AutoCodes – Ford – P2105 1998 Ford F150

P2105 1998 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 1998 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 2,465

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 1998 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 1998 Ford F150 - Throttle Actuator Control System - Forced Engine Shutdown - AutoCodes.com — P2105 1998 Ford F150 Code - Throttle Actuator Control System - Forced Engine Shutdown

What does this mean?

What are the Possible Causes of the DTC P2105 1998 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 1998 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 1998 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 1998 Ford F150 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 1998 Ford F150 Code

1. What are common symptoms of OBDII code P2105 in a 1998 Ford F150?

- Common symptoms include the engine going into a forced shutdown mode, reduced engine power, and the vehicle may not accelerate properly.

2. What causes the OBDII code P2105 in a 1998 Ford F150?

- The code P2105 is typically triggered by a malfunction in the throttle actuator control system, which may be caused by a faulty throttle position sensor, wiring issues, or a problem with the throttle body itself.

3. How can I diagnose the OBDII code P2105 in my 1998 Ford F150?

- Diagnosing the P2105 code usually involves checking the throttle position sensor and inspecting the throttle body for any signs of damage or malfunction. It is recommended to use a professional OBDII scanner for accurate diagnosis.

4. Can I still drive my 1998 Ford F150 with the OBDII code P2105?

- It is not recommended to drive your vehicle with the P2105 code present, as it can lead to sudden engine shutdowns and potentially unsafe driving conditions. It is best to address the issue promptly.

5. How can I repair the OBDII code P2105 in my 1998 Ford F150?

- Repairing the P2105 code may involve replacing the throttle position sensor, repairing any damaged wiring, or cleaning/replacing the throttle body. It is advisable to consult a professional mechanic for proper repair.

6. Are there any DIY tips for fixing the OBDII code P2105 in my 1998 Ford F150?

- While some basic tasks like checking for loose connections or damaged wiring can be done DIY, it is recommended to seek professional help for accurate diagnosis and repair of the P2105 code.

7. What are the potential risks of ignoring the OBDII code P2105 in my 1998 Ford F150?

- Ignoring the P2105 code can lead to continued engine shutdowns, reduced performance, and potential safety hazards while driving. It is crucial to address the issue promptly to avoid further damage.

8. Can resetting the OBDII code P2105 in my 1998 Ford F150 temporarily fix the issue?

- While clearing the code may temporarily remove the warning light, it will not fix the underlying problem causing the P2105 code. It is important to diagnose and repair the issue to prevent future occurrences.

9. How long does it typically take to repair the OBDII code P2105 in a 1998 Ford F150?

- The repair time for the P2105 code can vary depending on the exact cause of the issue and the availability of parts. It is best to consult with a mechanic for a more accurate estimate of repair time.

10. Is the OBDII code P2105 in a 1998 Ford F150 a common issue?

- The P2105 code related to the throttle actuator control system is not uncommon in vehicles, including the 1998 Ford F150. Proper maintenance and timely repairs can help prevent this issue.