Courtesy/Illuminated Entry Lamps (Luxury-Y91)

The courtesy/illuminated entry lamps, may be manually turned on or off by placing the interior lamp switch in the ON or OFF position. When the driver places the dome lamp defeat switch in the ON position, the courtesy/illuminated entry lamps will be disabled. If an outside door handle is lifted or a door is opened, the courtesy/illuminated entry lamps illuminate. After all the doors have been closed the courtesy/illuminated entry lamps will remain illuminated approximately 15 seconds. The courtesy/illuminated entry lamps will also turn on prior to any door being opened, and remain illuminated approximately 40 seconds when the driver removes the ignition key.

The courtesy/illuminated entry lamps, include two different groups of lamps. The first group includes these courtesy/illuminated entry lamps which are not individually controlled:
^ Console courtesy lamps
^ Dome lamps
^ Door courtesy lamps
^ I/P courtesy lamps

These lamps illuminate when a door jamb switch courtesy lamp switch or a Remote Keyless Entry (RKE) command is received by the Body Control Module (BCM).

The CTSY LP 15 A fuse in the engine wiring harness junction block, supplies battery positive voltage to the inadvertent power relay coil and switch circuits.

When a courtesy lamp request input is received by the body control module (BCM), the BCM provides ground to the inadvertent power relay to signal the courtesy lamp module. The courtesy lamp module provides Pulse Width Modulation (PWM) voltage to the courtesy lamps. Ground is provided at all times at G203

The courtesy lamps will normally turn off using the theater dimming feature controlled by BCM with PWM. The BCM will immediately turn off the courtesy lamps if a door lock command is received with all the doors closed, or if the ignition switch is turned to either the ON or RUN position.

The second group includes these individually controlled lamps, each with a separate switch:
^ I/P compartment lamp
^ Map lamps
^ Reading lamps
^ Underhood lamp
^ Vanity mirror lamps

The CTSY LP 15 A fuse in the engine wiring harness junction block, supplies battery positive voltage to the inadvertent power relay coil and switch circuits. The body control module (BCM) provides ground to energize the inadvertent power relay and power these lamps. Ground is provided to the I/P compartment lamp at G200. Ground is provided to the Underhood lamp at G102. All others are grounded at G203.

For a description of the RPO Code(s) shown in this article or any of the images therein, refer to the RPO Code List found at Vehicle/Application ID". RPO Codes