Forgotten Key Prevention Function

If the driver's door is locked while open and the key is still in the ignition key cylinder, approximately 0.3 second later the ETACS-ECU activates the unlock relay output for 0.25 second to prevent the door from being locked with the key inside the vehicle. In addition, if locking the door was not prevented, a retry current is sent (an unlock relay output ON is sent for 0.25 second up to 5 times including the first attempt).
If the passenger's door or driver's door are locked while the passenger's door is open and when the key is still in the ignition key cylinder, approximately 0.3 second later the ETACS-ECU activates the unlock relay output for 0.25 second to prevent the door from being locked with the key inside the vehicle. In addition, if locking the door was not prevented, a retry current is sent (an unlock relay output ON is sent for 0.25 second up to 5 times including the first attempt).