95sev6

After many years of trouble free service my '95 pickup has developed some electrical problems. While coming home from work the other night, I noticed the wipers seemed a little slower than normal; which along with dim dash lights finally caused me to check the volt meter I installed years ago. Stuck on 11.5 volts. The idiot light hadnt' come on. I spent several hours checking the system today. Had the panel out and checked the light, no problem there, the bulb works if it gets power. Also, checked the circuit board on the back of the panel; had power to the correct circuits at the correct times. And checked the voltage to the alternator; everything seemed right and all the relays I could find. Problem is the charging system stays on 11.5-12 volts and the idiot light doesn't work, won't even come on when you just turn the key on. All the other warning lights work. I pulled the alt. (which was a rebuild about 5 years ago) and will get it tested tomorrow.

Any ideas regarding the "stupid" idiot light that won't work?

TIA!