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 MANUALSCHEVROLET1997ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISSTEERING AND SUSPENSIONSTEERINGSTEERING COLUMNSERVICE AND REPAIRINFLATOR MODULE - REPLACEMENT
1997 Chevrolet Astro Van 2WD V6-4.3L VIN W
Inflator Module - Replacement
1997 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Inflator Module - Replacement
Disconnecting The Inflator Module From The Steering Wheel:
WARNING: When performing service on or around SIR components or wiring, follow the procedures listed below to temporarily disable the SIR system. Failure to follow procedures could result in possible air bag deployment, personal injury, or otherwise unneeded SIR system repairs.
REMOVE OR DISCONNECT
1. Disable the SIR system.
2. Negative battery cable.
3. Turn steering wheel 90 degrees to access rear shroud holes to inflator module.
4. Insert screw driver and push leaf spring to release pin.
5. Turn steering wheel 180 degrees to access remaining rear shroud holes.
6. Insert screw driver and push leaf spring to release pin.
7. Inflator module (tilt rearward from the top to access SIR wiring).
8. SIR lead wire from clip on inflator module.
9. SIR lead wire from clip on steering wheel.
10. Connector position assurance (CPA) and retainer from the inflator module.
WARNING: When carrying a live inflator module, make sure the bag opening is pointed away from you. In case of accidental deployment, the bag will then deploy with a minimal chance of personal injury. Never carry the inflator module by the wires or connectors on the underside of the module. When placing a live inflator module on a bench or other surface, always face the bag and trim cover up, away from the surface. This is necessary so that a free space is provided to allow the air bag to expand in the unlikely event of accidental deployment. Never rest a steering column assembly on the steering wheel with the inflator module face down and the column vertical. Otherwise, personal injury may result.
INSTALL OR CONNECT
1. SIR connector CPA and retainer to the inflator module.
2. SIR lead wire to clip on steering wheel.
3. SIR lead wire to clip on inflator module.
4. Inflator module by pressing it firmly into steering wheel enough to engage and latch all four notched pins in the leaf spring. Do not pinch the wires.
5. Negative battery cable.
6. Enable the SIR system.
RENDER: 1.0x
NO RELATED
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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.