List Of 2017 Harley Davidson Check Engine Light Reset References. To turn off the codes with your scanner, follow. Turn the ignition switch, which is located in the center of your gas tank, to the off position and then turn the run/stop switch, which is located on the right side of your handlebar, to the run position.

Web this light could signify any number of problems, including your gas cap being loose or broken, your spark plugs or wires being bad, or your oxygen (o2) sensor needing to be replaced. Keep pressed until diag appears. Tap the tripp button to move through the menus.