What to do when low beam headlights come on?
If the low beams come on when bypassing the switch, replace the switch. To get at the screws/bolts holding the switch to the column, you might need to remove the lower dash and drop the column. The lower dash comes out if you remove all the screws (you have to take the ashtray out to get at one), open the glovebox and gently pull.
What does it mean when your headlights don’t work?
With that in mind, it can be tremendously useful to start off by looking at whether both, or just one, of your headlights have failed, and whether or not the high or low beam mode still works. When headlights stop working, it’s usually an electrical problem or an physical issue with the bulbs themselves.
How does a headlight switch turn on a high beam?
In the same way that your headlight switch activates a relay to provide power to the headlights, operating your high beam control will generally activate a relay to turn on the high beams. In the case of dual filament headlight capsules, this literally sends power to the high beam filament.
What to do if your low beams pop out?
If it “pops” out then you will have no low beams. Same for high beams. The two have two different fuses. It’s probably something as easy as changing the solid state relay in the fuse compartment in the engine. You can swap the fan relay with the headlight relay to see if your headlights come back on.
What to do when your low beam headlight blows out?
You can often tell when a headlight blows out while you’re driving, but confirm which bulb has actually blown out by leaving your headlights on and getting out of the vehicle to check. Then get back in your vehicle and turn on your high beams. Some vehicles use a single bulb for both high and low beams while others do not.
Why is my low beam headlight not working on my Dodge Ram?
After replacing the driver’s side headlight bulb twice on our 2006 Dodge Ram 2500 SLT 4WD Cummins Diesel pickup, the low beam still wasn’t working. I swapped the known good bulb from the other side and the low beam was still out, even though the high beam and fog lights were all functional.
What causes a low beam light to stop working?
If a headlight fuse blows, it could cause the headlights to stop working. Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights.
How many volts does a low beam headlight need?
If there are three or four wires, go to the next step. Switch your headlights to low beam and check the remaining wires with the multimeter. Again, one should read 12 volts.