AutoCodes – Ford – P2105 2009 Ford Fusion

P2105 2009 Ford Fusion Code - Throttle Actuator Control System - Forced Engine Shutdown

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 (TAC), Throttle Actuator Control (TAC) harness is open or shorted, Throttle Actuator Control (TAC) 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: P2105 2009 Ford Fusion indicates Throttle Actuator Control System - Forced Engine Shutdown.
Common causes: Common causes include Faulty Throttle Actuator Control (TAC), Throttle Actuator Control (TAC) harness is open or shorted, Throttle Actuator Control (TAC) 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 2,423

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2105 2009 Ford Fusion 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. The P2105 code is set when the Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced engine shutdown.

OBDII Code P2105 2009 Ford Fusion - Throttle Actuator Control System - Forced Engine Shutdown - AutoCodes.com — P2105 2009 Ford Fusion Code - Throttle Actuator Control System - Forced Engine Shutdown

What does this mean?

What are the Possible Causes of the DTC P2105 2009 Ford Fusion?

Faulty Throttle Actuator Control (TAC)
Throttle Actuator Control (TAC) harness is open or shorted
Throttle Actuator Control (TAC) circuit poor electrical connection

How to Fix the DTC P2105 2009 Ford Fusion?

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 does this mean?

Code Tech Notes

The P2105 code is an informational code and may be set in combination with a number of other codes which are causing the FMEM. Diagnose other codes first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2105 2009 Ford Fusion 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.

Need more information about the P2105 2009 Ford Fusion code?

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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 P2105 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P2105 in a 2009 Ford Fusion?

- Common symptoms include the vehicle going into "limp mode," reduced engine power, difficulty accelerating, and the Check Engine light illuminating.

2. What does OBDII code P2105 on a 2009 Ford Fusion indicate?

- OBDII code P2105 indicates a problem with the Throttle Actuator Control System, leading to a forced engine shutdown to prevent damage.

3. What are the possible causes of OBDII code P2105 in a 2009 Ford Fusion?

- Possible causes include a faulty electronic throttle control actuator, wiring issues, a defective throttle position sensor, or a malfunctioning PCM.

4. How can I diagnose the source of OBDII code P2105 in my 2009 Ford Fusion?

- Diagnose the code by checking the throttle body for any dirt or debris, inspecting the wiring and connectors for damage, and using a scan tool to monitor sensor readings.

5. Can I drive my 2009 Ford Fusion with OBDII code P2105?

- It is not recommended to drive the vehicle with OBDII code P2105 as it can lead to safety issues and further damage to the engine.

6. How can I repair OBDII code P2105 in my 2009 Ford Fusion?

- Repair options include cleaning the throttle body, repairing or replacing damaged wiring, replacing the throttle position sensor, or replacing the electronic throttle control actuator.

7. Is it safe to reset the OBDII code P2105 in my 2009 Ford Fusion using a scanner?

- Resetting the code may temporarily clear the Check Engine light, but it is essential to diagnose and repair the underlying issue to prevent the code from reoccurring.

8. Will OBDII code P2105 in a 2009 Ford Fusion cause permanent damage if not addressed promptly?

- Ignoring OBDII code P2105 can lead to further engine problems and potentially cause permanent damage if the underlying issue is not resolved in a timely manner.

9. Can extreme weather conditions trigger OBDII code P2105 in a 2009 Ford Fusion?

- Extreme weather conditions, such as extreme cold or heat, can sometimes exacerbate existing issues with the throttle actuator control system, leading to the triggering of OBDII code P2105.

10. How much can I expect to pay for professional repairs related to OBDII code P2105 in my 2009 Ford Fusion?

- The cost of repairs for OBDII code P2105 can vary depending on the specific issue, but it is advisable to budget for diagnostic fees, parts, and labor costs, which can range from a few hundred to over a thousand dollars.