Method of preventing a windshield wiper from freezing to a windshield and related circuit

A method of preventing a windshield wiper from freezing to a windshield of a vehicle, comprising the steps of:

• driving the windshield wiper in a first direction;
• sensing current drawn by a motor for driving the windshield wiper;
• comparing an initial sensed current to a subsequent sensed current;
• and
• periodically reversing a direction the windshield wiper is driven until the subsequent sensed current is less than the initial sensed current.

A circuit for preventing a windshield wiper from freezing to a windshield of a vehicle comprising:

• at least one sensor for determining an ambient condition of the vehicle;
• a control module for receiving information from said at least one sensor and applying power from a battery via a control circuit to a motor for driving the windshield wiper in response to the information;
• and
• a sensor for sensing current drawn by said motor,
• wherein said control module compares an initial sensed current drawn by said motor when power is initially switched to said motor to a subsequent sensed current drawn by said motor a period after power is initially switched to said motor, and periodically reverses a polarity of the power from said battery via said control circuit to said motor reversing a direction of the motor for driving the windshield wiper until the subsequent sensed current is less than the initial sensed current.