My 2004 Deville DHS interior lights will not turn off. They stay on even when driving. They time out after 20 minutes or so. I had my back-up lights and trunk wiring repaired at a Cadillac dealership and now the interior lights stay on. None of the interior lighting controls are helpful in solving the problem.

The driver's side door panel was removed and re-installed to replace door-lock linkage.

I will return to the dealership next week however I would like to at least get the lights out until then. Oh by the way, I don't know which fuse to pull without effecting other systems.

 

I went back to the dealership just to find out that I have a bad rear computer module! The replacement cost is $400+ not including labor!

I removed a relay for now however I do not have interior lights now. Anyone know anything about the rear computer module?