Your battery might not be putting out enough power to ignite the ballast.
Have you tried switching the bulbs from side to side? If you do and the same thing happens on the same side, then you know it is not the bulb. Then switch the ballasts. If the problem happens on the other side, it probably is the ballast. If its not the ballast, then it is probably your battery.
Which side usually does not turn on? Driver side or passenger? I'm going to guess passenger - just a guess. ;)
Bookmarks