Brake Switch - TCC: Description and Operation

DESCRIPTION
This electrical switch is used to indicate brake pedal status. This switch is normally closed when the brake pedal is not applied When the brake pedal is applied the switch will open, changing the signal to the PCM. The PCM uses this signal to de-energize the Torque Converter Clutch (TCC) solenoid when brake pedal is applied. The TCC brake switch is located on the brake pedal mounting bracket.