DTC C1684, C1685: 4WAS Main Control Unit Communication: Description

4WAS front control unit and 4WAS main control unit transmit/receive information to/from each other for optimum control of the 4WAS system with the specified 4WAS system line (4WAS communication line) between 4WAS front control unit and 4WAS main control unit.
Be careful to repair wirings because 4WAS system specified line adopts twisted-pair wires. Refer to "PRECAUTIONS FOR HARNESS REPAIR ".