P2100 Throttle Actuator Control Motor Circuit Open

If that test passes with a dvom check to make sure you have 12v to the throttle actuator power supply circuit red lead to the actuator power supply circuit black lead to a good ground. Obd ii code p2100 is defined as a throttle actuator a control motor circuit open the electronic throttle control system etcs controls the throttle valve opening. What does code p2100 mean.