AutoCodes – Ford – P2127 2009 Ford Fusion

P2127 2009 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Low

Quick Answer

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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: P2127 2009 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'E' Circuit Low.
Common causes: Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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.

Save to My Repairs My Repairs

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

Code Popularity 2,205

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
Cost to Diagnose
FAQs
Comments
Add Comment

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

Code P2127 2009 Ford Fusion Description

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor. Both signals, APP and APP2, have a positive slope (increasing angle, increasing voltage), but are offset and increase at different rates. The 2 pedal position signals make sure the PCM receives a correct input even if 1 signal has a concern. The PCM determines if a signal is incorrect by calculating where it should be, inferred from the other signals. If a concern is present with one of the circuits the other input is used. There are 2 reference voltage circuits, 2 signal return circuits, and 2 signal circuits (a total of 6 circuits and pins) between the PCM and the APP sensor assembly. The pedal position signal is converted to pedal travel degrees (rotary angle) by the PCM. The software converts these degrees to counts, which is the input to the torque based strategy. The accelerator pedal position (APP) sensor 2 is out of self-test range low.

OBDII Code P2127 2009 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'E' Circuit Low - AutoCodes.com — P2127 2009 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2127 2009 Ford Fusion?

Faulty Accelerator Pedal Position (APP) Sensor
Accelerator Pedal Position (APP) Sensor harness is open or shorted
Accelerator Pedal Position (APP) Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2127 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 P2127 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.

Need more information about the P2127 2009 Ford Fusion code?

Need more information on how to fix the P2127 2009 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2127 2009 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 P2127 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P2127 on a 2009 Ford Fusion?

The common symptoms of OBDII code P2127 include reduced engine power, difficulty accelerating, and the vehicle going into limp mode.

2. What can cause the Throttle/Pedal Position Sensor/Switch 'E' Circuit Low code on a 2009 Ford Fusion?

Potential causes of code P2127 on a 2009 Ford Fusion include a faulty throttle position sensor, damaged wiring or connectors, or issues with the electronic control module.

3. How can I diagnose the Throttle/Pedal Position Sensor/Switch 'E' Circuit Low code on my 2009 Ford Fusion?

Diagnosing code P2127 involves using a scan tool to read the code, checking the throttle position sensor's voltage output, and inspecting the wiring and connectors for any visible damage.

4. Can I continue driving my 2009 Ford Fusion with OBDII code P2127?

It is not recommended to continue driving your vehicle with code P2127 as it can lead to further damage and safety hazards. It's best to address the issue promptly.

5. How can I repair OBDII code P2127 on my 2009 Ford Fusion?

Repairing code P2127 may involve replacing the throttle position sensor, repairing damaged wiring or connectors, or reprogramming the electronic control module.

6. Will resetting the OBDII code P2127 on my 2009 Ford Fusion make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear. It's crucial to diagnose and fix the root cause of the problem.

7. Can a DIY enthusiast fix OBDII code P2127 on a 2009 Ford Fusion?

Depending on your mechanical skills and tools, you may be able to address code P2127 yourself by replacing the throttle position sensor or repairing damaged wiring. However, if in doubt, it's best to seek professional help.

8. How much does it typically cost to repair OBDII code P2127 on a 2009 Ford Fusion?

The cost of repairing code P2127 can vary depending on the extent of the issue and whether you choose to do the repairs yourself or seek professional assistance. Costs may include parts, labor, and diagnostic fees.

9. What are the long-term effects of ignoring OBDII code P2127 on a 2009 Ford Fusion?

Ignoring code P2127 can lead to decreased fuel efficiency, engine performance issues, and potential safety risks due to reduced control over throttle response. It's essential to address the problem promptly.

10. Is OBDII code P2127 a common issue in 2009 Ford Fusion vehicles?

While not extremely common, OBDII code P2127 related to the throttle/pedal position sensor can occur in 2009 Ford Fusion models due to sensor wear, wiring issues, or electronic control module malfunctions.