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Engine-Codes – Toyota – P0120 2011 Toyota Camry

P0120 2011 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Quick Answer

The P0120 diagnostic trouble code (DTC) for a 2011 Toyota Camry indicates a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction. Common causes include Faulty throttle pedal position sensor, Damaged or corroded wiring in the sensor circuit, Loose or poor electrical connections. 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
P0120 2011 Toyota Camry indicates Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction.
Common causes
Common causes include Faulty throttle pedal position sensor, Damaged or corroded wiring in the sensor circuit, Loose or poor electrical connections.
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 13, 2024
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Code P0120 2011 Toyota Camry Description

The P0120 diagnostic trouble code (DTC) for a 2011 Toyota Camry indicates a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction. This code is triggered when the Engine Control Module (ECM) detects an issue with the throttle pedal position sensor or its circuit. The throttle pedal position sensor is responsible for sending signals to the ECM to determine the position of the throttle pedal. This information is crucial for the ECM to adjust the air-fuel mixture and control the engine's performance.

OBDII Code P0120 2011 Toyota Camry - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction
P0120 2011 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Common Causes of P0120 2011 Toyota Camry

  1. Faulty throttle pedal position sensor.
  2. Damaged or corroded wiring in the sensor circuit.
  3. Loose or poor electrical connections.
  4. Issues with the ECM.
  5. Environmental factors such as water intrusion or debris affecting the sensor.

Symptoms of P0120 2011 Toyota Camry

  1. Hesitation or lack of response when pressing the accelerator pedal.
  2. Rough idling or irregular engine speed.
  3. Poor acceleration or loss of power.
  4. Engine stalling or difficulty starting.
  5. Illumination of the Check Engine Light.

How to Fix P0120 2011 Toyota Camry

  1. Begin by diagnosing the issue using a scan tool to retrieve the specific trouble code and determine the exact cause of the malfunction.
  2. Inspect the throttle pedal position sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check the electrical connections to ensure they are secure and free of dirt or debris. Clean or repair any damaged connections.
  4. Clear the trouble code from the ECM's memory using the scan tool and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or other related components.

Cost to Fix P0120 2011 Toyota Camry

The typical repair costs for addressing a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction can range from $150 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less for repairs.

What does this mean?

Tech Notes for P0120 2011 Toyota Camry

Very common problem with Toyota models. Before replacing any parts, try cleaning the throttle body and reset the light. If the codes come back, then it will necessary to replaced the throttle position sensor (TPS which is built into the throttle body).

When is the Code Detected?

Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM.

Need more information about the P0120 2011 Toyota Camry 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 P0120 2011 Toyota Camry Code

1. What are the common symptoms of OBDII code P0120 in a 2011 Toyota Camry?

The common symptoms of code P0120 include issues with acceleration, lack of power, stalling, and in some cases, the vehicle may go into "limp mode" with limited performance.

2. What does the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction mean in a 2011 Toyota Camry?

The code P0120 indicates a malfunction in the circuit related to the throttle pedal position sensor or switch 'A' in the 2011 Toyota Camry, affecting the communication between the accelerator pedal and the engine control unit.

3. What are the possible causes of OBDII code P0120 in a 2011 Toyota Camry?

Common causes of code P0120 in a 2011 Toyota Camry include a faulty throttle position sensor, damaged wiring or connectors in the throttle pedal circuit, or issues with the engine control module.

4. How can I diagnose the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction in my 2011 Toyota Camry?

Diagnosing code P0120 typically involves using an OBDII scanner to read the code, checking the throttle pedal sensor's wiring and connections, and testing the sensor's output voltage to determine if it is functioning properly.

5. Can I still drive my 2011 Toyota Camry with OBDII code P0120?

It is not recommended to drive your 2011 Toyota Camry with code P0120 as it can lead to performance issues, stalling, or safety concerns due to the throttle pedal position sensor malfunction.

6. How do I repair OBDII code P0120 in my 2011 Toyota Camry?

Repairing code P0120 involves replacing the faulty throttle pedal position sensor, repairing or replacing damaged wiring or connectors, and clearing the code with an OBDII scanner after the repairs are completed.

7. Will resetting the OBDII code P0120 in my 2011 Toyota Camry make the issue go away?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing code P0120 is not fixed, the code is likely to reappear once the problem is detected again by the vehicle's systems.

8. Can a DIY enthusiast fix OBDII code P0120 in a 2011 Toyota Camry?

Depending on your skill level and access to tools, a DIY enthusiast may be able to fix code P0120 by replacing the throttle pedal position sensor or repairing wiring issues. However, thorough diagnosis and proper repair are crucial to ensure the problem is resolved correctly.

9. How much does it cost to repair OBDII code P0120 in a 2011 Toyota Camry?

The cost of repairing code P0120 in a 2011 Toyota Camry 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. Costs may include parts and labor.

10. Is OBDII code P0120 a common issue in 2011 Toyota Camry vehicles?

While code P0120 may not be extremely common in 2011 Toyota Camry vehicles, it is a known issue that can arise due to sensor malfunctions or wiring problems, especially as the vehicle ages. Regular maintenance and prompt diagnosis can help prevent this code from occurring.

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