Back Door Entry Lock Function does not Operate: Description

When the lock switch built into the back door outside handle is turned on, a lock switch ON signal is transmitted to the certification ECU, and a request signal is then transmitted to both the indoor electrical key oscillator and door electrical key oscillator by the certification ECU. Upon receipt of the request signal, the electrical key transmitter transmits an ID code to the certification ECU. When the certification ECU recognizes that the key is not in the cabin and is outside the vehicle, a door lock signal is transmitted to the main body ECU, causing all the doors to be locked.