AutoCodes – Ford – P2105 2012 Ford Fusion

P2105 2012 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 2012 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 2,028

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 2012 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 2012 Ford Fusion - Throttle Actuator Control System - Forced Engine Shutdown - AutoCodes.com — P2105 2012 Ford Fusion Code - Throttle Actuator Control System - Forced Engine Shutdown

What does this mean?

What are the Possible Causes of the DTC P2105 2012 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 2012 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 2012 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 2012 Ford Fusion code?

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Need Help with the 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 2012 Ford Fusion Code

1. What does OBDII code P2105 for a 2012 Ford Fusion mean?

The code P2105 indicates a malfunction in the Throttle Actuator Control System, which can lead to a forced engine shutdown.

2. What are the common symptoms of OBDII code P2105 in a 2012 Ford Fusion?

Common symptoms include the engine going into a reduced power mode, difficulty accelerating, and potentially stalling or shutting down unexpectedly.

3. What are the possible causes of OBDII code P2105 in a 2012 Ford Fusion?

Potential causes include a faulty throttle body, damaged wiring or connectors in the throttle actuator control circuit, or issues with the powertrain control module (PCM).

4. How can I diagnose the OBDII code P2105 in my 2012 Ford Fusion?

Diagnosis involves using an OBDII scanner to read the code, checking the throttle body for any visible damage, and inspecting the wiring and connectors for any signs of wear or corrosion.

5. Can I still drive my 2012 Ford Fusion with OBDII code P2105?

It is not recommended to drive your vehicle when experiencing OBDII code P2105, as it can result in sudden engine shutdowns or loss of power while driving.

6. How can I repair OBDII code P2105 in my 2012 Ford Fusion?

Repair options may include replacing the throttle body, repairing or replacing damaged wiring or connectors, or reprogramming the PCM to resolve the issue.

7. Can I reset the OBDII code P2105 in my 2012 Ford Fusion on my own?

While you can reset the code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. Is OBDII code P2105 a common issue in the 2012 Ford Fusion?

While not extremely common, issues related to the Throttle Actuator Control System and code P2105 can occur in the 2012 Ford Fusion, especially with higher mileage vehicles.

9. How much does it cost to repair OBDII code P2105 in a 2012 Ford Fusion?

The cost of repair can vary depending on the root cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can regular maintenance help prevent OBDII code P2105 in my 2012 Ford Fusion?

Regular maintenance, such as keeping the throttle body clean and ensuring proper wiring connections, can help prevent issues that may trigger OBDII code P2105 in your 2012 Ford Fusion.