High beams OK. Low beams used to go on and off only when I used my turn signals. Now low beams are off most of the time. They only come on on rare occasions.Should I replace bulbs or switch? Or maybe its something else?
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Re: Low beams only work sometimes
Remove the plastic trim from around steering column so you can access the wires to the multi-function switch(turn signal switch).The RD/YE wire is the feed from the headlamp switch for low beams,it then leaves the multi-function switch on the RD/BK wire and feeds fuses no. 10 and 4 in the under dash fuse panel and from there to the headlamps right side is the DB/LG and left side is the WH/LG. Get you a 12V test light and make sure you have voltage in these places. I suspect that the multi-function switch itself has gone bad since you stated that they would work at times when you activated the turn signals.
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Hello, is sounds like your issues are coming from within your turn signal/high-low beam switch. Most of the time the wires get worn or break and start rubbing around on each other causing troubles within the electrical circuit. Other times the contact switches inside the turn signal/high beam switch/lever wear and loose contact over time. You may be able to see wires leading from switch into steering colum. Check for bad wires, if none you may have to replace switch which you can get from any junkyard for bout 5 bucks plus learn how to take it apart in a junk car no one is worried about getting destroyed. BE CAREFULL WITH AIRBAGS when you pull your steering wheel to fix switch. It is not a difficult job to do.
It sounds like you are confused about how your headlamp system is supposed to work. The DRL does not run on the High beam circuit, it runs on the low beam circuit. The fog lamps are supposed operate with the park lamps and also with the low beams, not the high beams. From your description, I would say that your system is operating as designed and you are having trouble telling High from Low. (Don't feel bad, that is why high beam indicators were invented in the first place.)
its probally the bulb........alot of car headlights are DUAL element meaning one bulb has 2 little elements inside one for low beam one for high beam...............Most times the low beam burns out because its used more.....get it one bulb gives both high and low beams.......REPLACE bulb......if you don't know what kind go to auto part store, tell them the make of your car and they will give you the right one .....
No as a rule they don't fail at the same time, in fact it is unusual for the hi beam to fail ever, the problem is most likely in the turn signal/multifunction switch, this does cause your problem, have seen it many times.
the head lights have tree wires goig to it one groun one gets power when high beams on the 3rd gets power only with low beam on test the wires or try by plugin a good known head light to conector if it works with low beam then replace both head ligts because head light come with two bulbs in one high and low