If your Volkswagen Jetta headlights are not working, it could be due to a number of reasons. Here are a few common causes and solutions
Burnt-out bulbs The most common cause of headlights not working is a burnt-out bulb. To check if this is the case, simply remove the bulb from the housing and inspect it for damage. If the filament is broken, you will need to replace the bulb.
Fuse Another common cause of headlights not working is a blown fuse. To check if this is the case, consult your owner’s manual for the fuse location and check the fuse with a multimeter. If the fuse is blown, you will need to replace it.
Wiring If the bulbs and fuses are good, the problem could be with the wiring. To check the wiring, you will need to use a multimeter to trace the wires from the headlight switch to the headlights. If there is a break in the wiring, you will need to repair or replace the wiring.