Aurora V8-4.0L VIN C (1996)
Brake Signal: Description and Operation
BRAKE SWITCHES
This vehicle is equipped with two brake switches each containing multiple sets of contacts and performing several functions. Both switches are located
under the left hand side of the Instrument Panel on the brake pedal support.
TORQUE CONVENER CLUTCH (TCC) BRAKE SWITCH
The Torque Converter Clutch (TCC) Brake Switch contains two sets of (normally closed) electrical contacts referred to as the Torque Converter
Clutch (TCC) Brake and Extended Travel Brake Switch contacts. The TCC brake switch contacts provide brake status to the PCM for torque
converter clutch control. The extended travel brake switch contacts are used in Torque Management to determine whether the brakes are applied.
STOP/BTSI/CRUISE BRAKE SWITCH
The Stop/BTSI/Cruise Brake Switch contains three sets of electrical contacts. Two sets of contacts are normally closed and one set is normally open.
The one normally open set of contacts is referred to as the stop lamp switch contacts and supplies power to the stop lamps when the brakes are
applied. One set of normally closed contacts is referred to as the BTSI brake switch contacts and supplies power to the BTSI solenoid when the brakes
are not applied. The other normally closed set of contacts is referred to as the cruise brake switch contacts and is used to disengage cruise when the
brakes are applied.
