Symptom Chart: Interior Lighting

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Service Information for information regarding Ford-specific diagnostic practices.

Condition	Possible Sources	Actions
A module does not respond to the scan tool	Fuse Wiring, terminals or connectors Module	REFER to Module Communications Network .
The courtesy lamps do not illuminate with a door open	Wiring, terminals or connectors Door latch BCM	NOTE: Make sure that the dark car feature is not enabled in the BCM. The dark car feature disables activation of courtesy lamps due to a door unlock, door ajar or removing the key from the ignition cylinder (vehicles without puch buton start). The feature can be disabled using a scan tool. GO to Pinpoint Test A .
The courtesy lamps do not illuminate with the liftgate or liftgate glass open	Wiring, terminals or connectors Liftgate latch (manual liftgate) LTM (power liftgate) Liftgate glass latch BCM	NOTE: Make sure that the dark car feature is not enabled in the BCM. The dark car feature disables activation of courtesy lamps due to a door unlock, door ajar or removing the key from the ignition cylinder (vehicles without puch buton start). The feature can be disabled using a scan tool. GO to Pinpoint Test B .
The courtesy lamps do not illuminate from the courtesy lamp switch	Courtesy lamp switch (integrated into the instrument panel dimmer switch)	GO to Pinpoint Test C .
One or more interior courtesy lamps are inoperative	Fuse Wiring, terminals or connectors Interior lamp BCM	GO to Pinpoint Test C .
One or both puddle lamps are inoperative	Wiring, terminals or connectors Puddle lamp BCM	GO to Pinpoint Test D .
All the courtesy lamps stay on continuously	Wiring, terminals or connectors Door latch Liftgate latch (manual liftgate) LTM (power liftgate) Liftgate glass latch BCM	GO to Pinpoint Test E .
The interior courtesy lamps stay on continuously	Wiring, terminals or connectors BCM	GO to Pinpoint Test F .
The puddle lamps stay on continuously	Wiring, terminals or connectors BCM	GO to Pinpoint Test G .
One or more demand lamps are inoperative	Fuse Wiring, terminals or connectors Interior lamp BCM	GO to Pinpoint Test H .
The battery saver does not deactivate after timeout	Wiring, terminals or connectors BCM	GO to Pinpoint Test I .
The ambient lighting is inoperative	Wiring, terminals or connectors HVAC module	GO to Pinpoint Test J .
The ambient lighting does not cycle through all color combinations	Wiring, terminals or connectors HVAC module	GO to Pinpoint Test K .
An individual ambient lighting LED is inoperative/does not cycle through all color combinations	Wiring, terminals or connectors Ambient lamp	GO to Pinpoint Test L .