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Symptom Chart: Headlamps

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Service Information for information regarding Ford-specific diagnostic practices.

Symptom Chart: Headlamps 

Condition Possible Sources Actions
A module does not respond to the scan tool Fuse
Wiring, terminals or connectors
Module
REFER to Module Communications Network .
One or both low beams are inoperative Fuse(s)
Bulb
Wiring, terminals or connectors
Headlamp assembly
BCM
GO to Pinpoint Test I .
One or both high beams are inoperative Fuse
Wiring, terminals or connectors
Bulb
LH steering column multifunction switch
Headlamp assembly
SCCM
BCM
GO to Pinpoint Test J .
The low beams are on continuously Wiring, terminals or connectors
Headlamp switch
SCCM
BCM
GO to Pinpoint Test K .
The high beams are on continuously Wiring, terminals or connectors
LH steering column multifunction switch
SCCM
BCM
GO to Pinpoint Test L .
The flash-to-pass feature is inoperative LH steering column multifunction switch
SCCM
BCM
GO to Pinpoint Test M .