Symptom Chart: Turn Signal and Hazard Lamps
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
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: Turn Signal and Hazard Lamps
| Condition | Possible Sources | Actions |
|---|---|---|
| A module does not respond to the scan tool | Fuse Wiring, terminals or connectors Module |
REFER to Module Communications Network . |
| The turn signal function is inoperative or always on | Multifunction switch SCCM |
GO to Pinpoint Test AM . |
| One turn signal lamp is inoperative or always on - Expedition | Wiring, terminals or connectors Bulb Exterior mirror turn signal lamp BCM |
GO to Pinpoint Test AN . |
| One turn signal lamp is inoperative or always on - Navigator | Wiring, terminals or connectors Exterior mirror turn signal lamp Headlamp assembly Rear lamp assembly Illuminated liftgate applique BCM |
GO to Pinpoint Test AO . |
| The hazard lamp function is inoperative or always on | Wiring, terminals or connectors FCIM BCM |
GO to Pinpoint Test AP . |
| The turn signal indicator flashes fast when no turn signal lamps are inoperative or does not flash fast when a turn signal lamp is inoperative - Navigator | Wiring, terminals or connectors BCM |
GO to Pinpoint Test AQ . |