Symptom Chart

WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The horn is inoperative	Fuse Wiring, terminals or connectors Horn Horn relay Steering wheel switch harness Clockspring Horn switch (part of the driver air bag module and the steering wheel)	Go to Pinpoint Test A .
The horn is always on	Wiring, terminals or connectors Horn relay LCM Clockspring Horn switch (part of the driver air bag module and the steering wheel) Steering wheel switch harness	Go to Pinpoint Test B .