Smartkey Module communicates with ECM through the serial communication line. If ECM requests authetication from Smartkey Module after IG ON, Smartkey Module check authentication with transponder then, sends this signal to ECM whether authentication is O.K or not.
Smartkey Module sets DTC B1625 if Data from ECM is error such as check sum error, Data Frame error, ID Unknown error, Data length error and Time out error.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Check received Data Status from ECM |
•
Poor Connection in Harness
•
Input Power to Smartkey Module
•
Open or short in EMS communication line.
•
Faulty Smartkey Module
•
Faulty ECM |
Enable Conditions |
•
Data that Smartkey Module received from ECM is error after IGN OFF to IGN ON | |
Threshold value |
•
Received data error from ECM | |
Failsafe |
•
- |
