LEMON Manuals: Even more car manuals for everyone
Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P2100: - Throttle Actuator Control (TAC) Motor Circuit/Open

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

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 .