General Information

Component Location





General Description

There is no hardware difference of the HECU according to the vehicle's specification, just software is changed by the vehicle parameter used for ESC control. The HECU stores a classified variant code value according to the received data (a kind of engine, engine displacement, a kind of T/M). After then the HECU read a various parameter according to the stored variant value in the memory to use for the ESC control.

DTC Description

The HECU checks the variant code after ignition. If a inappropriate variant code is detected or there is no variant code, a fault is detected.

DTC Detecting Condition