B250 3/4 Ton Van V8-318 5.2L VIN T FI (1992)
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.
