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

Quick Answer

The P2135 Ford code indicates a problem with the throttle/pedal position sensor or switch 'A'/'B' voltage correlation. Common causes include Faulty throttle position sensor, Faulty pedal position sensor, Wiring or connector issues in the throttle or pedal position sensor circuit. 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 Ford indicates Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation.
Common causes
Common causes include Faulty throttle position sensor, Faulty pedal position sensor, Wiring or connector issues in the throttle or pedal position sensor circuit.
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 Aug 18, 2024
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Code P2135 Ford Description

The P2135 Ford code indicates a problem with the throttle/pedal position sensor or switch 'A'/'B' voltage correlation. This means that the voltage signals from the throttle position sensor and the pedal position sensor are not matching up as they should be, leading to potential issues with the vehicle's throttle control system. The throttle position sensor is responsible for monitoring the position of the throttle valve, while the pedal position sensor detects the position of the accelerator pedal. When these sensors do not correlate properly, it can result in poor engine performance, hesitation, or even stalling.

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

Common Causes of P2135 Ford

  1. Faulty throttle position sensor
  2. Faulty pedal position sensor
  3. Wiring or connector issues in the throttle or pedal position sensor circuit
  4. Electronic control module (ECM) malfunction
  5. Water or corrosion damage to the sensors or wiring

Symptoms of P2135 Ford

  1. Engine hesitation or lack of response when accelerating
  2. Reduced engine power
  3. Illumination of the Check Engine Light
  4. Rough idling or stalling
  5. Difficulty in maintaining a consistent speed

How to Fix P2135 Ford

  1. Perform a thorough inspection of the throttle and pedal position sensors, as well as the wiring and connectors for any signs of damage or corrosion.
  2. Test the sensors using a multimeter to check for proper voltage output when the throttle is operated.
  3. Replace any faulty sensors or components, ensuring proper installation and calibration.
  4. Clear the diagnostic trouble codes from the vehicle's ECM using a scan tool.
  5. Test drive the vehicle to ensure the issue has been resolved and the code does not reappear.

Cost to Fix P2135 Ford

The cost of repairing a P2135 Ford code can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the cost of replacing a throttle position sensor or pedal position sensor ranges from $100 to $200 for the part alone. Labor costs can add an additional $100 to $200, bringing the total repair cost to around $200 to $400. However, it's important to note that labor rates can vary significantly depending on the location and the repair shop, so it's advisable to obtain quotes from multiple sources before proceeding with the repair.

What does this mean?

Tech Notes for P2135 Ford













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Information for Specific Ford Models

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 Ford Code

1. What are the common symptoms of OBDII code P2135 in a Ford vehicle?

- Common symptoms include reduced engine power, hesitation or stalling, rough idling, and the vehicle going into limp mode.

2. What does the OBDII code P2135 for a Ford indicate?

- The code P2135 indicates a Throttle/Pedal Position Sensor/Switch 'A'/'B' Voltage Correlation issue.

3. What are the possible causes of OBDII code P2135 in a Ford related to the Throttle/Pedal Position Sensor/Switch?

- Possible causes include a faulty throttle position sensor, pedal position sensor, wiring issues, or a problem with the electronic throttle control system.

4. How can I diagnose the OBDII code P2135 in a Ford related to the Throttle/Pedal Position Sensor/Switch?

- Diagnosing the issue involves checking the sensor readings using a scan tool, inspecting the sensor wiring for damage or loose connections, and performing a physical inspection of the sensors.

5. Can I continue driving my Ford with the OBDII code P2135 present?

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

6. How can I repair the OBDII code P2135 related to the Throttle/Pedal Position Sensor/Switch in my Ford?

- Repairing the issue may involve replacing the faulty sensors, repairing damaged wiring, or resetting the electronic throttle control system.

7. Is it possible to reset the OBDII code P2135 in a Ford without repairs?

- Resetting the code without addressing the underlying issue may temporarily clear the code, but it is likely to return if the root cause is not fixed.

8. Are there any preventive maintenance tips to avoid OBDII code P2135 in a Ford?

- Regularly inspecting and maintaining the throttle and pedal position sensors, as well as the wiring harness, can help prevent issues leading to the P2135 code.

9. Can a DIY enthusiast fix the OBDII code P2135 in a Ford, or is professional help required?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address the P2135 code themselves. However, complex issues may require professional assistance.

10. How long does it typically take to repair the OBDII code P2135 in a Ford at a mechanic's shop?

- The repair time can vary based on the specific cause of the code and the shop's workload, but it typically takes a few hours to diagnose and repair the P2135 code related to the Throttle/Pedal Position Sensor/Switch in a Ford vehicle.

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