DTC C1702: Variant Coding Error: General Description

There is no hardware difference of the Hydraulic and Electronic Control Unit (HECU) according to the vehicle's specification, just software is changed by the vehicle parameter used for Electronic Stability Program (ESP, Electronic Stability Control/ESC) control. The HECU stores a classified variant code value according to the received data (a kind of engine, engine displacement, a kind of transmission). After then the HECU reads various parameters according to the stored variant value in the memory to use for the ESP (ESC) control.