DTC P2100: - Throttle Actuator Control (TAC) Motor Circuit/Open

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2009 Mercury Mountaineer, 2009 Mercury Milan, 2009 Mercury Mariner, 2009 Mercury Grand Marquis, and 2009 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2100: - THROTTLE ACTUATOR CONTROL (TAC) MOTOR CIRCUIT/OPEN

Description:	A powertrain control module (PCM) fault flag is set indicating the motor circuit is open and may require cycling the ignition.
Possible Causes:	TAC motor has an open winding TAC motor is damaged TAC motor harness is open TAC motor harness is short to PWR TAC motor harness circuits are short together TAC motor harness connector is unplugged
Diagnostic Aids:	A TAC motor circuit PID reading may indicate a concern, if available.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test DV .