The LAMP DSC 40 is a BMW diagnostic tool designed to diagnose and troubleshoot the ABS/DSC system. It can be used to diagnose problems with the ABS/DSC module, such as brake lights that light up when the pedal is pressed, or a permanently lit DSC light. It is also useful for checking the underhood and underdash connectors, as well as resetting the steering angle sensor. The tool was developed for models produced between 2000-04-07 and later US cars, and it can be used to easily diagnose any problems related to the ABS/DSC system. [1], [2], [3]