AutoCodes – Ford – P2105 2003 Ford F150

P2105 2003 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 2003 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 3,319

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 2003 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 2003 Ford F150 - Throttle Actuator Control System - Forced Engine Shutdown - AutoCodes.com — P2105 2003 Ford F150 Code - Throttle Actuator Control System - Forced Engine Shutdown

What does this mean?

What are the Possible Causes of the DTC P2105 2003 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 2003 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 2003 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 2003 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 2003 Ford F150 Code

1. What are the common symptoms of OBDII code P2105 in a 2003 Ford F150?

- Common symptoms include the vehicle going into limp mode, loss of power, illumination of the check engine light, and difficulty starting the engine.

2. What can cause the Throttle Actuator Control System to force an engine shutdown in a 2003 Ford F150?

- The most common causes of P2105 in a 2003 Ford F150 are a faulty throttle body, damaged throttle position sensor, wiring issues, or a malfunctioning powertrain control module (PCM).

3. How serious is the OBDII code P2105 in a 2003 Ford F150?

- P2105 is a serious issue as it can lead to unexpected engine shutdowns, loss of control while driving, and potential safety hazards. It is important to address this code promptly.

4. Can I continue driving my 2003 Ford F150 with OBDII code P2105?

- It is not recommended to continue driving your vehicle with code P2105 as it can lead to further damage and safety risks. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair OBDII code P2105 in my 2003 Ford F150?

- Diagnosing P2105 typically involves inspecting the throttle body, throttle position sensor, and related wiring for any signs of damage or malfunction. Repair may involve replacing the faulty components or repairing wiring issues.

6. Can a DIY enthusiast fix OBDII code P2105 in a 2003 Ford F150?

- While some DIY enthusiasts may have the skills to diagnose and repair P2105, it is recommended to seek professional help due to the complexity and potential safety risks associated with this code.

7. How much does it cost to repair OBDII code P2105 in a 2003 Ford F150?

- The cost of repairing P2105 can vary depending on the cause of the issue, the extent of the damage, and the labor rates in your area. It is advisable to obtain quotes from reputable mechanics for an accurate estimate.

8. Are there any preventive measures to avoid OBDII code P2105 in a 2003 Ford F150?

- Regular maintenance, such as cleaning the throttle body, inspecting the throttle position sensor, and addressing any warning signs promptly, can help prevent issues that may trigger P2105.

9. Will resetting the PCM clear OBDII code P2105 in a 2003 Ford F150?

- Resetting the PCM may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It is essential to diagnose and repair the root cause of P2105 for a lasting solution.

10. Can extreme weather conditions trigger OBDII code P2105 in a 2003 Ford F150?

- Extreme heat or cold can potentially affect the throttle body and sensors, leading to issues that may trigger P2105. It is important to keep your vehicle well-maintained, especially in harsh weather conditions.