AutoCodes – Ford – P2104 2008 Ford Fusion

P2104 2008 Ford Fusion Code - Throttle Actuator Control System Forced Idle

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: P2104 2008 Ford Fusion indicates Throttle Actuator Control System Forced Idle.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 6,004

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2104 2008 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 P2104 code is set when the Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced idle.

OBDII Code P2104 2008 Ford Fusion - Throttle Actuator Control System Forced Idle - AutoCodes.com — P2104 2008 Ford Fusion Code - Throttle Actuator Control System Forced Idle

What does this mean?

What are the Possible Causes of the DTC P2104 2008 Ford Fusion?

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

How to Fix the DTC P2104 2008 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 P2104 code is an informational code only and may set in combination with a number of other codes which are causing the Failure Mode Effects Management (FMEM). If other codes are present, diagnose other codes first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2104 2008 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 P2104 2008 Ford Fusion code?

Need more information on how to fix the P2104 2008 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2104 2008 Ford Fusion code diagnosed by a professional: Find a repair shop in your area

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 P2104 2008 Ford Fusion Code

1. What does OBDII code P2104 on a 2008 Ford Fusion indicate?

The code P2104 indicates an issue with the Throttle Actuator Control System Forced Idle on the 2008 Ford Fusion.

2. What are the common symptoms of OBDII code P2104 in a 2008 Ford Fusion?

Common symptoms of code P2104 include the vehicle going into "limp mode," reduced engine power, and the inability to accelerate properly.

3. What are the possible causes of OBDII code P2104 on a 2008 Ford Fusion?

Potential causes of code P2104 include a faulty throttle actuator control module, wiring issues, a stuck throttle plate, or a malfunctioning accelerator pedal position sensor.

4. How can I diagnose the OBDII code P2104 on my 2008 Ford Fusion?

Diagnosing code P2104 involves using a scan tool to check for the specific trouble code, inspecting the throttle actuator control module and related wiring, and testing the throttle body for proper functionality.

5. Can I drive my 2008 Ford Fusion with OBDII code P2104?

It is not recommended to drive your Ford Fusion with code P2104 as it can lead to safety hazards and further damage to the vehicle. It's best to address the issue promptly.

6. How can I repair OBDII code P2104 on my 2008 Ford Fusion?

Repairing code P2104 may involve replacing the throttle actuator control module, repairing any wiring issues, cleaning the throttle body, or replacing the accelerator pedal position sensor as needed.

7. Is it possible to clear OBDII code P2104 on a 2008 Ford Fusion without fixing the underlying issue?

Clearing the code without addressing the underlying problem will likely result in the code reappearing once the issue is detected again by the vehicle's onboard diagnostic system.

8. Can a DIY enthusiast fix OBDII code P2104 on a 2008 Ford Fusion?

Depending on their skill level and access to tools, a DIY enthusiast may be able to address code P2104 by following repair guides or consulting with a professional for guidance.

9. How much does it typically cost to repair OBDII code P2104 on a 2008 Ford Fusion?

The cost of repairing code P2104 can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It's advisable to obtain quotes from reputable mechanics or repair shops.

10. How often does OBDII code P2104 occur in a 2008 Ford Fusion?

Code P2104 can occur sporadically or more frequently depending on the condition of the throttle actuator control system and related components in the 2008 Ford Fusion. Regular maintenance can help prevent this issue.