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.
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.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
hecking Data stauts receiving from PCM | 1. Poor connection 2. Power supply to Smartkey Unit(SMK IMMO Unit) 3. Communication open/ Short in PCM communication Line 4. Check noise at SMK communication Line coming from PCM 5. Smartkey Unit(SMK IMMO Unit) 6. PCM |
Enable Conditions |
•
Data receiving from PCM when IGN OFF to ON | |
Threshold value |
•
Fault Data receiving from PCM | |
Diagnostic Time |
•
DTC sets if PCM Data errors for 5 times |
