For 1990-2009 cars

### Removal Procedure

Warning: Refer to Servicing the SIR System Warning in the Preface section.

1. Disable the SIR system. Refer to SIR Disabling and Enabling.
2. Remove the Inflatable Restraint Steering Wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement.
3. Remove the horn plunger from the steering column by pressing inward to the stop and by rotating the plunger 90 degrees.
4. Disconnect the screws (1, 4) from the steering wheel (3).
5. Remove the horn switch (2) from the steering wheel (3).

### Installation Procedure

1. Install the horn switch (2) to the steering wheel (3).

Caution: Refer to Fastener Caution in the Preface section.

2. Connect the screws (1, 4) that secure the contact plate to the steering wheel (3).

Tighten
Tighten the screws to 5.5 N·m (49 lb in).

3. Install the horn plunger to the steering column.
4. Install the inflator module. Refer to Inflatable Restraint Steering Wheel Module Replacement.
5. Enable the SIR system. Refer to SIR Disabling and Enabling.