Hi, welcome to Just Answer. My name is***** the only way to turn off the check engine light is with a scan tool. You will need to purchase an inexpensive scan tool at the parts store that can erase fault codes you can erase the code yourself. Make sure that you purchase a tool that can read and erase codes. Many of the real inexpensive tools can only read the codes but they cannot erase them. Keep in mind that the light will keep coming back on until the fault is repaired.
Let me know if you need anything else.