Feature Customization - Door Key Unlock Illumination (BCM Type 4 Only)

The BCM grounds CKT 690 for 36-44 seconds activating the interior courtesy lights, when the following conditions are met:
- The ignition switch is in the LOCK or the OFF position.
- The interior lamps override switch is in the ON position (interior courtesy lights enabled).
- Unlock the left front, the right front or the liftgate door using a door key cylinder lock (grounding CKT 781).