Just to clarify, with dome light switch in 12 sec position are footwell AND dome lights doing the same thing? if they are doing different things your timer module may be faulty.
The fact that you seem to be suggesting lights come on sometimes would indicate fuses are OK. They are located under dash on driver's side. Fuse panel flips down when you release a button/lever on left side. Timer module is plug-in device visible on bottom of fuse panel (before flipping down).
Are your key-in and headlights-on chimes working?

Remote start? Have you got an after market system installed?


98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both