You might have a bad ground in the engine bay that is causing backgrounding in the dash. I have seen it happen before. It can cause turn signals to stay on dimly, gauges malfunction, etc.
I am attaching ground point diagrams for you to check. Make sure they have tight metal to metal corrosion free fit.
Images (Click to enlarge)
Saturday, June 2nd, 2012 AT 7:18 AM