SMARTRA type immobilizer is an anti-theft device which allows engine to turn ON only when the key recognized in Transponder is inserted in the key hall.
After checking that the inserted key is registered, immobilizer module transmits engine ON permitting signal to ECM.
If engine is tried to turn ON when nonregistered key is inserted in the key hall or no key signal is detected (buglary), immobilizer module transmits engine ON prohibitting order to ECM and injector operation is disabled.
* SMARTRA : SMARt TRansponder Antenna
P1690 is set when no message is transmitted from immobilizer because of the problem in communication line between immobilizer module(SMARTRA) and ECM or failure of module.
Refer to immobilizer system DTC guide for more detailed information.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | ● Signal monitoring | ● Refer to DTC guide of Immobilizer system | |
Enable Conditions | ● IG KEY "ON" | ||
Threshold Value | ● Faulty SMARTRA | ||
Diagnostic Time | |||
Fail Safe | Fuel Cut | NO | |
EGR Off | NO | ||
Fuel Limit | NO | ||
Check Lamp | NO |