Turn the vehicle to the OFF (LOCK) mode.

Disconnect the connector (A) by pushing the lock (B) and Pull down the lever (C); the connector disconnects itself.

Loosen the real time real time AWD control unit mounting bolts (D), then remove the real time AWD control unit (E).

Install the real time AWD control unit (A).

Align the connecting surface of the connector (B).

Pulling up the lever (C) of the connector, then confirm the connector is fully seated.