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 non-registered 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.
Driver can check if immobilizer system is verified as monitoring immobilizer lamp. Until engine turns on after successful verification, the lamp is turning "ON".
After IG "ON", immobilizer lamp turns ON for 30 sec., then OFF. If any error of immobilizer system is detected or Key verification fails, lamp blink 5 times, then turns OFF.
* SMARTRA : SMARt TRansponder Antenna
P1692 is set when 1). excessive current is detected in immobilizer control circuit for more than 1.0 sec. or 2). like open of short to ground case, no current is detected at immobilizer lamp ON condition. This code is due to open in immobilizer control circuit or lamp filament.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | ● Voltage monitoring | ● Immobilizer indicator lamp short ● Immobilizer indicator lamp circuit | |
Enable Conditions | ● IG KEY "ON" (monitoring only performed at lamp ON condition) | ||
Threshold Value | ● Short to Battery ● Short to GND, wiring open | ||
Diagnostic Time | ● 1.0 sec. | ||
Fail Safe | Fuel Cut | NO | |
EGR Off | NO | ||
Fuel Limit | NO | ||
Check Lamp | NO |
