1999 Oldsmobile Bravada headlights

I recently had the driver side front fender and bumper repaired. The hit damaged the wiring harness for the headlights and whatever else on that side. A new headlight was put in and all was put back together. The harness was spliced back together. The driver side headlight will not broadcast a beam. It lights like a nightlight and will not change with brights or regular beam. The daytime running lights work. The directional works. The fog works. What could be causing the lack of power to the light?
Thanks