1. Test OBD2 port before plug in scantool
It performs tests on all the 16 pins of OBD2 port for abnormality caused by shorting, reverse polarity, etc to avoid damage to your scan tool prior plugged in.
2. Monitor voltage during reflash programming
To monitor the OBD2 port power output in order to function properly during ECU programming, adaptation or flashing
3. Detect communication protocol
To detect which type of communication protocol the ECU is using, whether PWM (J1850), VPW (J1850), ISO 9141-2, DIS/ISO 14230-4 or Canbus (J-2284).
4. As Break Out Box
To provide easy access to any of the 16pins from the OBD2 DLC port for gathering of signal pulses when diagnosing with an oscilloscope, for data logging when used with a Y-cable, easy activation of blink codes, adjustment of idling rpm,etc
5. Check Alternator condition
To have a quick Alternator charging check during idling and high RPM conditions.
6. As data saver while replacing car battery
As Power Backup for ECU (for saving data) when connected to an external 12V battery while replacing the weak car battery.
7. As DC power source for other devices
As Power source for other DC loads up to 5 Amps DC output at pin 4 (Ground) and pin16 (+) socket.