Hi, and thx for the help.
When i mentioned power on both sides of one of the dashlight bulb pigtails, same on both cars, except on the car I'm trying to fix, the one side doesn't lose power as you turn up the dashlights as it does on the car that works...
I meant with the bulb out, there's power (12V) to both sides of the "bulb", there's power to both sides of the pigtail, so nothing to do with a filament transfering power. One would be hard pressed to check for power with a bulb in, especially with the ultra dinky "Green" bulbs behind the heater controls...
Not to sound too smart, and I'm always relearning something (early Alzheimers?), but I'm pretty well versed in electrical repair, Ohm's Law, etc...
I graduated from an Automotive Technology program in 1990 (back when they actually taught starter and alternator rebuilding), followed up by another degree in Diesel/Heavy Equipment Repair. I worked in the field as a technician, for nearly 15 years before leaving the city for good and moving out to the country, where I work on a farm, and troubleshoot/diagnose electrical stuff all the time. I actually consider myself to be way above average when it comes to understanding (the first and most important step in repairing) electrical problems.
When I went to school back in '88, the instructors told us "If you're flush, get a Fluke meter", they were made in Everett WA back then, not China... I still have that original Fluke 23. In fact I like the so much I have three of them, as well as an extensive set of electrical troubleshooting tools, 2 Snap On test lights, lots of leads, Weller Butane powered soldering gun. I solder/heatshrink all my connections/repairs, if I can humanly help it.
So anyway, back to the car, I am leaning towards the module now, even though I don't like to get parts unless I'm 100% sure that it needs it. I can probably get it from a junk yard, and hope that it's not defective.
In the meantime I'll get back to the car today, after we do the snow tires on the wife's car, and other stuff.
Here's a post from last fall on the net where someone's Legacy was suffering from what I guess was the very same problem, the answers given weren't too bright...
http://rspauto.com/answers/the-dash-lights-on-my-1993-subaru-legacy-dont-work-and-i-cant-figure-out-why-what-can-be-the-causes/#comment-135564