GM Service Manual Online
For 1990-2009 cars only

    Object Number: 664256  Size: SH
  1. Install the turn signal and multifunction switch assembly (2) onto the steering column tilt head assembly.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Be sure that the electrical contact of the turn signal and multifunction switch assembly (2) rests on the turn signal cancel cam assembly.

  3. Screw the 2 pan head tapping screws (1) and (3) into the turn signal and multifunction assembly (2).
  4. Tighten

    • Tighten the top pan head tapping screw (1) to 3 N·m (30 lb in).
    • Tighten the side pan head tapping screw (3) to 7 N·m (62 lb in).

    Object Number: 306234  Size: SH
  5. Slide the 2 connectors (2) of the turn signal and multifunction switch assembly into the bulkhead connector (1).

  6. Object Number: 415293  Size: SH
  7. Connect the turn signal and multifunction switch assembly connector to the inflatable restraint steering wheel module coil connector.
  8. Important: The abrasion sleeve must be installed back onto the steering column wire harness assembly. The electronic lock module assembly wires and connector must be hanging out of the middle of the abrasion sleeve.

  9. Install the wire harness assembly (1) and into the wire harness strap (2).
  10. Install the upper and lower trim covers. Refer to Steering Column Trim Covers - Assemble - Off Vehicle .
  11. Enable the inflatable restraint steering wheel module. Refer to Enabling the SIR System in SIR.