Cutlass Supreme V6-3100 3.1L MFI VIN M (1994)
Brake Light Switch: Description and Operation
PURPOSE AND OPERATION
The brake switch is a normally closed switch that provides a constant voltage signal to a terminal of the PCM. When the brake pedal is depressed, the
switch opens and the signal is interrupted, indicating to the PCM that the brakes are applied. The PCM responds by turning "OFF" the torque converter
clutch and the cruise control.