My 2004 Honda Civic instrument cluster lights don't work when I turn my headlights on. With the key in the ignition and the car started, the cluster lights work fine. When I turn my headlights on from there, the instrument cluster lights turn off. One of my friends said to change the whole instrument cluster. Any suggestions?
Actually you can just change the bulbs in the cluster. The bulbs are in little holders which twist-lock into the back of the cluster. They are quite easy to change.
To get to these, you'll need to remove the fascia in front of the cluster, then there are three screws holding the cluster in (two along the bottom, one top center). Then there will be two wiring harness connectors (one green, one blue) along the top you'll need to release. After that, the cluster should come right out. You'll see two twist-lock colors located in the back. The black twist-locks are for the idiots lights, while the white ones are for illumination.
The type of light you'll need is a T5 dash light and are relatively inexpensive. Since you are doing it anyway, now may be a good time to move these bulbs to an LED style, or if you really get funky, you could also change the color of the bulbs as well. There are lots of options.
For a decent rundown on this procedure, check out this YouTube video.