General Information

Smart Key Unit
B1625 ECM Communication Data Failure - General Information

Component Location





General Description

Smartkey Module communicates with PCM through the serial communication line. If PCM requests authetication from Smartkey Module after IG ON, Smartkey Module check authentication with transponder then, sends this signal to PCM whether authentication is O.K or not.

DTC Description

Smartkey Module sets DTC B1625 if Data from PCM is error such as check sum error, Data Frame error, ID Unknown error, Data length error and Time out error.

DTC Detecting Condition





Diagnostic Circuir Diagram