Yesterday I noticed that one of my HID lights that I installed about 3 years ago was going dim, so I replaced both of them. It worked and both of them are bright now. But when I hooked the battery back up and went to get in the truck the check engine light was on, the ABS light was on, the E brake light was on even when I took the E brake off, and the Speedometer doesn't work now. I tried to let the truck run for 30 minutes thinking the computer had to restart, but everything stayed the same. Anyone ever have this happen to them? I have unhooked the battery before without problem. Any help would be greatly appreciated.