Check the continuity when the door key cylinder is operated to the UNLOCK direction.
Connector & terminal
(D82) No. 1 — (D102) No. 3:
Did the indicator change from “No continuity” (1 MΩ or more) to “Continuity exists” (less than 10 Ω)?
Replace the body integrated unit.
Replace the door latch and door lock actuator assembly.