The PCM/ECM controls the engine, in a normal way for starting and running, and starts communication with the Smart Key PCM/ECM, sending a PIN request to the Smart Key PCM/ECM and waiting for valid release message from it until the release time period has ended.
In case of Smart Key PCM/ECM immobilizer function is locked, the Smart Key PCM/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 PCM/ECM immobilizer function state is released, the Smart Key PCM/ECM answer is the release message, including the information Smart Key PCM/ECM inlearnt mode and the PIN code.
This DTC is set, after Engine PCM/ECM sends wake-up signal, if response signal from Smart key PCM/ECM is abnormal structure or is not valid message during engine PCM/ECM communication.
Item | Detecting Condition | Possible Cause |
Enable Conditions |
•
IG ON | 1. Faulty Smart Key PCM/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 PCM/ECM after PCM/ECM request signal is longer than 40ms |
