Not sure if this applies to you but i had the same problem. When i purchased my hid kit (lows AND highs) i installed it myself. My high beam light on the dash was half showing up and i couldnt change from lows to highs and back. Turns out after lots of research 9007 hids (our lights) are the same kit used with 9004 kits because the harness was the same. The only thing that needs to be changed is on pin on the connector needs to be swapped with another. Its usually the center pin on the hid main harness that needs to be swapped with either the left or right pin. I found the right way to do mine by getting 3 loose pieces of wire and just sticking it in each harness changes the connections. Once if found the right set up i just pushed the pins out (easier said than done) swapped their positions and hooked it back up. Good to go
