Symptom Chart

WARNING: This page is about a different car, the 2004 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)	Battery junction box (BJB). BJB fuse 9 (40A). SJB. SJB fuse 1 (50A). Circuitry.	REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
The ignition switch is inoperative	Battery junction box (BJB). BJB fuse 9 (40A). Ignition switch. Circuitry.	Go To PINPOINT TEST A: THE IGNITION SWITCH IS INOPERATIVE .
No power in ACC	Ignition switch. Circuitry.	Go To PINPOINT TEST B: NO POWER IN ACC .
No power in RUN	Ignition switch. Circuitry.	Go To PINPOINT TEST C: NO POWER IN RUN .
No power in START	Ignition switch. Circuitry.	Go To PINPOINT TEST D: NO POWER IN START .
The multifunction switch/hazard switch does not operate correctly	Multifunction switch.	Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.