General Information

HEV Control System
P1679 Immobilizer-EMS Data Fail (Data frame, CS, Message error) - General Information

Component Location





General Description

Immobilizer system performs mutual authentication among Key, SMK, HCU and Engine ECU. With this authentication, Immobilizer system allows to start Main Motor and Engine running.

DTC Description

The HCU sets P1679 when the HCU can not receive data related immobilizer authentication from EMS.

DTC Detecting Condition