I think he's doing what he's supposed to do. I tested half a dozen relays and they all turned out to be good. The green light flashed 10 times then turned on 11 times on the 5 pin relay. It would be nice to know if each flash means it's testing a different function, or if it's just flashing to entertain you while it does its thing. I assume it's just a pass/fail tester. A relay puller is a handy item to easily pull out tightly packed relays and miniature fuses.
Vgate ICar Pro Bluetooth 3.0 OBD2 Code Reader OBDII Scanner Scan Tool Car Fault Diagnostic Check Engine Light For Torque Android
22 Review
Upgrade Your Car Diagnostics With 16 Pin OBD2 Extension Cable Splitter - Male To Dual Female Y Cable - 50CM
17 Review
Precision Bike Torque Wrench Set for Mountain & Road Bikes - Pro Bike Tool 1/4-Inch Drive with Allen & Torx Sockets, Extension Bar, Dual Readout, and Storage Box
11 Review
Autoscanner for car diagnostics Rokodil ScanX Pro, OBD2 scanner
29 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review
Tool set Ombra OMT82S12, 82 pcs, brown
22 Review
Xiaomi Mi x Mijia Wiha Precision Screwdriver Set (DZN4000CN), 25 pcs
34 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review