Driver Side Door Entry Lock Function does not Operate: Description

If the driver door entry lock function does not operate but the entry unlock operation operates, the communication line between the vehicle and electrical key transmitter is normal. Either of the following may have occurred: 1) the entry lock switch is malfunctioning; or 2) the front door ECU LH receives the entry lock switch ON signal, but is unable to send the signal to the certification ECU through CAN communication.