I have the same problem only lights will go on and stay on for hours at a time. Pulled the fuse, and drove without signal lights. At times, the red alarm light on top of dash says light constantly. Battery constantly runs down and vehicle won't start.

Engine and turbo are still fine but lots of other little problems are driving me nuts.

Thanks to you guys and I will check the relay. I have had a mechanic look at it and he couldn't figure it out.