You should set the inquiry password, which is used for cash withdrawal, customer service call and password verification. If the password checking function of swiping the card is not enabled, you don't need to enter the password when swiping the card, just press the OK button of the POS machine. But I seem to remember that the transaction password is also set, and you have to enter the password when swiping the card. You can go to the supermarket or other places to swipe your card without entering a password and see if you can swipe it out. If you can, it means you don't have to enter a password when swiping your card.