Help with Neon 2000

How good good morning, I have a 2000 Neon and the situation is that the focus of Check Engine turns on, it takes it to 3 mechanics and in no scanner threw code, the car works well only the check Engine is turned on, that 1 week ago, but now also turns on the red focus of the right side board as at the minute of starting the car. Chew in the manual and says it is the focus of the alarm, but the car opens and closes well, and does not go out or anything similar. What can be ??? Thank you...

Your board is generating a short or closing a circuit ... Review it before you damage your ecm ... greetings

Hello, thank you for your answer, he hears my ignorance, can I check it myself or do it have to be an electric? How do I check it if you have one of the 2 failures that you mention? I say even if I don't get to the workshop without knowing anything and want to give me a cat for hare.

Thank you...

Hello, it smells like a susting cut if you know of electricity and you have basically a tester or multimeter do it your osino you will break something and you are normally worse the boards have turnoles and plastic brooches if you do not know where to screw or press it you will break it carefully and if you do not force the pieces since the board and the terminals over time are put fragile
greetings ...