What must you check when one of the vehicle's headlight bulbs does not light up?
Pick an answer to test yourself
The correct answer: The proper functioning of the bulb and the proper functioning of the fuse connected to it.
When one headlight bulb does not light up, check that the bulb works properly and that the fuse connected to it works properly. These are the likely causes of a single lamp failing. The battery voltage, the light switch and the lens are not the first things to check.
