2014 W900 Headlights only work on driver side. High beams only work on passsenger side. headlight on driver side red wire 12V passenger side black wire 6V.High beam passenger black wire 12V none on DS

SOURCE: high beam headlight does not work properly

it more then likey a lose wire or bear one. run the line down. i think that the high beams run on diff. fuses. you can try that!

SOURCE: when low beam headlight is on passenger sign is

Try this to eliminate new bulbs for both sides:
With a partner behind the wheel:
PULL out the bulbs one at a time. Keep them plugged in. While you are holding the bulb - have your partner click and HOLD the High Beam Selection. This causes the Low Beam and High Beam filaments to both go on and stay on.
Check both sides this way.
While the bulbs are out, look at the filaments that did not illuminate. Are they broken, bent, or have indications they are burnt out?
You can also change to bulbs (left to right, right to left) and recheck using the above method of holding the high beam selector and checking the filaments.

Johnny Brown

• 5763 Answers
• Posted on Feb 19, 2010

SOURCE: passenger headlights only do not operate.

check the bulbs first and also the fuses theres a fuse for each side and for low and high beams, start there, good luck.

SOURCE: low beam headlights keep burning out, 8 times on

If you visit many forums for Elantras, you will see that frequent headlamp failure is very common. It has been discussed over and over again and it is thought that always turning the lights off and on via the stalk switch is recommended. If you leave the light switch in the on position, when you start your car, the lights briefly flash on then off again as you turn your ignition to the start position and then turn on again as you release the key to return to the "on" position. This may be causing a power surge which creates stress on the bulb filament and can only be avoided by using the light switch instead of the ignition to power up the headlamps.

SOURCE: 1998 Lincoln Town Car passenger side headlight low beam only.

Hi Steven, I guess you have checked the fuses? Some time (and I'n not saying this is your problem) the fuses are wired in such a way that if one blows (and the fuse is on the earth side of the circuit) there will be an output, but the circuit will either use the earth through the the other bulb or fail to earth. I would also suggest having a look at the relays and their operation. Lastly, check the earth connections again. Regards John