Service your own car or diagnose intermittent issues that your service center can’t track down. This cable allows you to connect to the Model S or Model X service port and access maintenance features like firmware redeploy (used when swapping most parts), read and clear DTCs (diagnostic trouble codes), run Autopilot camera and radar calibration, read thermals stats on the drivetrain, charger, and A/C system (including drain and fill procedures), airbag configuration, and configuring body controls. This and much more is available using this cable in conjunction with the Tesla Toolbox app. In order to use this cable you will need an active account on service.teslamotors.com, you can then download Toolbox at toolbox.teslamotors.com (needs a Win7, 8, or 10 PC). The base rate for a subscription is $30/day up to $3000/year (not included with this cable).