Security Indicator Operation

The "SECURITY" Indicator is controlled directly by the Body Control Module (BCM). The following describes the modes of indicator operation:
1. When the Ignition is put in "RUN," "BULB TEST," or "START," the "SECURITY" Indicator illuminates for about five seconds as a bulb check.
2. If the BCM is actively in the shut down mode and thus preventing the vehicle from starting, the indicator will be illuminated (grounded) by the Body Control Module for 3 minutes + or - 18 seconds after Ignition is turned on.
3. If the resistor sensing contacts or CKTs 1073 or 1074 are open or shorted, or if a defective key is being used at the time Ignition is turned on, the "SECURITY" Indicator will flash at a rate of once per second and the Engine will not start; however, the 3 minute + or - 18 second lockout will not be activated. Additionally, if an unprogrammed module is present and there is an open or short, or if a defective key is being used the BCM will not program a key code, the "SECURITY" Indicator will flash at a rate of once per second, and the Engine will start.
4. Lock Cylinder CKTs 1073 and 1074 are continuously monitored and if a fault is detected in these circuits for one minute, the indicator will turn on. If the fault condition goes away for one minute, the indicator will turn off and the system will function as normal. If a lock cylinder circuit fault (lock cylinder contacts or wiring becomes open or shorted, or if a defective key is detected) while the Engine is running, the vehicle can be restarted. The "SECURITY" Indicator will illuminate during this Ignition cycle while the fault is present. When a fault condition is present at the time Ignition is cycled off, the vehicle will not be protected by the PASS-Key (R) II System and the indicator will be illuminated whenever the Ignition is on, until the fault is corrected. This is called the Fault Enable Mode. After the fault has been corrected, the "SECURITY" Indicator will remain on for approximately one minute then turn off.