GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Corvette 🢒 Restraints 🢒 SIR 🢒 Steering Wheel Inflatable Restraint Module Coil Replacement

Removal Procedure

    Object Number: 176718 Size: SH
  1. Disable the SIR system. Refer to Disabling the SIR System .
  2. Remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  3. Remove the upper and lower shrouds. Refer to Steering Column Trim Cover Replacement - On Vehicle in Steering Wheel and Column -- Tilt.
  4. Remove the steering wheel. Refer to Steering Wheel Replacement in Steering Wheel and Column -- Tilt.

    5. Object Number: 323836 Size: SH
  5. Remove the steering wheel column wire harness (1) from the wire harness straps (2).

    6. Object Number: 293262 Size: SH
  6. Remove the retaining ring (3).
  7. Remove the inflatable restraint steering wheel module coil (2) from the steering shaft.

Installation Procedure

    Object Number: 396373 Size: SH

    Important: SIR coil assembly must be centered before it is installed.

  1. Make sure that the wheels are straight ahead.
  2. Center the SIR coil assembly, if needed. Refer to Inflatable Restraint Coil Centering - Off Vehicle (Column Shift And Floor Shift) in Steering Wheel and Column -- Tilt.

    3. Object Number: 322951 Size: SH
  3. Install the existing SIR coil assembly (4) to the steering shaft assembly (2) following these steps:
    4. 3.1. Proceed to the next step if a new SIR coil assembly (4) is needed.
    3.2. Position the SIR coil assembly (4) to the steering shaft assembly (2).
    3.3. Align the opening in the SIR coil assembly (4) with the horn tower (1) and the "locating bump" between the 2 tabs on the lock housing cover and sleeve assembly.
    3.4. Seat the SIR coil assembly (4) onto the steering shaft assembly (2).

    Object Number: 322951 Size: SH
  4. Install a new SIR coil assembly (4) to the steering shaft assembly (2) following these steps:
    5. 4.1. Assemble the pre-centered SIR coil assembly (4) to the steering shaft assembly (2).
    4.2. Position the SIR coil assembly (4) to the steering shaft assembly (2).
    4.3. Align the opening in the SIR coil assembly (4) with the horn tower (1) and the "locating bump" between the 2 tabs on the lock housing cover and sleeve assembly.
    4.4. Remove the centering tab.
    4.5. Dispose of the centering tab.
  5. Install the retaining ring (3) to the steering shaft assembly (2).

    6. Object Number: 323836 Size: SH
  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. Object Number: 176718 Size: SH
  8. Install the steering wheel. Refer to Steering Wheel Replacement in Steering Wheel and Column -- Tilt.
  9. Install the upper and lower shrouds. Refer to Steering Column Trim Cover Replacement - On Vehicle in Steering Wheel and Column -- Tilt.
  10. Install the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  11. Enable the SIR system. Refer to Enabling the SIR System .