W124 check engine light/pulling codes
Hello. Tonight the check engine light came on on my 1993 300E. I searched around a bit in the ShopForum, and think I figured out how to pull the codes. I fired up the engine, pushed the button, and the LED flashed once. No fault.
Am I pulling the code the proper way? And if so, what else should I do to figure out what's causing the light to come on?