Back Door Entry Lock and Unlock Functions do not Operate [11/2018 - ]: Description

If the entry lock and unlock functions do not operate for the back door only, the request code may not be being transmitted from the back door opener switch assembly. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and door control receiver assembly is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and electrical key antenna (outside luggage compartment)), or there may be electric wave interference.