AutoCodes – Ford – P2126 2008 Ford Fusion

P2126 2008 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance

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: P2126 2008 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance.
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.

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Code Popularity 1,989

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2126 2008 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 fault flag is set for sensor 2 by the PCM, indicating the signal is out of the normal self-test operating range

OBDII Code P2126 2008 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance - AutoCodes.com — P2126 2008 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2126 2008 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 P2126 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2126 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 P2126 2008 Ford Fusion code?

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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 P2126 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P2126 in a 2008 Ford Fusion?

The common symptoms include reduced engine power, acceleration hesitation, stalling, and illuminated Check Engine Light.

2. What causes the Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance issue (P2126) in a 2008 Ford Fusion?

Possible causes include a faulty throttle position sensor, wiring issues, poor electrical connection, or a problem with the throttle body.

3. How can I diagnose the P2126 code in my 2008 Ford Fusion?

Diagnosing the code involves using an OBDII scanner to retrieve the code, checking the throttle position sensor's voltage readings, inspecting the wiring for damage, and testing the throttle body for proper operation.

4. Can I drive my 2008 Ford Fusion with the P2126 code?

It is not recommended to drive the vehicle with the P2126 code as it can lead to unsafe driving conditions and potential damage to the engine.

5. How can I repair the Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance issue in my 2008 Ford Fusion?

Repairing the issue may involve replacing the throttle position sensor, repairing any damaged wiring or connections, or cleaning/replacing the throttle body.

6. Is it possible to clear the P2126 code in a 2008 Ford Fusion without fixing the underlying issue?

Clearing the code without fixing the underlying problem may temporarily turn off the Check Engine Light, but the issue will likely reoccur and could potentially cause further damage.

7. How much does it cost to repair the P2126 code in a 2008 Ford Fusion?

The cost of repairing the P2126 code can vary depending on the cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the P2126 code in a 2008 Ford Fusion?

Depending on their skill level and access to tools, a DIY enthusiast may be able to diagnose and repair the P2126 code, especially if it involves simple tasks like sensor replacement or wiring repairs.

9. Will the P2126 code in a 2008 Ford Fusion cause permanent damage if not addressed promptly?

If left unaddressed, the P2126 code can lead to further issues with engine performance and potentially cause damage to other components, so it's best to address the issue promptly.

10. How often does the Throttle/Pedal Position Sensor/Switch 'E' Circuit Range/Performance issue occur in 2008 Ford Fusion vehicles?

While not extremely common, the P2126 code can occur in 2008 Ford Fusion vehicles due to sensor wear, wiring issues, or other factors. Regular maintenance can help prevent such issues.