Hi,
Either there is a problem in the headlamp control unit or a wiring problem for the driver’s headlamp operating circuit.
Here’s a link to the [https://cardiagn.com/electrical-system-2000-quest/|electrical wiring] section for a 2000 Nissan Quest.
On p.EL-32 there is a description of the low beam headlamp operating circuit.
On p.EL34-35 there are circuit diagrams for the headlamp circuits including the instrument panel high beam indicator light.
On the following pages are diagnostic tests for all the lamp circuits e.g. p.EL-42 ''headlamp control unit inspection table'' showing what voltage should be present on which terminal in the control unit under what circumstances
Hopefully the manual will help you to find the problem.