Dorman 977-002 Idle Relearn Tool

On certain General Motors vehicles, the idle relearn process that's needed after replacing or cleaning an electronic throttle body requires an expensive scan tool or many time-consuming drive cycles. This handy and affordable Dorman OE FIX GM idle relearn tool eliminates the time those drive cycles take, and the high cost of a suitable scan tool. This dongle connects to the OBD-II port on specified GM vehicles. This tool helps the vehicle learn the parameters of a new or used throttle body, eliminating the post-installation drive-ability concerns that occur until the ECU learns the new throttle position. This innovative time-saver belongs in every technician's toolbox and is inexpensive enough to pay for itself with just one use by any DIYer.