Symptom Chart

WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the smart junction box (SJB)	Wiring, terminals or connectors SJB	REFER to MODULE COMMUNICATIONS NETWORK article.
No communication with the liftgate/trunk module (LTM)	Wiring, terminals or connectors LTM	REFER to MODULE COMMUNICATIONS NETWORK article.
The courtesy lamps flash on and off	The SJB is not configured correctly.	CONFIGURE the SJB. REFER to MODULE CONFIGURATION article. TEST the system for normal operation.
The courtesy lamps are inoperative	Fuse Wiring, terminals or connectors SJB	Go to Pinpoint Test A .
The courtesy lamps stay on continuously	Wiring, terminals or connectors Door ajar switch Liftgate ajar switch Instrument panel dimmer switch (part of the headlamp switch) LTM SJB	Go to Pinpoint Test B .
An individual courtesy lamp is inoperative	Wiring, terminals or connectors Interior lamp	Go to Pinpoint Test C .
The courtesy lamps do not turn on with one door open	Wiring, terminals or connectors Door ajar switch SJB	Go to Pinpoint Test D .
The courtesy lamps do not turn on with the liftgate open	Wiring, terminals or connectors Liftgate ajar switch Rear wiper motor LTM SJB	Go to Pinpoint Test E .
The courtesy lamps are inoperative - from the dimmer switch	Wiring, terminals or connectors Instrument panel dimmer switch (part of the headlamp switch) SJB	Go to Pinpoint Test F .
The puddle lamp(s) are inoperative	Fuse Wiring, terminals or connectors Exterior mirror Puddle lamp SJB	Go to Pinpoint Test G .
The puddle lamps stay on continuously	Wiring, terminals or connectors SJB	Go to Pinpoint Test H .
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 luggage compartment lamp is inoperative/does not operate correctly	Wiring, terminals or connectors Luggage compartment lamp Luggage compartment lid latch	Go to Pinpoint Test K .
The battery saver does not deactivate after time-out	Wiring, terminals or connectors SJB	Go to Pinpoint Test L .
The illuminated entry is inoperative when using the integrated keyhead transmitter (IKT)	IKT system SJB	Operate the door locks from the IKT. If the door locks operate correctly, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation. If the door locks do not operate correctly, REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS article.