I have a 2004 Lexus ES 330, my daytime running headlights currently do not come on. The automatic lights still work in the fact that the night lights will engage when the sensor detects the appropriate level of darkness. I took the car in and they wanted $400 just to hook the system up to find the error. Is there a fuse or something I can try and replace or how can I do the repair myself? $400 seems a little high to me to just diagnose the issue without it being fixed.