Toyota Repair: check engine light on 95 tacoma?, service reminder, toyota dealer

Question
I just bought a 95 tacoma 2.7L with 114,000 miles. On the way home from the place i bought it from the check engine light came on. I called the guy and he said it had been on for a year or so. Where should i take it to have it diagnosed that won't cost me an arm and a leg. Does the light automatically come on when a service maintenance is due? The truck seems to be running fine.
thanks  

Answer
The check engine light is not a service reminder light, it indicates that the on board computer has detected a problem, the best place to take it is to a Toyota dealer and have them get the trouble code from the computer and make a recommendation on what course of action to take, let me know if you need more help.