C0040: Brake Pedal Switch "A" (Subfault) Is your scanner showing C0040? No worries. We'll show you what it means and how to deal with it. Presented by Randy Worner Listen to this article Check Infographic Watch Video Download PDF 00:00/00:00 1X 2X 3X Tagged : Acura Cadillac Chevrolet Ford GMC Honda Chrysler Dodge FIAT + Show more - Show less You know someone would like this