The headlight doors on my '03 Z06 don't close when switched off if dimmer is LOW. pushing stalk to HIGH causes the doors to close. The voltage on the LOW beam fuses drops from ~11V to ~6V when switch is turned off. Drops to 0V when HIGH beam is selected. HIGH beam fuses are grounded when the switch is off, the LOW beams are NOT. Door open/Lights on Warning Chime active. Also disconcerting noise (drawing 6V??) from below right headlight during fault.