AutoCodes – Ford – P2105 2001 Ford F150

P2105 2001 Ford F150 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 2001 Ford F150 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 2,289

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 2001 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. 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 2001 Ford F150 - Throttle Actuator Control System - Forced Engine Shutdown - AutoCodes.com — P2105 2001 Ford F150 Code - Throttle Actuator Control System - Forced Engine Shutdown

What does this mean?

What are the Possible Causes of the DTC P2105 2001 Ford F150?

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 2001 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 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 2001 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.

Need more information about the P2105 2001 Ford F150 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 2001 Ford F150 Code

What does OBDII code P2105 mean for a 2001 Ford F150?

OBDII code P2105 indicates a problem with the Throttle Actuator Control System, specifically that the system has been forced into engine shutdown mode, often due to a failure in the throttle actuator or related components.

What are common symptoms of the P2105 code?

Common symptoms include the engine going into "limp mode," reduced power, unresponsive throttle, and the check engine light being illuminated.

What could cause the P2105 code to trigger?

Possible causes include a faulty throttle actuator, issues with the throttle position sensor, wiring problems, or a malfunctioning engine control module (ECM).

How can I diagnose the P2105 code?

Start by using an OBDII scanner to confirm the code, then visually inspect the throttle actuator and wiring for damage. Check the throttle position sensor's readings and test the actuator for proper operation.

What are some common repairs for the P2105 code?

Repairs may include replacing the throttle actuator, repairing or replacing damaged wiring, or replacing the throttle position sensor if it is found to be faulty.

Can I drive my 2001 Ford F150 with the P2105 code?

It is not advisable to drive the vehicle in this condition, as the engine may enter limp mode, leading to reduced power and potential safety issues.

How do I clear the P2105 code after repairs?

You can clear the code using an OBDII scanner by selecting the option to erase codes, or by disconnecting the vehicle's battery for a short period (usually around 10-15 minutes).

What should I do if the P2105 code returns after repairs?

If the code returns, further diagnosis may be needed to check for additional underlying issues, such as wiring problems or ECM faults that were not addressed in the initial repair.

Is it safe to ignore the P2105 code?

Ignoring the P2105 code is not safe, as it can lead to significant performance issues and potentially unsafe driving conditions due to the engine's reduced power.

How much does it typically cost to fix the P2105 code?

Repair costs can vary widely depending on the underlying cause, but typical repairs, like replacing the throttle actuator, can range from $200 to $600, including parts and labor.