Door Motor Control

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Door Motor Control Communication Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.

LCU (Local Control Unit) is built into each door motor. And detects door position by PBR (Potentio Balance Resistor).
A/C auto amp. communicates with each LCU via communication line. And receives each door position feedback signal from each LCU.
Each LCU controls each door to the appropriate position depending on the control signal from A/C auto amp.
Each LCU transmits the signal of door movement completion to A/C auto amp., when the door movement is completed.