AutoCodes – Ford – P1120 2009 Ford Fusion

P1120 2009 Ford Fusion Code - Throttle Position Sensor Out of Range

Quick Answer

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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: P1120 2009 Ford Fusion indicates Throttle Position Sensor Out of Range.
Common causes: Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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 3,161

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 Apr 25, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1120 2009 Ford Fusion Description

The Throttle Position Sensor (TPS) responds to the accelerator pedal movement. The TPS is a rotary potentiometer sensor that provides a signal to the Powertrain Control Module (PCM) that is linearly proportional to the throttle plate/shaft position. As the TPS is rotated by the throttle shaft, the following operating conditions are determined by the PCM:
• Closed throttle (includes idle or deceleration)
• Part throttle (includes cruise or moderate acceleration)
• Wide open throttle (includes maximum acceleration or de-choke on crank)
• Throttle angle rate

OBDII Code P1120 2009 Ford Fusion - Throttle Position Sensor Out of Range - AutoCodes.com — P1120 2009 Ford Fusion Code - Throttle Position Sensor Out of Range

What does this mean?

What are the Possible Causes of the DTC P1120 2009 Ford Fusion?

Faulty throttle position sensor
Throttle position sensor harness is open or shorted
Throttle position sensor circuit poor electrical connection
Throttle position sensor not properly adjusted

How to Fix the DTC P1120 2009 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1120 2009 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.

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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 P1120 2009 Ford Fusion Code

What does the OBDII code P1120 mean for a 2009 Ford Fusion?

P1120 indicates that the throttle position sensor (TPS) is detecting readings that are out of the expected range, which can affect engine performance and throttle control.

What are the common symptoms of code P1120 on a 2009 Ford Fusion?

Symptoms may include poor acceleration, erratic engine performance, reduced fuel efficiency, and the Check Engine Light turning on.

What causes the P1120 code to appear on a 2009 Ford Fusion?

Common causes include a faulty throttle position sensor, damaged wiring or connectors, carbon buildup in the throttle body, or issues with the PCM (powertrain control module).

Can I drive my 2009 Ford Fusion with the P1120 code?

Although the car may still be drivable, continuing to drive with this code can lead to further engine performance issues and potential safety concerns. Itâ€™s best to address it promptly.

How do I diagnose the P1120 code on a 2009 Ford Fusion?

Start by inspecting the TPS and its wiring for damage or corrosion. Use a multimeter to test the TPS voltage and ensure it falls within the correct range specified by the manufacturer.

How do I fix the P1120 code on a 2009 Ford Fusion?

Repairs typically involve replacing the faulty throttle position sensor, cleaning the throttle body, repairing damaged wiring or connectors, or recalibrating the TPS using a scan tool.

Is replacing the throttle position sensor the only solution for the P1120 code?

No, the issue could also be due to wiring problems, throttle body contamination, or a PCM malfunction, so a proper diagnosis is necessary before replacing parts.

How much does it cost to fix the P1120 code on a 2009 Ford Fusion?

Costs can vary depending on the repair needed, but replacing a throttle position sensor typically costs between $100-$300, including parts and labor.

Can a dirty throttle body cause the P1120 code on a 2009 Ford Fusion?

Yes, carbon buildup in the throttle body can interfere with the TPS readings and cause the sensor to detect values out of range.

Do I need special tools to fix the P1120 code on a 2009 Ford Fusion?

You may need basic tools and a digital multimeter for testing the TPS. A scan tool may also be required to clear the code and recalibrate the sensor after repairs.