Double-lead stepping motor

This means that it is not a stepping motor.

It should be a DC car. Connect the two wires together and turn the motor to see if there is resistance. Connecting two wires together is not the same as loosening the rotation resistance. )

If the resistance of left and right rotation is the same, you can use 12V power supply to try to see if it can rotate (if the resistance of forward and reverse rotation is different, it may be that there is a voltage stabilizing circuit in the motor that needs to be divided into positive and negative poles), and the DC motor can rotate.