Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTION (EXCEPT DIESEL & HYBRID)DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONSDTC P2100: THROTTLE ACTUATOR CONTROL (TAC) MOTOR CIRCUIT/OPEN
2005 Ford Taurus SEL, 4D Sedan
DTC P2100: Throttle Actuator Control (TAC) Motor Circuit/Open
2005 Ford Taurus SEL, 4D SedanSECTION DTC P2100: Throttle Actuator Control (TAC) Motor Circuit/Open
P2100 - THROTTLE ACTUATOR CONTROL (TAC) MOTOR CIRCUIT/OPEN
| Description: | A powertrain control module (PCM) fault flag is set indicating the motor circuit is open. May require cycling the key. | ||
| Possible Causes: |
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| Diagnostic Aids: | A TAC motor circuit PID reading may indicate a fault, if available. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to DV: Throttle Body Assembly ETC STEP DV17. | ||
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.