I have a 1999 Miata, i bought the car for 750$ as a project car. it had some body damage but i figured i would fix it. The car is mostly done now, but i have one major issue. The low beams in my passenger side headlight does not work, but the high beam does. The drivers side is OK both low and high beams. also the orange blinker light in the passenger side light is straight on and it does blink when i activate them. In the drivers side in the other hand, its not on and it only works when i activate it.

  • how can i solve this issue?
    – user13377
    Nov 26, 2015 at 0:47
  • Are low beam and high beam bulbs separate? If there are two different bulbs, you may check low beam bulb and then the wiring.
    – coner
    Nov 26, 2015 at 7:49
  • @coner They are the same bulb; that's why i am really confused.
    – user13377
    Nov 27, 2015 at 16:20
  • maybe high beam coil of the bulb is problematic maybe? Can you test the bulb with battery or adapter?
    – coner
    Nov 27, 2015 at 20:08
  • @coner Turns out it was the bulb, i did not know they had two parts in them, I'm an idiot!
    – user13377
    Nov 27, 2015 at 21:58

1 Answer 1


The most likely causes of a problem like this are:

  • A failed bulb.
  • A poor or failed earth (this often results in the wrong lamp lighting up)
  • A broken wire in the harness.

Checking the bulb should always be your first task, as these are cheap and (usually) easy to replace. Tracking down poor earths or broken wires requires a bit of work, a multimeter and some spare lengths of wire can help to narrow down the culprit...

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .