I am wondering if someone can tell me what the PC circuit board is for that is located on the right hand side of a John Deere 425 AWS below the instrument panel. It has two 15 amp fuses and two LED indicators of which the left one is Red and the right side one is Green. Is its function have to do with the ignition coils, as I have developed a engine misfire under heavy mowing condition. Thank you for your help.