Old-time trick to see if wiper motor is toast~~~~
First, ya have to pull the cover cowl, plastic screws, 3/4 turn to release, should expose motor. I f ya can see the harness, unplug it. take two wires, one each off of each battery terminal, and quickly jump the motor terminals, cross the wires to the terminals once or twice, to see if the motor runs. If the otor doesn't activate, motor is toast.
WARN!!!!!! This method will likely start the motor, if it good, into full hi-speed wiper mode, so stay away from the wipers or motor as best ya can.
Do NOT hold the jumpers on motor any longer that to try to trigger the motor.