2002 Ford Expedition / Navigator Headlight & Fog Lamp Wiring Diagram

This is a scanned exterior lighting wiring diagram covering the headlamp and fog lamp circuits for a Ford Expedition / Lincoln Navigator (splice callouts S104 'EXPEDITION' and S103 'NAVIGATOR' appear at the right headlamp ground path). Power feeds include a Hot-in-Start-or-Run feed through Central Junction Box Fuse 29 (5A), a Hot-at-All-Times feed through Battery Junction Box Fuse 3 (30A), and another Hot-at-All-Times feed through Fuse 9 (15A). The diagram traces circuits through the Autolamp Module, Central Security Module, Main Light Switch (OFF/PARK/HEAD/AUTO positions), Multi-Function Switch (HI/LO/PASS), Headlamp Relay in the RPO Relay Box, Central Junction Box fuses 16 (20A), 28 (10A), and 27 (5A), the Fog Lamp Switch with Fog-On Indicator, Fog Lamp Relay in the Battery Junction Box, the Hi-Beam Indicator in the instrument cluster, and both left/right headlamps and fog lamps. Wire colors (RED/YEL, DK BLU/ORG, LT GRN/BLK, DK BLU/WHT, DK GRN/ORG, TAN/ORG, GRY/ORG, WHT/BLK, etc.), connector numbers (C242, C243, C246, C257, C259, C236/C238), splices, and grounds (G200, G103, G104) are labeled. Useful for diagnosing no-headlight, no-fog-lamp, autolamp, and high-beam indicator problems.