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 MANUALSOLDSMOBILE1998ACHIEVA 3.1 M, 4T40E/MN4REPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONRESTRAINTSSUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM DEACTIVATION PROCEDURESFORD MOTOR CO.DISABLING & ACTIVATING AIR BAG SYSTEMACTIVATING SYSTEM
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4
Activating System
1998 Oldsmobile Achieva 3.1 M, 4T40E/MN4SECTION Activating System
- Disconnect negative battery cable. Wait at least one minute. Remove air bag simulators from driver-side and passenger-side air bag wiring harness connectors.
- Connect driver-side air bag connector to air bag module. Install driver-side air bag module onto steering wheel. See DRIVER-SIDE AIR BAG MODULE .
- Connect passenger-side air bag connector to air bag module. Install passenger-side air bag into instrument panel. See PASSENGER-SIDE AIR BAG MODULE . Connect negative battery cable. Perform SYSTEM OPERATION CHECK . Program radio station frequencies.
- Disconnect negative battery cable. Wait at least one minute. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy. Remove driver-side and passenger-side air bag simulators.
- Install driver-side and passenger-side air bag modules. Tighten mounting bolts to specification. See TORQUE SPECIFICATIONS . Connect negative battery cable. Perform SYSTEM OPERATION CHECK . Program radio station frequencies.
- Disconnect negative battery cable. On "F" Series Pickups, remove battery to starter relay cable. On all models, wait at least one minute. This time is required for back-up power supply in ECS or diagnostic monitor to deplete its stored energy. Remove air bag simulators.
- Install driver-side air bag module and passenger-side air bag module. Tighten mounting bolts to specification. See TORQUE SPECIFICATIONS . Connect negative battery cable. Perform SYSTEM OPERATION CHECK .
CAUTION:
On all "E" series vans equipped with an auxiliary battery (gas engine) or a secondary battery (diesel engine), both batteries must be disconnected to ensure air bag system is disabled. See DISABLING SYSTEM ("E" SERIES VANS WITH DUAL BATTERIES) .
- Disconnect negative battery cable. Wait at least one minute. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy. Remove air bag simulators.
- Install driver-side air bag module and passenger-side air bag module. Tighten mounting bolts to specification. See TORQUE SPECIFICATIONS . Connect negative battery cable. Perform SYSTEM OPERATION CHECK .
- Disconnect battery cables. Wait at least one minute. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy. Remove air bag simulators.
- Install driver-side air bag module and passenger-side air bag module. Tighten mounting bolts to specification. See TORQUE SPECIFICATIONS . Connect battery cables in reverse order of disabling procedure. Perform SYSTEM OPERATION CHECK .
- Disconnect negative battery cable. Wait at least one minute. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy. Remove air bag simulators.
- Install driver-side and passenger-side air bag modules. Tighten mounting bolts to specification. See TORQUE SPECIFICATIONS . Connect positive battery cable. Perform SYSTEM OPERATION CHECK .
- Disconnect negative battery cable. Wait at least one minute. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy. Remove air bag simulators.
- Install driver-side and passenger-side air bag modules. See DRIVER-SIDE AIR BAG MODULE and PASSENGER-SIDE AIR BAG MODULE . Connect negative battery cable. Perform SYSTEM OPERATION CHECK . Program radio station frequencies.
- Disconnect negative battery cable. Wait at least 10 minutes. This time is required for back-up power supply in diagnostic monitor to deplete its stored energy.
- Remove air bag simulators. Connect negative battery cable. Perform SYSTEM OPERATION CHECK .
AIR BAG SIMULATOR APPLICATION
| Application | Driver-Side | Passenger-Side | ||
|---|---|---|---|---|
| Continental | 105-00012 | 105-00012 | ||
| Contour & Mystique | 105-R0012 | 105-R0012 | ||
| Crown Victoria & Grand Marquis | 105-R0010 | 105-R0010 | ||
| Escort (1) & Tracer | 105-00012 | 105-00012 | ||
| "E" Series Vans | 105-R0012 | 105-R0012 | ||
| Expedition & Navigator | 105-R0012 | 105-R0012 | ||
| Explorer & Mountaineer | 105-R0012 | 105-R0012 | ||
| "F" Series Pickups | 105-R0012 | 105-R0012 | ||
| Mark VIII | 105-R0012 | 105-R0012 | ||
| Mustang | 105-R0012 | 105-R0012 | ||
| Ranger | 105-00012 | 105-00012 | ||
| Sable & Taurus | 105-R0012 | 105-R0012 | ||
| Town Car | 105-00012 | 105-00012 | ||
| Villager | T94P-50-A | T96P-50-A | ||
| Windstar | 105-R0010 | 105-R0010 | ||
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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.