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If low beam works but high beam doesn't then: It is unlikely that both headlights burnt out the high beam filaments at the same time. I'd check each headlight beam with another headlight beam you know is working on both high and low beam filaments. If this works the higb beam, then the beams are no good. Another check, to make sure that both filaments in each headlight are working, is done by connecting 12 volts of power across the three terminals at back of the beam (negative to ground terminal and positive to first the lowbeam terminal and then the highbeam terminal). If both filaments light, headlight beam(s) are good. Brightest light is highbeam. If in doubt as to which terminal is which, look at the connector, the white wire is Highbeam, the yellow wire is lowbeam, the third wire is ground. So, now you know the headlight beam are good, but if problem is still not fixed, check the fuse for high beam. See your owners manual for location, or just check all the fuses. If the high beam fuse is OK, check the dimmer switch. If looking at the dimmer switch, the middle wire (56 termainal) is white with black stripes, this is the power in to the dimmer switch from the headlight switch (dash). The left wire (56b terminal) is yellow and it is the low beam power from dimmer switch to fusebox, the right wire (56a terminal) is white and it is the High beam power to fusebox. If the low beam works as you say, a quck check of the system and the dimmer switch, is to exchange the yellow (low beam) wire and the white wire (high beam). If the high beam nowworks but the low beam doesn't, and the fuses are all good, then the dimmer switch is faulty. If the fuses are not OK, check all the wiring first. Check to make sure all the wires are connected from headlight switch to dimmer switch to fusebox to each headlight. Look for shorts (burnt wires) in the curcuits, since if the fuse(s) burnt out, it did so for a reason. Repair first any burnt wires. Replace the fuse with the same sized fuse. This should fix your problem.
What else can I help you with?
What is a low beam?
Well, assuming that you are talking about headlights, the low beams are the dimmest settings for the drive headlights, while high beams are the brightest setting.
How can the low beam headlights work but no high beams on headlights don't work?
The switch is broken. You need to replace it.
Low beam headlights do not come on?
are my low beams supposed be come on also when my high beams are on in my 1994 gmc sierra
What do you do if an oncoming vehicle has its high beam headlights on?
Flash your high beams once or twice quickly
Why dont your high beams turn on but your low beams both work on your 2000 ford expedition Is there a fuse for it?
It sounds like the low beam/high beam switch is bad. Fuses are not the problem since they are built into the headlight switch and would cause headlights to blink or not come on for both high and low beam headlights.
What are high beams on the car?
High beams are the "bright" setting of your headlights. The reason they are sometimes referred to as "high beams" is because when they are on high beam or bright setting, the lights are directed straight out, instead of a bit more downwards as they are on "low beam" or "dim".
When driving in fog you can see better by?
Using low beam headlights and front facing fog lights.
Can a blown fuse effect just your high beams?
A blown fuse can affect just your high beam headlights. The high beam and low beam headlights are on separate fuses. The separate fuses ensure that you will not lose all of your license at the same time.
Your low beam headlights work but not high beam for 1992 camaro rs?
the high beams work off of a different fuse , both low beams are on the same fuse. fuse panel under dash on drivers side
Are single beams legal?
They have to be double filamented with both a high and low beam if they are going to be used as replacement for factory headlights
Why does 240sx high beams work on both headlights but not low beams?
the bulbs in your car have two filaments, high beam and low beam. as you generally use mainly low beam the filament wears out a lot quicker than high beam. so replace your bulbs, as it couldn't be anything else.
Why both headlights work on low beam but not on high beam.?
you will need to get the wiring diagram and follow the schematics,but I believe the high beams generate their power from the mult-function switch
