I have an 89 Bonneville SSE and my DIC and compass displays rarely light up. I have swapped the compass and DIC displays and still no change. I think it could be the DIC module. I am having a hard time finding one, even at salvage yards. Can any please help me find one. Any advice about the DIC problems would be helpful too. I have replaced the compass module and no change. Wiring may be a problem but I don't know how to test that area. Thanks much!

So it lights up occasionally, or not at all? Did you change the module in the back, or the dash module in the cluster?