AutoCodes – Ford – P2100 1999 Ford F150

P2100 1999 Ford F150 Code - Throttle Actuator Control Motor Circuit Open

Quick Answer

The electronic Throttle Actuator Control (TAC) is a DC motor controlled by the Powertrain Control Module (PCM). Common causes include Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open, Throttle Actuator Control Motor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2100 1999 Ford F150 indicates Throttle Actuator Control Motor Circuit Open.
Common causes: Common causes include Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open, Throttle Actuator Control Motor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,352

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2100 1999 Ford F150 Description

The 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.

OBDII Code P2100 1999 Ford F150 - Throttle Actuator Control Motor Circuit Open - AutoCodes.com — P2100 1999 Ford F150 Code - Throttle Actuator Control Motor Circuit Open

What does this mean?

What are the Possible Causes of the DTC P2100 1999 Ford F150?

Faulty Throttle Actuator Control Motor
Throttle Actuator Control Motor harness is open
Throttle Actuator Control Motor circuit poor electrical connection

How to Fix the DTC P2100 1999 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2100 1999 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2100 1999 Ford F150 Code

1. What does OBDII code P2100 mean for a 1999 Ford F150?

The P2100 code indicates a problem with the Throttle Actuator Control Motor Circuit being open, affecting the vehicle's throttle control system.

2. What are common symptoms of OBDII code P2100 in a 1999 Ford F150?

Common symptoms include reduced engine power, acceleration issues, and the vehicle going into limp mode with the Check Engine light illuminated.

3. What are possible causes of OBDII code P2100 in a 1999 Ford F150?

Potential causes of P2100 include a faulty throttle actuator control motor, damaged wiring or connectors in the circuit, or a malfunctioning throttle position sensor.

4. How can I diagnose the Throttle Actuator Control Motor Circuit Open issue in my 1999 Ford F150?

Diagnosing the problem involves checking the throttle actuator motor, inspecting the wiring and connectors for damage, and testing the throttle position sensor for proper operation.

5. Can I still drive my 1999 Ford F150 with OBDII code P2100?

It is not recommended to continue driving with the P2100 code present, as it can lead to further damage and unsafe driving conditions. It's best to address the issue promptly.

6. How can I repair OBDII code P2100 in my 1999 Ford F150?

Repairing P2100 may involve replacing the throttle actuator control motor, repairing damaged wiring, or replacing the throttle position sensor, depending on the exact cause of the issue.

7. Will resetting the OBDII code P2100 in my 1999 Ford F150 make it go away permanently?

Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue causing P2100 is not addressed, the code is likely to reappear after driving the vehicle.

8. How much does it cost to fix OBDII code P2100 in a 1999 Ford F150?

The cost of fixing P2100 can vary depending on the specific cause of the issue and whether you choose to repair it yourself or take it to a mechanic. Costs may include parts and labor.

9. Can a DIY enthusiast repair OBDII code P2100 in a 1999 Ford F150?

Depending on your mechanical skills and access to tools, DIY repair of P2100 is possible for some enthusiasts, especially for tasks like replacing the throttle actuator control motor.

10. Is it necessary to clear the OBDII code P2100 after repairing my 1999 Ford F150?

After repairing P2100, it's recommended to clear the code using an OBDII scanner to reset the Check Engine light and ensure the issue has been successfully addressed.