Symptom Chart

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
The courtesy lamps flash on and off	Smart Junction Box (SJB) is not configured correctly	CONFIGURE the SJB . REFER to MODULE CONFIGURATION . TEST the system for normal operation.
The courtesy lamps do not illuminate with a door open	Wiring, terminals or connectors Door ajar switch SJB	GO to PINPOINT TEST A .
The courtesy lamps do not illuminate with the liftgate open	Wiring, terminals or connectors Liftgate ajar switch Liftgate/Trunk Module (LTM) SJB	GO to PINPOINT TEST B .
The courtesy lamps do not illuminate from the instrument panel dimmer switch	Wiring, terminals or connectors Instrument panel dimmer switch SJB	GO to PINPOINT TEST C .
The interior courtesy lamp (s) are inoperative	Fuse Wiring, terminals or connectors Interior lamp SJB	GO to PINPOINT TEST D .
The puddle lamp(s) are inoperative	Fuse Wiring, terminals or connectors Exterior mirror SJB	GO to PINPOINT TEST E .
All the courtesy lamps stay on continuously	Wiring, terminals or connectors Door ajar switch Liftgate ajar switch Instrument panel dimmer switch LTM SJB	GO to PINPOINT TEST F .
The interior courtesy lamps stay on continuously	Wiring, terminals or connectors SJB	GO to PINPOINT TEST G .
The puddle lamps stay on continuously	Wiring, terminals or connectors SJB	GO to PINPOINT TEST H .
All the demand lamps are inoperative	Fuse Wiring, terminals or connectors SJB	GO to PINPOINT TEST I .
An individual demand lamp is inoperative	Wiring, terminals or connectors Interior lamp	GO to PINPOINT TEST J .
The battery saver does not deactivate after timeout	Wiring, terminals or connectors SJB	GO to PINPOINT TEST K .
The ambient lighting is inoperative	Fuse Wiring, terminals or connectors Ambient lighting harness Ambient lighting switch Ambient lighting module	GO to PINPOINT TEST L .
An individual ambient lamp is inoperative/does not display all colors	Ambient lighting harness	INSTALL a new ambient lighting harness in question. TEST the system for normal operation.
The ambient lighting does not cycle through all color combinations	Wiring, terminals or connectors Ambient lighting harness Ambient lighting switch Ambient lighting module	GO to PINPOINT TEST M .