Hazard Warning Switch: Description and Operation
Multi-Function Switch:
The turn signal and hazard warning switches are integral to the multi-function switch unit, which is secured to the left side of the steering column. The only visible parts of the multi-function switch are the control stalk that extends from the left side of the steering column, and the hazard warning switch push button that protrudes from the top of the steering column. The multi-function switch control stalk has both nomenclature and international control symbols on it, which identify its many functions. The hazard warning switch push button is identified with a double triangle, which is the international control symbol for hazard warning. The remainder of the multi-function switch is concealed beneath the steering column shrouds.
The multi-function switch also contains circuitry for the following functions:
- Headlamp beam selection
- Headlamp optical horn
- Horn contact and circuit
- Windshield wipers
- Windshield washers.
The information contained addresses only the multi-function switch turn signal and hazard warning functions. For information relative to the other systems that are controlled by and circuits that are integral to the multi-function switch. However, the turn signal and hazard warning switches cannot be repaired. If these switches or any other circuit or component of the multi-function switch unit is faulty or damaged, the entire multi-function switch unit must be replaced.
HAZARD WARNING SWITCH
The hazard warning switch is controlled by the hazard warning switch push button. Push the switch button in to unlatch the switch and activate the hazard warning system, and push in ON the button again to latch the switch and turn the system OFF, When the hazard warning switch is latched (hazard warning OFF), the push button will be in a lowered position on the top of the steering column shroud; and, when the hazard warning switch is unlatched (hazard warning ON), the push button will be in a raised position.