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P2138 2007 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation

Quick Answer

The P2138 diagnostic trouble code (DTC) for a 2007 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation. Common causes include Faulty throttle position sensor, Malfunctioning pedal position sensor, Wiring or connector issues in the throttle control system. 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
P2138 2007 Ford Fusion indicates Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation.
Common causes
Common causes include Faulty throttle position sensor, Malfunctioning pedal position sensor, Wiring or connector issues in the throttle control system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P2138 2007 Ford Fusion Description

The P2138 diagnostic trouble code (DTC) for a 2007 Ford Fusion indicates a problem with the Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation. This code is specifically related to the correlation between the throttle position sensor (TPS) and the pedal position sensor (PPS) in the vehicle's electronic throttle control system. The TPS is responsible for monitoring the position of the throttle valve, while the PPS detects the position of the accelerator pedal. The correlation between these two sensors is crucial for the proper operation of the throttle system.

OBDII Code P2138 2007 Ford Fusion - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation
P2138 2007 Ford Fusion Code - Throttle/Pedal Position Sensor/Switch 'D'/'E' Voltage Correlation

Common Causes of P2138 2007 Ford Fusion

  1. Faulty throttle position sensor
  2. Malfunctioning pedal position sensor
  3. Wiring or connector issues in the throttle control system
  4. Electronic control module (ECM) failure
  5. Corrosion or contamination in sensor connections

Symptoms of P2138 2007 Ford Fusion

  1. Reduced engine power
  2. Unresponsive throttle response
  3. Engine stalling or hesitation
  4. Illuminated check engine light
  5. Difficulty maintaining speed or acceleration

How to Fix P2138 2007 Ford Fusion

  1. Diagnose the specific cause of the P2138 code by using a scan tool to check the voltage readings from the TPS and PPS.
  2. Inspect the wiring and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the throttle position sensor and pedal position sensor for proper operation. Replace any faulty sensors.
  4. Clear the DTC and reset the ECM to see if the code returns. Test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the voltage correlation issue.

Cost to Fix P2138 2007 Ford Fusion

The typical repair costs for addressing a P2138 code in a 2007 Ford Fusion can range from $200 to $500, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes the cost of parts such as sensors, wiring, and connectors, as well as labor charges for diagnosis and repair. It is important to note that the actual cost may vary based on the location of the repair shop, the make and model of the vehicle, and the extent of the repairs needed. It is recommended to obtain a detailed quote from a qualified mechanic to get an accurate estimate for this repair. Labor rates at auto repair shops typically range from $80 to $150 per hour, but rates may vary.

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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 P2138 2007 Ford Fusion Code

1. What are the common symptoms of OBDII code P2138 in a 2007 Ford Fusion?

- Common symptoms of P2138 include reduced engine power, hesitation or stalling when accelerating, and illuminated Check Engine Light.

2. What does the OBDII code P2138 indicate in a 2007 Ford Fusion?

- P2138 indicates a fault in the Throttle/Pedal Position Sensor/Switch 'D'/'E' voltage correlation in the vehicle's electronic throttle control system.

3. What are the possible causes of OBDII code P2138 in a 2007 Ford Fusion?

- Possible causes of P2138 include a faulty throttle position sensor, damaged wiring or connectors, a defective accelerator pedal position sensor, or issues with the electronic throttle control module.

4. How can I diagnose the cause of OBDII code P2138 in my 2007 Ford Fusion?

- Diagnosing P2138 typically involves using a scan tool to check for related codes, testing the throttle position sensor and accelerator pedal position sensor, and inspecting the wiring and connectors for any visible damage.

5. Can driving with an OBDII code P2138 in a 2007 Ford Fusion cause further damage?

- Continuing to drive with P2138 may lead to reduced engine performance, potential stalling, and further damage to the electronic throttle control system if the underlying issue is not addressed promptly.

6. Is it safe to continue driving my 2007 Ford Fusion with the OBDII code P2138 present?

- It is generally not recommended to drive with P2138 present, as it can affect the drivability and safety of the vehicle. It is advisable to address the issue as soon as possible.

7. How can I repair OBDII code P2138 in my 2007 Ford Fusion?

- Repairing P2138 may involve replacing the faulty throttle position sensor or accelerator pedal position sensor, repairing damaged wiring or connectors, or reprogramming the electronic throttle control module.

8. Are there any DIY tips for fixing OBDII code P2138 in a 2007 Ford Fusion?

- While some basic diagnostic steps can be performed by DIY enthusiasts, repairing P2138 often requires specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

9. Is resetting the Check Engine Light a sufficient fix for OBDII code P2138 in a 2007 Ford Fusion?

- Simply resetting the Check Engine Light without addressing the underlying issue causing P2138 will not resolve the problem. It is important to diagnose and repair the root cause of the code for a lasting fix.

10. How much does it typically cost to repair OBDII code P2138 in a 2007 Ford Fusion?

- The cost of repairing P2138 can vary depending on the specific cause of the issue, labor rates in your area, and the parts needed. It is advisable to obtain a diagnosis from a mechanic to get an accurate estimate.

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