AutoCodes – Ford – P0123 2012 Ford Fusion

P0123 2012 Ford Fusion Code - Throttle/Pedal Position Sensor 'A' Circuit High

Quick Answer

The throttle position (TP) sensor circuit is monitored by the Powertrain Control Module (PCM) for a high TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). 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: P0123 2012 Ford Fusion indicates Throttle/Pedal Position Sensor 'A' Circuit High.
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 3,565

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 P0123 2012 Ford Fusion Description

OBDII Code P0123 2012 Ford Fusion - Throttle/Pedal Position Sensor 'A' Circuit High - AutoCodes.com — P0123 2012 Ford Fusion Code - Throttle/Pedal Position Sensor 'A' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0123 2012 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 P0123 2012 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 P0123 2012 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 P0123 2012 Ford Fusion code?

Need more information on how to fix the P0123 2012 Ford Fusion code? Get Access to Factory Service Manuals

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 P0123 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P0123 in a 2012 Ford Fusion?

- Common symptoms include issues with acceleration, reduced engine power, stalling, and illuminated Check Engine light.

2. What causes the Throttle/Pedal Position Sensor 'A' Circuit High code in a 2012 Ford Fusion?

- The code P0123 is typically triggered by a faulty throttle position sensor, damaged wiring, or a poor electrical connection.

3. How can I diagnose the source of the Throttle/Pedal Position Sensor 'A' Circuit High code in my Ford Fusion?

- Perform a visual inspection of the sensor and its wiring for any signs of damage. Use a multimeter to test the sensor's voltage output and ensure it is within specifications.

4. Can a dirty throttle body cause the P0123 code in a 2012 Ford Fusion?

- Yes, a dirty throttle body can disrupt the sensor's readings and potentially trigger the P0123 code. Cleaning the throttle body may help resolve the issue.

5. Is it safe to drive my 2012 Ford Fusion with the P0123 code active?

- It is not recommended to drive with the P0123 code present, as it can lead to erratic engine behavior and potential safety risks. Have the issue diagnosed and repaired promptly.

6. How much does it typically cost to repair the Throttle/Pedal Position Sensor 'A' Circuit High code in a 2012 Ford Fusion?

- The cost of repair can vary depending on the exact cause of the issue. Replacing a faulty throttle position sensor can range from $100 to $200, excluding labor costs.

7. Can I reset the P0123 code in my Ford Fusion by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is not a recommended method for resolving the underlying issue. The code is likely to return if the root cause is not addressed.

8. Will replacing the throttle position sensor solve the P0123 code in a 2012 Ford Fusion?

- In many cases, replacing the throttle position sensor will resolve the P0123 code. However, it is essential to ensure proper diagnosis to rule out other potential causes.

9. Can a DIY enthusiast repair the Throttle/Pedal Position Sensor 'A' Circuit High code in a 2012 Ford Fusion?

- Depending on the individual's skill level, replacing the throttle position sensor can be a DIY-friendly repair. However, proper diagnostic tools and techniques are crucial for an accurate fix.

10. How long does it take to repair the P0123 code in a 2012 Ford Fusion at a professional auto repair shop?

- The repair time can vary based on the exact cause and shop's workload. Typically, replacing a throttle position sensor can be completed in 1-2 hours.