F 150 4WD V8-5.4L Flex Fuel (2008)
Vehicles Equipped Without Remote Keyless Entry (RKE)
The IC illuminates the courtesy lamps and puddle lamps (if equipped) when any door is open and the dimmer switch is not in the DEFEAT position.
The IC turns the courtesy lamps and puddle lamps (if equipped) off when the doors are closed.
Demand Lamps/Battery Saver
Power to the on-demand lamps, the illuminated vanity mirrors and the map lamps are controlled by the battery saver relay. The battery saver uses the
following times for the specific feature to be turned off:
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Courtesy lamps with the dome lamp off, 10 minutes.
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Courtesy lamps with the dome lamp on, 30 minutes.
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Warning chimes, 30 minutes.
The IC controls the courtesy lamps illuminated entry feature by activating the battery saver relay. The battery saver shutoff time begins when the
ignition is turned to the OFF position.
