AutoCodes – Ford – P2135 2010 Ford Fusion

P2135 2010 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation

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: P2135 2010 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation.
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 4,860

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P2135 2010 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 PCM flagged a concern indicating that throttle position voltage PIDs TP1 and TP2 disagree by more than a calibrated limit.

OBDII Code P2135 2010 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation - AutoCodes.com — P2135 2010 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation

What does this mean?

What are the Possible Causes of the DTC P2135 2010 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 P2135 2010 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 P2135 2010 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 P2135 2010 Ford Fusion Code

1. What does the OBDII code P2135 for a 2010 Ford Fusion indicate?

The code P2135 indicates a Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue in the vehicle's electronic throttle control system.

2. What are the common symptoms associated with the P2135 code in a 2010 Ford Fusion?

Common symptoms of the P2135 code include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.

3. What are the potential causes of the P2135 code in a 2010 Ford Fusion?

Possible causes of the P2135 code include a faulty throttle position sensor, accelerator pedal position sensor, damaged wiring or connectors, or issues with the electronic throttle control system.

4. How can I diagnose the P2135 code in my 2010 Ford Fusion?

Diagnosing the P2135 code may involve using a scan tool to read the code, checking the throttle position sensor and accelerator pedal position sensor for proper operation, and inspecting the wiring and connectors for any damage.

5. Can I still drive my 2010 Ford Fusion with the P2135 code present?

It is not recommended to drive your vehicle with the P2135 code present, as it can lead to unsafe driving conditions and potential damage to the engine or other components.

6. How can I repair the Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue in my 2010 Ford Fusion?

Repairing the P2135 code may involve replacing the faulty throttle position sensor or accelerator pedal position sensor, repairing any damaged wiring or connectors, and clearing the code with a scan tool.

7. Is it possible to reset the P2135 code in a 2010 Ford Fusion without fixing the underlying issue?

While you can clear the code temporarily by using a scan tool, it is crucial to address the root cause of the P2135 code to prevent it from reoccurring and potentially causing further damage.

8. How much does it typically cost to repair the P2135 code in a 2010 Ford Fusion?

The cost of repairing the P2135 code can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose to repair it yourself or take it to a professional mechanic.

9. Are there any preventive maintenance measures I can take to avoid the P2135 code in my 2010 Ford Fusion?

Regularly inspecting and maintaining the throttle position sensor, accelerator pedal position sensor, and related components can help prevent issues that may trigger the P2135 code in your vehicle.

10. Will the P2135 code cause my 2010 Ford Fusion to fail an emissions test?

The P2135 code can potentially cause your vehicle to fail an emissions test, as it indicates a problem with the electronic throttle control system, which can affect the engine's performance and emissions output.