Symptom Chart

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
No power in all ignition switch positions	Fuse Wiring, terminals or connectors Ignition switch Smart Junction Box (SJB)	GO to PINPOINT TEST A .
No power in ACC	Fuse(s) Wiring, terminals or connectors Ignition switch SJB	GO to PINPOINT TEST B .
No power in RUN	Wiring, terminals or connectors Ignition switch SJB	GO to PINPOINT TEST C .
No power in START	Wiring, terminals or connectors Ignition switch SJB	GO to PINPOINT TEST D .
The ignition key is inoperative/hard to turn	Ignition key Ignition lock cylinder Ignition switch	GO to the IGNITION SWITCH - MECHANICAL .
The ignition key cannot be returned to the OFF position	Wiring, terminals or connectors Ignition lock cylinder Key removal inhibit solenoid (part of the ignition switch) Park range switch (part of the selector lever) Steering column lock module	GO to PINPOINT TEST G .
The ignition key can be turned to the OFF position when the selector lever is not in PARK	Wiring, terminals or connectors Key removal inhibit solenoid (part of the ignition switch) Park range switch (part of the selector lever)	GO to PINPOINT TEST H .
The multifunction switch does not operate correctly	Multifunction switch	For exterior lighting concerns, REFER to DIAGNOSIS AND TESTING . For wiper and washer concerns, REFER to DIAGNOSIS AND TESTING .