Why would both headlights burn out at the same time?
When both headlights stop working at the same time, the bulbs usually aren’t at fault. The main exception is when one headlight burns out first, goes unnoticed for some time, and then the other bulb also fails. If this is the case, then replacing the bulbs should fix your problem.
Why is my headlight connector burnt?
Most of the time, the issue is caused by the OE wire gauge, which is too small (typically 20 gauge) to handle the current drawn by the headlight bulbs. In other cases, the issue is the result of loose terminal connections, which can cause resistance in the circuit and lead to overheating.
Should I replace both headlights if one goes out?
For this reason, our mechanics recommend installing both lights when one goes out. Factory-installed headlamps should last about the same length of time. If one bulb burns out, it safe to assume that the other lamp is not far behind. Headlights are like used tires.
Why do high beam headlights work but low beams don’t?
Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.
Can a high beam light bulb be blown out on the same side?
If the high beam on the same side is also out, it may be one bulb. You do not need to purchase specific bulbs for each side, but identifying which is the blown out bulb will help you to replace it without having to start the vehicle again.
What to do if your low beams don’t work?
Either way, if your low beams aren’t working but your high beams are, the first things we check are the bulbs. If you’re thinking of replacing the headlight bulbs yourself, make sure you’re familiar with the correct installation procedure for the type of bulb you’re replacing.
Why are my headlights not working at 12 volts?
So, if you have 12 volts at all the headlights, but either Hi beams or Lo beams are not working, you most likely have a bad Hi/Lo switch that is not completing the path to ground properly for either the HI beams, the LO beams, or both (see exception below before you tear into your steering column).