Turn Signal Switch: Description and Operation

Fig. 36 Multi-Function Switch:

MULTI-FUNCTION SWITCH
Multi-Function Switch
The turn signals are part of the multi-function switch which contains:
- Electrical circuitry for turn signals.
- Hazard warning switch.
- Headlamp beam select switch.
- Headlamp optical horn.
- Windshield wiper switch.
- Pulse wipe and windshield washer switching.

The integrated switch assembly is mounted to the left hand side of the steering column.

When the driver wishes to signal his intentions to change direction of travel, he moves the lever upward to cause the right signals to flash and downward to cause the left signals to flash. After completion of a turn the system is deactivated automatically As the steering wheel returns to the straight ahead position, a canceling cam molded to the clock spring mechanism comes in contact with the cancel actuator on the turn signal multi-function switch assembly The cam lobe, pushing on the cancel actuator, returns the switch to the OFF position.

If only momentary signaling such as indication of a lane change is desired, the switch is actuated to a left or right intermediate detent position. In this position the signal lamps flash as described above, but the switch returns to the OFF position as soon as the lever is released.

When the system is activated, one of two indicator lamps mounted in the instrument cluster flashes in unison with the turn signal lamps, indicating to the driver that the system is operating.

Hazard Warning System
The hazard warning system is actuated by a push button located on the top of the steering column between the steering wheel and the instrument panel. The hazard switch is identified with a double triangle on top of the button.

Push and release the button to turn the hazard function ON or OFF The button will move out from the steering column in the ON position and will remain in toward the column in the OFF position.