GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Century 🢒 Restraints 🢒 SIR 🢒 General Service Instructions
  1. Do not expose the inflator modules to temperatures above 65°C (150°F).
  2. Verify the correct replacement part number. Do not substitute a component from a different vehicle.
  3. Do not repair any of the following components. Service these components by replacement only:
    4. • The inflatable restraint sensing and diagnostic module (SDM)
    • The inflatable restraint IP module
    • The inflatable restraint steering wheel module
    • The inflatable restraint steering wheel module coil
    • The inflatable restraint side impact sensor (SIS)
    • The inflatable restraint driver seat module
  4. Use only original GM replacement parts available from your authorized GM dealer. Do not use salvaged parts for repairs to the SIR system.
  5. Discard any of the following components if the component has been dropped from a height of 91 cm (3  ft) or greater:
    6. • The inflatable restraint sensing and diagnostic module (SDM).
    • The inflatable restraint IP module.
    • The inflatable restraint steering wheel module.
    • The inflatable restraint steering wheel module coil.
    • The inflatable restraint side impact sensor (SIS)
    • The inflatable restraint driver seat module
  6. When you replace the SDM, verify that the following conditions are met:
    7. • The mounting surface is clean.
    • The arrow on the module points toward the front of the vehicle.
    • The module is flat on the mounting surface, parallel to the vehicle datum line.
    • The module fasteners are installed and tightened as specified.
  7. When you replace a side impact sensor (SIS), verify that the following conditions are met:
    8. • The mounting surface is clean.
    • The module is flat on the mounting surface.
    • The module fasteners are installed and tightened as specified.
  8. In order to avoid setting false diagnostic trouble codes, only apply power to the SIR system when one of the following two conditions is met:
    9. • All SIR system components are properly mounted and electrically connected.
    • A diagnostic procedure directs you to turn ON the ignition.