
Don't really have to do anything, just plug it in. A simple test of the battery and charging system using both the digital display and the lighting system. The only slight downside is that it takes up too much space to keep it on all the time, not enough room for a cellphone.

Autel AP200H OBD2 Scanner Dongle - Wireless Bluetooth Code Reader with Health Status Reports - Diagnostic Tool for Engine, Transmission, ABS, SRS - OLS/BMS Resets - All Vehicles (Android/iOS)
11 Review

Autoscanner for car diagnostics Rokodil ScanX Pro, OBD2 scanner
29 Review

Vgate ICar Pro Bluetooth 3.0 OBD2 Code Reader | Scan Tool For Torque Android To Check Engine Light & Car Faults
19 Review

eTORK 3/8-Inch Drive "Click Style" Electronic Torque Wrench: Precise Torque Control (25-250 In. lbs., 2-20 ft.-lb.)
12 Review