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Home >> Cadillac >> 2007 >> STS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 428 (Lighting System) >> Description and Operation >> Interior Lighting Systems Description and Operation >> Courtesy/Illuminated Entry Lamps >> Exit Lighting
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Exit Lighting

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.

Exit lighting is activated when the following conditions exists. The RIM receives a GMLAN serial data message from the instrument panel cluster (IPC) indicating that the ignition key has been removed from the lock cylinder, the ambient light sensor status is dark and all the doors are closed. At this time the RIM will illuminate the interior lamps. During this exit lighting feature, the RIM will also request that the driver door module (DDM) illuminate the driver door switch back lighting at full intensity. The RIM will theater dim the interior lamps after 20-25 seconds. If the key is place back into the lock cylinder before the lamps have dimmed, the RIM will immediately activate the theater dim feature.

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