B3000 DS Cab Plus 2WD V6-3.0L OHV (2001)
Brake Fluid Pressure Sensor/Switch: Description and Operation
Brake Pressure Switch Description and Operation
The BPS serves two purposes; first, it is an input to the ABS control module to indicate that pressure exists in the Brake Master Cylinder, second, it is a
back up input to the PCM for cruise control, it indicates the brake pedal has been pressed in addition to the Brake On Off (BOO) switch. (For cruise
control the Brake Pressure Switch is sometimes referred to as the Deactivator Switch).
The BPS is a normally closed switch. It provides a B+ signal to the ABS control module, this switch opens circuit momentarily when the brake pedal is
pressed hard.
