DTC P1780 Torque Control Signal Failure: General Description

Many control units is applied to the vehicle due to vehicle to be electronic control type and these perform many controls by receiving signals from sensors. So the common use of each sensors and the need of communizing informations became a prominent figure. CAN communication method is used at power train (ABS, transmission, engine, ECS etc) control of vehicle because it withstands electronically external noise by spark and can high-speed communication. Though CAN communication, ECM and TCM hold engine RPM, APS, step of transmission, decreasing of torque in common and perform the active control.