Corolla LE Sedan L4-1.8L (1ZZ-FE) (1999)
Brake Switch - TCC: Description and Operation
The purpose of this circuit is to prevent the engine from stalling, while driving in lock-up condition, when brakes are suddenly applied.
When the brake pedal is operated, this switch sends a signals to ECM. Then the ECM cancels operation of the lock-up clutch while braking is in
progress.