You need to insert the adapter into the diagnostic socket (also known as the OBD2 connector) and turn on the ignition or start the engine. How do I connect my iPhone to OBD2 Bluetooth? Step 3: Place the key in the ignition and turn it forward to “ON” position. Step 2: Connect ELM327 USB to your computer and car’s OBD port (usually underneat dashboard/steering wheel).
Step 1: Install your OBD2 software (if you don’t have it - checkout TOAD OBD software).
Right click on Bluetooth icon in task manager > Add a Device.
It “transforms” your Android smartphone or tablet together with an ELM327 diagnostic interface to a vehicle diagnostic device. ScanMaster Lite is an application for vehicle diagnostics to OBD-2/EOBD standards.