How can we help you if you can't tell us what the symptom is?

You say all is well with lights off. Ok, got that.

NOW:
You turn light on and what happens:

--- The brake lights come on and stay on. (ICM I would think.)
--- The brake lights come on when I step on the brakes, but then won't go back off. (This would make me think there is some odd screw-up that is "latching" the brake light relay, looking at the wiring diagrams [which are incomplete and not totally accurate] the only thing I can come up with is the Antilock Controller module - but I just don't see how.....)

The CLPSSM is wired to the tail lights thru diodes, don't see how that could be it...