The C503 is a multi-function diagnostic instrument designed for Vw models that will enable you to read and clear all of Classes' diagnostic faults in the Vw. Such as 01-Engine control module, 02-Transmission control module, 15-Airbag, 17-Dash board, 08-Air conditioning. We also have OBDII features that allow you to scan all engine readings and associated fault codes on any later vehicle manufacturer/model.This product supplies color LCD display and personalized function menu.