DTC C1817-08: Sub CAN Timeout: General Description

The ESC sends requirement data, such as torque reduction, the number of fuel cut cylinders, and the ESP (ESC) control request, to the ECM through CAN bus line. The ECM performs the fuel cut function according to a request signal from the ESC and then retards an ignition timing. The ECM maintains current gear position during the ESP (ESC) control period in order not to increase power which causes a Kickdown shift.