Symptom Chart

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. 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)	Circuitry SJB	REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
The courtesy lamps are inoperative	Fuse Circuitry SJB	GO to PINPOINT TEST A .
An individual courtesy lamp is inoperative	Circuitry Interior lamp	GO to PINPOINT TEST B .
The courtesy lamps stay on continuously	Circuitry Door ajar switch Luggage compartment lid ajar switch Dimmer control switch SJB	GO to PINPOINT TEST C .
The courtesy lamps do not turn on with one door open	Circuitry Door ajar switch Luggage compartment lid ajar switch SJB	GO to PINPOINT TEST D .
The demand lamps are inoperative	Circuitry SJB	GO to PINPOINT TEST E .
An individual demand lamp is inoperative	Circuitry Interior lamp	GO to PINPOINT TEST F .
The illuminated entry is inoperative when using the remote keyless entry (RKE) transmitter	RKE system SJB	GO to PINPOINT TEST G .
The battery saver does not deactivate after time-out	Circuitry SJB	GO to PINPOINT TEST H .
The puddle lamps are inoperative	Circuitry Exterior mirror	GO to PINPOINT TEST I .
The courtesy lamps are inoperative from the dimmer control switch	Circuitry Dimmer control switch SJB	GO to PINPOINT TEST J .