WHEN I STEP ON THE BRAKE PEDAL WITH THE ENGINE ...
2007 Toyota Corolla
December, 16, 2012 AT 3:27 PM
When I step on the brake pedal with the engine off the dash board lights light up and the seat belt indicator buzzer sound When the engine is running it does not do that. The computer error # is PO 724
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 depressed, this switch sends a signals to the ECM. Then the ECM cancels the operation of the lock-up clutch while braking is in progress.
This DTC indicates that the stop light switch remains on. When the stop light switch remains ON during "stop and go" driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM stores the DTC. The vehicle must stop(less than 3 km/h (2 mph)) and go (30 km/h (19 mph) or more) 5 times for two driving cycles in order to detect a malfunction.