FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

General Information





HEV Control System
P1696 Immobilizer-Authentication Fail - 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 DTC P1696 if the data from the ECU do not match the HCU data.

DTC Detecting Condition