GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 Cutlass 🢒 Restraints 🢒 SIR 🢒 Steering Wheel Inflatable Restraint Module Coil Replacement

Removal Procedure
  1. Disable the SIR system. Refer to Disabling the SIR System .
  2. Remove the steering wheel assembly. Refer to Steering Wheel Replacement .
  3. Remove the tilt lever. Refer to Tilt Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt.
  4. Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.
  5. Disconnect the SIR wiring harness from the back of the fuse panel.
  6. Remove the multi-function lever. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel Column-Tilt.

    7. Object Number: 399067 Size: SH
  7. Remove the coil assembly retaining clip (3).
  8. Cut the plastic zip tie in order to remove the SIR coil wiring harness.
  9. Remove the coil assembly (1).

Installation Procedure

    Object Number: 399067 Size: SH

    Important: 

       • When re-installing a previously removed coil assembly go to step 1.
       • When installing a new coil assembly go to step 2.

  1. Install the coil assembly (1) to the steering column. Ensure that the coil assembly is centered.

    2. Important: The coil assembly becomes un-centered under the following conditions:

       • The steering column is separated from the steering gear and allowed to rotate.
       • The centering spring is pushed down, letting the hub rotate while the coil is removed from the steering column.

    Important: When installing the coil assembly use the following components for alignment:

       • The horn tower on the cancelling cam assembly inner ring
       • The projections on the outer ring

  2. Assemble the pre-centered coil assembly to the steering column. Remove the centering tab. Discard the tab.
  3. Install the coil assembly retaining ring (2). Ensure that the ring is firmly seated in the groove on the shaft.

    4. Important: Gently pull on the lower coil assembly wire in order to remove any wire kinks inside of the column assembly. Ensure that there are NO kinks or bends in the SIR coil assembly wire. If a kink or bend is present, interference may occur with the shaft lock mechanism. Turning the steering wheel may cut or damage the wire.

  4. Route the SIR coil wiring harness. Install new plastic zip ties.
  5. Install the coil assembly retaining clip (3).
  6. Connect the SIR harness to the back of the fuse panel.
  7. Install the instrument panel carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.
  8. Install the tilt lever. Refer to Tilt Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt.
  9. Install the steering wheel assembly. Refer to Steering Wheel Replacement in Steering Wheel and Column-Tilt.
  10. Enable the SIR system. Refer to Enabling the SIR System .