Brake Signal: Description and Operation

LOCATION

Switch mounted on brake pedal support bracket.


PURPOSE

Allows Engine Controller to monitor brake application.


OPERATION

The switch closes when pedal is depressed.

The engine controller uses switch input to determine engine load and maintain idle speed.

The engine controller vents speed control system vacuum and turns speed control system OFF when brake switch actuation is sensed.

The brake switch is also used as an input to signal deceleration.