I have one headlight that switches fine but my driver side head light has both bulbs on all the time, but very dim. What is the problem?
have the same problem?
Thursday, July 7th, 2011 AT 6:20 AM
That sounds typical of a bad ground but GM uses a complicated daytime running lamp system so without a diagram to look at, I can suggest what works on normal cars and trucks. With the head lights turned on normally, not just the daytime running lights, unplug the right head lights. If the left ones go out completely, there is a loose or corroded ground wire on the left side.