Symptom Chart

WARNING: This page is about a different car, the 2007 Ford Ranger. 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 MODULE COMMUNICATIONS NETWORK article.
Both headlamps are inoperative	Fuse Circuitry Headlamp switch Multifunction switch SJB	Go to Pinpoint Test A .
The low beams are inoperative	Circuitry Multifunction switch SJB	Go to Pinpoint Test B .
The high beams are inoperative	Fuse Circuitry Multifunction switch SJB	Go to Pinpoint Test C .
One low beam headlamp is inoperative	Fuse Circuitry SJB	Go to Pinpoint Test D .
One high beam headlamp is inoperative	Circuitry	REPAIR circuit CBP14 (VT/OG). TEST the system for normal operation.
The headlamps are on continuously	Circuitry Headlamp switch Multifunction switch SJB	Go to Pinpoint Test E .
The flash-to-pass feature is inoperative	Fuse Circuitry Multifunction switch SJB	Go to Pinpoint Test F .