DTC U0140-00: Lost Communication With Body Control Module: General Description

As the vehicle became electronically controlled, several control modules were applied to the vehicle. Each of these modules receives information from a number of sensors and carries out control. In this situation, CAN communication, which is strong in electrical noise and capable of high speed communication, was used to control the vehicle's powertrain (ESP, ABS, ECS). Through CAN communication, ESP, ABS module performs active control by sharing signals from engine RPM, APS, transmission and torque.