I grabbed two (matching part#'* to the one off my car) used units from junkyard vehicles while I was there getting the grill stuff.
I tried both units and the illumination still does nothing. A new unit is $70 here.
I think its time for a schematic, Haynes sucks in the lack of details on the digital dash setups. Time to look into a FSM I think.
Also, I just remembered, when I took the dash apart to work on the hvac controllers, theres something like a lighting controller module under there. I'm not sure if I got the name right (doubt it) but its along those lines, if that helps any.
98 SSEi 111,222 miles.
Intense PCM, LS6 Valve springs, PEMS, FWI. Hawk Street Pads.