Brake Switch

PURPOSE
The PCM uses the brake signal to release the Torque Converter Clutch (TCC) when the brakes are applied.


OPERATION
The brake switch is normally closed when the brake pedal is released. When closed, the switch provides a 12 volt signal to the PCM. When open (brake applied) the PCM receives a 0 volt signal.
DTC 37 or 38 are associated with the brake signal.