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Home >> Chevrolet >> 2001 >> Impala Base, 3.8 K >> Repair and Diagnosis >> External Pages >> Different car >> Section 504 (Lighting Systems) >> Description and Operation >> Interior Lighting Systems Description and Operation >> Courtesy/Illuminated Entry Lamps

Courtesy/Illuminated Entry Lamps

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.

When the body control module (BCM) is in an active state (awake) it energizes the courtesy lamps supply voltage circuit. The courtesy lamps supply voltage circuit supplies voltage to all of the interior lamps, including the illuminated entry lamps (courtesy lamps). The illuminated entry lamps are turned on when they receive a ground from the interior lamp control circuit of the BCM. When the ignition is in the LOCK position the BCM will energizes the interior lamp control circuit under the following conditions:

When the courtesy lamps supply voltage circuit and the interior lamp control circuit are active the courtesy/illuminated entry lamps will illuminate. The courtesy lamps/illuminated entry lamps include the following interior lamps:

When the driver uses the remote function actuator transmitter to unlock the doors, the BCM will illuminate the courtesy lamps for approximately 40 seconds, unless another BCM function causes the lamps to remain active. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn off immediately.

When a door open signal is active with the ignition in the OFF position the BCM will illuminate the courtesy lamps for approximately 25 seconds, unless another BCM function causes the lamps to remain active. If the ignition switch is turned to either the RUN or START position the courtesy lamps will turn off immediately.