I have a 2006 short wheel-base Trailblazer, and it has a crazy problem.
My son noticed while walking through the garage, when it was dark, that the center dome light was dimly lit. I did a quick check by pressing both center dome lenses to activate the "reading" setting of the switches and the bulbs went from dim to normal brightness. I pressed the lenses again and both the bulbs went back to dim. Then, I closed the door and the front dome light and tailgate dome light went out, like normal. But the center dome pair will stay on, but still at a lesser brightness. I am not sure why this is happening. I did a quick review of the wiring diagram, that is found on this site, and found that the lights are connected to the same wire harness, so nothing jumped out to me as to why this is happening.
About a year ago I replaced the dome bulbs with LED equivalents, yet have never had a problem until now.
Any ideas?
Update:
I was reviewing the lights again and the center dome lights were still acting crazy. I then went to the front seat and closed the door. The front dome lights went out, all normal. Then I pushed the lenses and both lights were dim. To just try something I pulled the fuses and re-installed them, one by one. I found that fuse #40 controls the power to the lens switch "reading" action on both the front and center dome lights. When I re-installed the fuse the lights came on normal and bright. I clicked the lenses to courtesy operation, closed the door, all the lights went out, opened the door, and all the lights came on bright and normal.
My only thought was this; could a body control module be controlling this and the module is maybe going bad?
My son noticed while walking through the garage, when it was dark, that the center dome light was dimly lit. I did a quick check by pressing both center dome lenses to activate the "reading" setting of the switches and the bulbs went from dim to normal brightness. I pressed the lenses again and both the bulbs went back to dim. Then, I closed the door and the front dome light and tailgate dome light went out, like normal. But the center dome pair will stay on, but still at a lesser brightness. I am not sure why this is happening. I did a quick review of the wiring diagram, that is found on this site, and found that the lights are connected to the same wire harness, so nothing jumped out to me as to why this is happening.
About a year ago I replaced the dome bulbs with LED equivalents, yet have never had a problem until now.
Any ideas?
Update:
I was reviewing the lights again and the center dome lights were still acting crazy. I then went to the front seat and closed the door. The front dome lights went out, all normal. Then I pushed the lenses and both lights were dim. To just try something I pulled the fuses and re-installed them, one by one. I found that fuse #40 controls the power to the lens switch "reading" action on both the front and center dome lights. When I re-installed the fuse the lights came on normal and bright. I clicked the lenses to courtesy operation, closed the door, all the lights went out, opened the door, and all the lights came on bright and normal.
My only thought was this; could a body control module be controlling this and the module is maybe going bad?
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