Here is a tutorial on using MINI ELM327 OBD2 scan tool to clear check engine light for Hyundai Santa Fe.
Torque lite APP run on Android PAD (download from Android APP store)
Vehicle model: Hyundai Santa Fe
Step 1:Turn ignition on and Insert ELM327 MINI interface to vehicle OBDII port (the red indicator will light)
Step 2: connect Android pad with ELM327 code reader via Bluetooth
Power up Android PAD
Click on “Setting” -> choose “Bluetooth”
Then click “search for device”, the pad will find the available devices, choose “OBDII” to connect
Input required PIN:1234 (or 0000), If these two codes don’t work, read the manual for the Bluetooth adapter to find out what code the manufacturer used.
And click OK to pair with OBDII
Step 3: Clear fault codes
Open “Torque(Lite)” app
When it connected to ECU ok, click “setting” icon to go to function menu
Then choose “Fault Codes…” option
Choose “Show logged faults” and wait, it is requesting fault codes
It will show you the code on the screen,
You can click “web” to search for help or what does the code means on internet
Or you can just go back to choose “Clear logged faults”
Then read fault codes again, it will prompt you “No fault codes stored in ECU”
Done! These are all steps to clear check engine light, some customers also feedback that ELM327
scanner can also be used to diagnosis Hyundai Tucson 2011, Hyundai santa fe 2004 and so on.