the left side would not work fuses are good relays are good could not get the passenger side fog to turn on? turns out the small socket type plug with two solid leads inside had pulled its way out, it was also kinda corroded as well. I thought it was possibly the off brand bulbs I bought giving me trouble but they actually look really good. I bought the hyper white 12v 100w they have a very slight blue tint and were $5.85 shipped!