The steering column includes the following 3 functions in addition to the steering function:

1. In a front-end collision, the steering column absorbs the energy from the crash. The steering column collapses in order to minimize injury to the driver.
2. The ignition switch locks the ignition switch cylinder and the steering column. This minimizes the chance of vehicle theft.
3. The steering column levers control the following components:

•	The turn signal switch

•	The headlamp switch

•	The headlamp dimmer switch

•	The windshield wiper switch

•	The windshield washer switch

You may service the turn signal switch and the SIR coil as a unit. The switch consists of the following components:

Use the correct fasteners in order to ensure the energy-absorbing action of the steering column. Tighten the fasteners to the correct torque. During assembly, apply a thin layer of grease to all friction points.

Plastic injections keep the column rigid. The following actions may shear or loosen the plastic injections: