This never got answered but I figured I'd help out anyway since I encountered a similar problem the other day.
It's most likely related to the wiring behind your AC panel. There are a few plugs back there that can wiggle loose and cause what's happening. I'd suggest turning the car off, reseating all the connections then trying again. Be careful not to jar the wires loose again when you are re positioning the AC panel.
1992 JDM (RHD) Black FD3S Type S.
Apex'i intakes, Blitz NuR Spec catback 3" exhaust, Panasport 17" C5CR wheels, Knight Sports sideskirts, Veilside shogun spoiler, RE Amemiya bumper, ECU tune by RE-Amemiya.