Symptom Chart

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. 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)	Fuse Wiring, terminals or connectors SJB	REFER to MODULE COMMUNICATIONS NETWORK article.
Both fog lamps are inoperative	Fuse Wiring, terminals or connectors Headlamp switch SJB	Go to Pinpoint Test Q .
An individual fog lamp is inoperative	Wiring, terminals or connectors	Go to Pinpoint Test R .
The fog lamps are on continuously	Wiring, terminals or connectors Headlamp switch SJB	Go to Pinpoint Test S .
The fog lamps on indicator is inoperative	Wiring, terminals or connectors Headlamp switch SJB	Go to Pinpoint Test T .