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Home >> Lincoln >> 2019 >> Navigator L Select, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Exterior Lighting (Description & Operation - Diagnosis & Testing) >> Diagnosis And Testing >> Headlamps >> Symptom Chart: Headlamps

Symptom Chart: Headlamps

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Condition Possible Sources Actions
A module does not respond to the diagnostic scan tool Fuse
Wiring, terminals or connectors
Module
REFER to: Communications Network .
One or both low beams is inoperative Refer to the Pinpoint Test GO to Pinpoint Test A 
One or both high beams is inoperative Refer to the Pinpoint Test GO to Pinpoint Test B 
One or both low beams are on continuously Refer to the Pinpoint Test GO to Pinpoint Test C 
One or both high beams are on continuously Refer to the Pinpoint Test GO to Pinpoint Test D 
The flash-to-pass feature is inoperative Refer to the Pinpoint Test GO to Pinpoint Test E 
The automatic high beam feature is inoperative Refer to the Pinpoint Test GO to Pinpoint Test F 
The adaptive front lighting/automatic headlamp leveling is inoperative/does not operate correctly Refer to the Pinpoint Test GO to Pinpoint Test P