The diagnostic code is for the Out Put Speed Sensor Which for somereason has many names GM calls it an
F-Sensor on their parts website AC delco calls it a vehicle speed sensor-automatic transmission- other parts dealers callit an auto trans input speed sensor. What I can gather is that it is on the transmission somewhere and sends out speed information to the cruise control, Trans control systems, and the speedometer. Ive seen a range of prices from $121 to $350 Right now I just want to pull it and see it so I can match it to pictures on the net. So please, on a 2009 4dr sedan LS where is this stupid thing I would love a diagram or picture or even written instruction on how to locate it. Thank you Thank You Thank You