Relearn SensorRelearn is used to write the newly programmed sensor IDs into the vehicle’s ECU for sensor recognition.Wide Application Using with THINKTOOL Series Before using THINKCAR T-Wand 200, you’ll need to blind with THINKCAR THINKTOOL Series Using with THINKDIAG/THINKDIAG 2 Download THINKDIAG app in Google Play Store/ Apple Store.