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)	Fuse(s) Wiring, terminals or connectors SJB	REFER to MODULE COMMUNICATIONS NETWORK to diagnose the no communication concern.
No power in all ignition switch positions	Fuse Ignition switch Wiring, terminals or connectors SJB	Go to Pinpoint Test A .
No power in ACC	Ignition switch Wiring, terminals or connectors SJB	Go to Pinpoint Test B .
No power in RUN	Ignition switch Wiring, terminals or connectors SJB	Go to Pinpoint Test C .
No power in START	Ignition switch Wiring, terminals or connectors SJB	Go to Pinpoint Test D .
The ignition switch is hard to turn	Key Ignition lock cylinder Ignition lock cylinder housing Ignition switch	Go to the Ignition Switch - Mechanical .
The multi-function switch/hazard switch does not operate correctly	Multi-function switch	Refer to Component Tests .