P2100 MERCURY - Throttle Actuator Control Motor Circuit Open
P2100 MERCURY Possible Causes
- Faulty Throttle Actuator Control Motor
- Throttle Actuator Control Motor harness is open
- Throttle Actuator Control Motor circuit poor electrical connection
First diagnose P2100 MERCURY code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
Cost of diagnosing the P2100 MERCURY code
Labor: 1.0The cost of diagnosing the P2100 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the P2100 MERCURY code detected?A powertrain control module (PCM) fault flag is set indicating the motor circuit is open, and may require cycling the key.
P2100 MERCURY Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P2100 Mercury DescriptionThe electronic Throttle Actuator Control (TAC) is a DC motor controlled by the Powertrain Control Module (PCM). There are 2 designs for the TAC, parallel and inline. The parallel design has the motor under the bore parallel to the plate shaft. The motor housing is integrated into the main housing. The inline design has a separate motor housing. An internal spring is used in both designs to return the throttle plate to a default position. The default position is typically a throttle angle of 7 to 8 degrees from the hard stop angle. The closed throttle plate hard stop prevents the throttle from binding in the bore. This hard stop setting is not adjustable and is set to result in less airflow than the minimum engine airflow required at idle.
P2100 MERCURY More InformationNeed more information on how to fix the P2100 MERCURY code?
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