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P0122 2010 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The P0122 diagnostic trouble code (DTC) for the 2010 Nissan Pathfinder indicates an issue with the Throttle Position Sensor (TPS) or its circuit. Common causes include Faulty Throttle Position Sensor (TPS), Damaged wiring or connectors in the TPS circuit, Malfunctioning Engine Control Module (ECM). 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
P0122 2010 Nissan Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
Common causes
Common causes include Faulty Throttle Position Sensor (TPS), Damaged wiring or connectors in the TPS circuit, Malfunctioning Engine Control Module (ECM).
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 11, 2024
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Code P0122 2010 Nissan Pathfinder Description

The P0122 diagnostic trouble code (DTC) for the 2010 Nissan Pathfinder indicates an issue with the Throttle Position Sensor (TPS) or its circuit. The throttle position sensor is a crucial component of the electronic throttle control system, which helps regulate the engine's air-fuel mixture and ignition timing. The TPS is responsible for sending signals to the vehicle's Engine Control Module (ECM) to determine the throttle position and adjust the amount of air entering the engine accordingly.

OBDII Code P0122 2010 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit Low Input
P0122 2010 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Common Causes of P0122 2010 Nissan Pathfinder

  1. Faulty Throttle Position Sensor (TPS)
  2. Damaged wiring or connectors in the TPS circuit
  3. Malfunctioning Engine Control Module (ECM)
  4. Issues with the throttle body

Symptoms of P0122 2010 Nissan Pathfinder

  1. Engine hesitation or lack of response when accelerating
  2. Rough idling or stalling
  3. Reduced fuel efficiency
  4. Check Engine light illuminated on the dashboard

How to Fix P0122 2010 Nissan Pathfinder

  1. Begin by diagnosing the specific cause of the P0122 code using a diagnostic scanner to pinpoint the issue accurately.
  2. Inspect the Throttle Position Sensor (TPS) for any signs of damage or wear and replace if necessary.
  3. Check the wiring and connectors in the TPS circuit for any breaks, corrosion, or loose connections and repair as needed.
  4. Test the Engine Control Module (ECM) for functionality and replace if deemed faulty.
  5. Ensure the throttle body is functioning correctly and clean it if necessary to prevent any potential issues with throttle response.

Cost to Fix P0122 2010 Nissan Pathfinder

The cost of repairing a Throttle Position Sensor/Switch '1' Circuit Low Input issue can vary depending on the specific cause of the problem and the parts required for repair. On average, the cost of replacing a faulty Throttle Position Sensor can range from $50 to $200, while the cost of diagnosing the issue and labor can add an additional $100 to $300 to the total repair bill. It's important to keep in mind that labor rates and part prices may vary based on location and the type of repair shop, so it's advisable to obtain quotes from multiple sources before proceeding with the repair.

When is the Code Detected?

An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

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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 P0122 2010 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0122 in a 2010 Nissan Pathfinder?

- Common symptoms include poor acceleration, stalling or hesitation when accelerating, rough idling, and potential issues with the vehicle's transmission shifting.

2. What does the OBDII code P0122 indicate in a 2010 Nissan Pathfinder?

- The code P0122 suggests a low input signal from the throttle position sensor or throttle position switch '1' circuit in the vehicle.

3. What are the possible causes of the P0122 code in a 2010 Nissan Pathfinder?

- The code P0122 could be triggered by a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module (ECM).

4. How can I diagnose the cause of the P0122 code in my 2010 Nissan Pathfinder?

- Diagnosing the P0122 code typically involves checking the throttle position sensor's voltage, inspecting the sensor's wiring and connectors for damage, and scanning the ECM for related issues.

5. Can I drive my 2010 Nissan Pathfinder with the P0122 code present?

- It is not recommended to drive your vehicle with the P0122 code present, as it can lead to poor performance, potential safety hazards, and further damage to the engine.

6. How can I repair the P0122 code in my 2010 Nissan Pathfinder?

- Repairing the P0122 code may involve replacing the throttle position sensor, repairing any damaged wiring or connectors, or addressing any underlying issues with the engine control module.

7. Will resetting the OBDII system clear the P0122 code in my 2010 Nissan Pathfinder?

- While clearing the code may temporarily turn off the check engine light, it will not address the underlying issue causing the P0122 code. Proper diagnosis and repair are necessary to resolve the problem.

8. Is it possible to prevent the P0122 code from reoccurring in my 2010 Nissan Pathfinder?

- Regular maintenance, such as checking and cleaning the throttle position sensor, ensuring proper wiring connections, and addressing any ECM issues promptly, can help prevent the recurrence of the P0122 code.

9. Can a DIY enthusiast fix the P0122 code in a 2010 Nissan Pathfinder?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to address the P0122 code by following diagnostic procedures, replacing the throttle position sensor, or fixing wiring issues. If unsure, it's best to consult a professional mechanic.

10. How much does it typically cost to repair the P0122 code in a 2010 Nissan Pathfinder?

- The cost of repairing the P0122 code can vary based on the cause of the issue, the need for parts replacement, and labor charges. It's advisable to obtain quotes from mechanics or repair shops for an accurate estimate.

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