GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1998 🢒 DeVille 🢒 Steering 🢒 Steering Wheel and Column - Tilt 🢒 Ignition Switch Replacement - On Vehicle

Removal Procedure
  1. Disable the SIR system. Refer to Disabling the SIR System in SIR.

    2. Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  2. Disconnect the negative battery cable.
  3. Remove the knee bolster and IP steering column reinforcement plate. Refer to Knee Bolster Replacement in Instrument Panel, Gauges and Console.

    4. Object Number: 323528 Size: LH
  4. Remove the 2 lower support bracket bolts (7).
  5. Remove the lower support bracket (4) from the vehicle.
  6. Remove the 2 upper column support bolts.
  7. Remove the upper column support from the IP.

    8. Object Number: 323529 Size: LH
  8. Lower the steering column (1). Ensure that the column rests on the driver seat.
  9. Remove the ignition switch wiring protector.
  10. Remove the headlamp dimmer switch retaining screw and the nut.
  11. Remove the ignition switch retaining screw.

    12. Remove the switch.

  12. Disconnect the ignition and turn signal switch from the IP harness.
  13. Disconnect the following column harness connectors from the IP harness:
    14. • The ignition switch
    • The turn signal switch

    Important: Do NOT splice the ignition switch wires.

  14. Remove or disconnect the following components:
    15. • The ignition switch
    • The harness
    • The connector
  15. Disconnect the turn signal and steering wheel control switches.
  16. Insert a screwdriver blade into the ignition switch rod slot and move the switch to the run position.
  17. Remove the park lock cable from the inhibitor.
  18. Remove ignition switch from the vehicle.

Installation Procedure

    Object Number: 323529 Size: LH
  1. Install the ignition switch into the vehicle.
  2. Install the park lock cable to the switch.
  3. Insert a screwdriver blade into the ignition switch slot and turn the switch to the lock position:
    4. 3.1. Position the ignition switch.
    3.2. Insert the control rod.
    3.3. Install the bolt.
    3.4. Perform adjustment as needed.
  4. Connect the following column harness connectors to the IP harness:
    5. • The ignition switch
    • The turn signal switch
  5. Connect the column harness to the IP harness.
  6. Secure the harness with the bolt.
  7. Adjust the ignition switch. Refer to Steering Column Replacement .
  8. Connect the turn signal switch connector to the column harness.
  9. Install the ignition switch wiring protector.
  10. Install the headlamp dimmer switch. Secure the headlamp dimmer switch with the bolt and the nut. Perform adjustments as needed.
  11. Connect the electrical connector to the headlamp dimmer switch.
  12. Install the steering column harness into the wiring protector.
  13. Raise the steering column (1) to the support bracket.
  14. Install the 2 bolts to the upper support bracket. Do not fully tighten the bolts at this time.

    15. Object Number: 323528 Size: LH

    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.

  15. Use the following procedure in order to install the bolt (7) and the nut to the lower support bracket (4):
    16. 15.1. Align the column with the instrument panel opening.
    15.2. Place a shim (wedge) between the instrument panel column support bracket and the column in order to hold the column stationary while tightening the upper support bolts.

    Tighten
    Tighten the upper and lower column support bolts and nuts to 27 N·m (20 lb ft).

  16. Install the IP steering column reinforcement plate and knee bolster. Refer to Knee Bolster Replacement in Instrument Panel, Gauges and Console.
  17. Connect the battery negative cable.
  18. Enable the SIR system. Refer to Enabling the SIR System in SIR.