Figure 2.1.5 Main Menu & Home Screen Icons Once the AL500B is connected to the power source (through OBD-II Diagnostic Cable or Battery Test Cable), the 2.8" color LCD screen will light up and display the main menu (See Figure 2.2.1). To help you understand each icon, please read the following content carefully. Figure 2.2.1 The OBD-II/EOBD (See Figure 2.2.2) function allows you to access "generic" OBD-II data, including DTCs, freeze frame, datastream, etc. For detailed info, please go to Section 3