Component Location
1.Smartkey Module
2.PCM/ECM
General Description
The PCM/ECM controls the engine, in a normal way for starting and running, and starts communication with the Smart Key ECM, sending a PIN request to the Smart Key ECM and waiting for valid release message from it until the release time period has ended.
In case of Smart Key ECM immobilizer function is locked, the Smart Key ECM answer is the no release message. PCM/ECM enters in the locked state, which causes theactivation of the imobilization actions of the engine.
In case of Smart Key ECM immobilizer function state is released, the Smart Key ECM answer is the release message, including the information Smart Key ECM inlearnt mode and the PIN code.
DTC Description
This DTC is set, after PCM/ECM sends wake-up signal, if response signal from Smart key ECM is abnormal structure or is not valid message during PCM/ECM communication
DTC Detecting Condition
Item | Detecting Condition | Possible Cause |
Enable Conditions | IG ON
| Faulty Smart Key ECM |
Detecting time | 1.5 sec.
|
Threshold value | Data error or timing error 1. Data error : Head value error, checksum value error, Smart Key status unknown error 2. Timing Error : : Interval time of response from Smart key ECM after ECM request signal is longer than 40ms
|
Diagnostic Circuit Diagram