AutoCodes – Ford – P2135 2007 Ford Fusion

P2135 2007 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 2007 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 3,132

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 2007 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 2007 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation - AutoCodes.com — P2135 2007 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 2007 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 2007 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 2007 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 2007 Ford Fusion Code

1. What does the OBDII code P2135 for a 2007 Ford Fusion mean?

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

2. What are the common symptoms of a P2135 code in a 2007 Ford Fusion?

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

3. What are the possible causes of the P2135 code in a 2007 Ford Fusion?

Possible causes of the P2135 code include a faulty throttle position sensor, pedal position sensor, wiring issues, or a problem with the electronic control module.

4. How can I diagnose the P2135 code in my 2007 Ford Fusion?

Diagnosing the P2135 code typically involves using a scan tool to check for the code, inspecting the throttle and pedal position sensors for proper operation, and testing the related wiring for any issues.

5. Can I still drive my 2007 Ford Fusion with a P2135 code?

It is not recommended to drive your vehicle with a P2135 code as it may result in unsafe driving conditions and potential damage to the engine or other components.

6. How can I repair a P2135 code in my 2007 Ford Fusion?

Repairing a P2135 code may involve replacing the faulty throttle or pedal position sensor, repairing any damaged wiring, or resetting the electronic control module.

7. Will resetting the check engine light resolve the P2135 code in my 2007 Ford Fusion?

Resetting the check engine light may temporarily clear the code, but it is important to address the underlying issue causing the P2135 code to prevent it from reoccurring.

8. Can a DIY enthusiast fix a P2135 code in a 2007 Ford Fusion?

DIY enthusiasts with the necessary tools and knowledge may be able to diagnose and repair a P2135 code in a 2007 Ford Fusion, but it is recommended to seek professional help for accurate diagnosis and repair.

9. How much does it cost to fix a P2135 code in a 2007 Ford Fusion?

The cost of fixing a P2135 code can vary depending on the specific cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts needed.

10. Is the P2135 code a common issue in 2007 Ford Fusion vehicles?

The P2135 code related to the Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation is a known issue in some 2007 Ford Fusion vehicles, especially as the vehicle ages and components wear out.