AutoCodes – Ford – P0121 2006 Ford Fusion

P0121 2006 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance

Quick Answer

The throttle position (TP) sensor circuit is monitored by the Powertrain Control Module (PCM) for a non-closed throttle position at idle. Common causes include Dirty throttle plate, Faulty throttle position sensor, Throttle position sensor harness is open or shorted. 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: P0121 2006 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance.
Common causes: Common causes include Dirty throttle plate, Faulty throttle position sensor, Throttle position sensor harness is open or shorted.
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 4,504

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0121 2006 Ford Fusion Description

The throttle position (TP) sensor circuit is monitored by the Powertrain Control Module (PCM) for a non-closed throttle position at idle. The test fails if the key on engine running (KOER) self-test terminates upon placing the transmission gear selector in DRIVE or REVERSE or the TP closed throttle position is not achieved when closing the throttle (idle) after opening it (in PARK or NEUTRAL).

OBDII Code P0121 2006 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance - AutoCodes.com — P0121 2006 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P0121 2006 Ford Fusion?

Dirty throttle plate
Faulty throttle position sensor
Throttle position sensor harness is open or shorted
Throttle position sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0121 2006 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

You can try to clean the throttle body, before any other repairs.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0121 2006 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 P0121 2006 Ford Fusion 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 P0121 2006 Ford Fusion Code

1. What does the OBDII code P0121 for a 2006 Ford Fusion indicate?

The code P0121 on a 2006 Ford Fusion points to an issue with the Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance.

2. What are the common symptoms of a P0121 error code on a 2006 Ford Fusion?

Common symptoms of a P0121 code in a 2006 Ford Fusion include poor acceleration, reduced power, rough idling, and potential stalling.

3. What are the possible causes of the P0121 code on a 2006 Ford Fusion?

The P0121 code on a 2006 Ford Fusion can be triggered by a faulty throttle position sensor, damaged wiring or connectors, throttle body issues, or a malfunctioning PCM.

4. How can I diagnose the cause of a P0121 code on my 2006 Ford Fusion?

To diagnose the cause of a P0121 code, you can perform a visual inspection of wiring and connectors, test the throttle position sensor, check the throttle body for obstructions, and scan the vehicle for other related trouble codes.

5. Can I still drive my 2006 Ford Fusion with a P0121 error code?

Driving with a P0121 code on a 2006 Ford Fusion is not recommended as it can lead to poor performance, potential stalling, and further damage to the vehicle if left unresolved.

6. How can I repair a P0121 error code on my 2006 Ford Fusion?

Repairing a P0121 code on a 2006 Ford Fusion involves replacing the throttle position sensor, repairing any damaged wiring or connectors, cleaning the throttle body, and resetting the PCM.

7. Is it possible to reset the P0121 code on a 2006 Ford Fusion without repairing the issue?

While clearing the error code may temporarily turn off the Check Engine Light, it is not recommended to ignore the underlying issue causing the P0121 code in a 2006 Ford Fusion.

8. How much does it cost to fix a P0121 error code on a 2006 Ford Fusion?

The cost of fixing a P0121 code on a 2006 Ford Fusion can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast repair a P0121 code on a 2006 Ford Fusion?

If you have the necessary tools and knowledge, you may be able to replace the throttle position sensor or check wiring connections yourself to address a P0121 code on a 2006 Ford Fusion.

10. Will a P0121 code on a 2006 Ford Fusion affect fuel efficiency?

Yes, a P0121 code on a 2006 Ford Fusion can impact fuel efficiency due to poor engine performance and improper throttle control. It is advisable to address the issue promptly to maintain optimal fuel economy.