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Home >> Saturn >> 2002 >> SC2 Standard, MP2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (Supplemental Inflatable Restraint System) >> Repair Instructions >> Inflatable Restraint Steering Wheel Module Coil Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of SIR Coil
    GM396373Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Center the SIR coil assembly before installation.
  1. Align the wheels straight ahead.
  2. Center the SIR coil assembly (1), if needed. Refer to Inflatable Restraint Steering Wheel Module Coil Centering in Steering Wheel and Column.
    3. Fig 2: Identifying SIR Coil, Steering Shaft Assembly & Retaining Ring
    GM322951Courtesy of GENERAL MOTORS CORP.
  3. Install the existing SIR coil assembly (4) to the steering shaft assembly (2) following these steps:
    1. Position the SIR coil assembly (4) to the steering shaft assembly (2).
    2. Align the opening in the SIR coil assembly (4) with the horn tower and the locating bump between the 2 tabs on the lock housing cover and sleeve assembly.
    3. Seat the SIR coil assembly (4) onto the steering shaft assembly (2).
  4. Install a new SIR coil assembly (4) to the steering shaft assembly (2) following these steps:
    1. Assemble the pre-centered SIR coil assembly (4) to the steering shaft assembly (2).
    2. Position the SIR coil assembly (4) to the steering shaft assembly (2).
    3. Align the opening in the SIR coil assembly (4) with the horn tower and the locating bump between the 2 tabs on the lock housing cover and sleeve assembly.
    4. Remove and discard the centering tab.
  5. Install the retaining ring (3) to the steering shaft assembly (2).
    6. Fig 3: Steering Wheel Column Wire Harness & Wire Harness Straps
    GM323836Courtesy of GENERAL MOTORS CORP.
  6. Route the lower coil wire harness along the steering column.
  7. Install the steering wheel column wire harness (1) to the wire harness straps (2).
    8. Fig 4: Steering Wheel, Sir System & Upper & Lower Shrouds
    GM176718Courtesy of GENERAL MOTORS CORP.
  8. Install the steering wheel. Refer to Steering Wheel Replacement in Steering Wheel and Column.
  9. Remove the upper and lower shrouds. Refer to Steering Column Trim Covers Replacement (Telescoping) or Steering Column Trim Covers Replacement (Manual) in Steering Wheel and Column.
  10. Install the SIR system. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  11. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 .
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