AIR BAG SYSTEMDISABLING SYSTEM (ECONOLINE)
1999 GMC Forward Control 5.7 R, Automatic
Disabling System (Econoline)
1999 GMC Forward Control 5.7 R, AutomaticSECTION Disabling System (Econoline)
WARNING: This page does not describe the selected car, but rather 114 other vehicles, including the 2000 Saturn SW2, 2000 Saturn SL2, 2000 Saturn SL1, 2000 Saturn SL, and 2000 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.
- Record radio preset frequencies for reprogramming, if equipped. On gasoline engines, disconnect negative battery cable. On gasoline engines with dual batteries, also disconnect auxiliary battery negative cable, on right frame rail. On diesel engines, disconnect primary battery negative cable. Disconnect and INSULATE primary battery positive cable.WARNING: On diesel engines with dual batteries, the primary battery positive cable remains energized after it is disconnected.
- On all models, wait at least 1 minute for backup power supply to deplete stored energy. Remove driver air bag module. See DRIVER AIR BAG MODULE . Connect appropriate air bag simulator to clockspring connector at top of steering column, in place of air bag. See AIR BAG SIMULATOR .
- Remove finish panel on lower right side of dash panel. Using screwdriver under lower right edge of door, CAREFULLY lift up air bag door on right side of dash. See Fig 1. Remove passenger air bag module nuts. Slide passenger air bag module out and disconnect air bag module electrical connector. Connect appropriate air bag simulator to passenger air bag vehicle harness connector, in place of air bag. See AIR BAG SIMULATOR . Reconnect all battery cables.
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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.