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P2122 2009 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 code on a 2009 Nissan Pathfinder indicates a problem with the Accelerator Pedal Position Sensor Circuit, specifically relating to its range or performance. Common causes include Faulty accelerator pedal position sensor, Damaged or corroded wiring/connectors related to the sensor, ECM malfunction. 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
P2122 2009 Nissan Pathfinder indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged or corroded wiring/connectors related to the sensor, ECM malfunction.
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 10, 2024
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Code P2122 2009 Nissan Pathfinder Description

The P2122 code on a 2009 Nissan Pathfinder indicates a problem with the Accelerator Pedal Position Sensor Circuit, specifically relating to its range or performance. The accelerator pedal position sensor is a crucial component that communicates the position of the accelerator pedal to the engine control module (ECM). This information is used to adjust fuel delivery and ignition timing, ultimately affecting the vehicle's performance.

OBDII Code P2122 2009 Nissan Pathfinder - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2009 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2009 Nissan Pathfinder

  1. Faulty accelerator pedal position sensor.
  2. Damaged or corroded wiring/connectors related to the sensor.
  3. ECM malfunction.
  4. Environmental factors such as moisture or debris affecting sensor operation.
  5. Vehicle vibration or impact causing sensor misalignment.

Symptoms of P2122 2009 Nissan Pathfinder

  1. Poor acceleration or lack of response when pressing the accelerator pedal.
  2. Engine hesitation or surging during acceleration.
  3. Rough idling or stalling at idle.
  4. Check Engine Light illuminated on the dashboard.
  5. Reduced fuel efficiency or increased emissions.

How to Fix P2122 2009 Nissan Pathfinder

  1. Begin by diagnosing the issue using an OBD-II scanner to retrieve the specific trouble code.
  2. Inspect the accelerator pedal position sensor and related wiring/connectors for any visible damage or corrosion.
  3. Test the sensor's output using a multimeter to ensure it is within specified parameters.
  4. If the sensor is faulty, replace it with a new one following manufacturer guidelines.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2122 2009 Nissan Pathfinder

The typical repair costs for addressing a P2122 code on a 2009 Nissan Pathfinder can range from $150 to $400, depending on the specific cause of the issue and the cost of replacement parts. This estimate includes parts and labor, but it is important to note that prices can vary based on factors such as location, vehicle make and model, and engine type. Additionally, diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It is advisable to consult with a local mechanic or dealership for a more accurate estimate based on your specific circumstances.

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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 P2122 2009 Nissan Pathfinder Code

1. What does OBDII code P2122 on a 2009 Nissan Pathfinder indicate?

- OBDII code P2122 indicates a problem with the Accelerator Pedal Position Sensor Circuit Range/Performance.

2. What are the common symptoms of a P2122 code in a 2009 Nissan Pathfinder?

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

3. What are the possible causes of a P2122 code in a 2009 Nissan Pathfinder?

- Possible causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose a P2122 code in my 2009 Nissan Pathfinder?

- To diagnose a P2122 code, you can use an OBDII scanner to read the code and look for any related codes. Inspect the accelerator pedal position sensor and its wiring for any visible issues.

5. Can I still drive my 2009 Nissan Pathfinder with a P2122 code?

- It is not recommended to drive your vehicle with a P2122 code as it can lead to further damage and safety risks. It is best to address the issue promptly.

6. How can I repair a P2122 code on my 2009 Nissan Pathfinder?

- Repair options include replacing the accelerator pedal position sensor, repairing any damaged wiring or connectors, or resetting the engine control module.

7. Is it necessary to visit a mechanic for a P2122 code on a 2009 Nissan Pathfinder?

- While some DIY enthusiasts may attempt to diagnose and repair the issue themselves, it is recommended to seek professional help to ensure the problem is properly addressed.

8. How much does it cost to fix a P2122 code in a 2009 Nissan Pathfinder?

- The cost of fixing a P2122 code can vary depending on the cause of the issue, the parts needed for repair, and labor costs at a mechanic or dealership.

9. Can a P2122 code in a 2009 Nissan Pathfinder cause other problems if left unresolved?

- Yes, leaving a P2122 code unresolved can lead to further engine performance issues, reduced fuel efficiency, and potential safety hazards while driving.

10. How can I prevent a P2122 code from occurring in my 2009 Nissan Pathfinder in the future?

- Regular maintenance checks, including inspecting the accelerator pedal position sensor and its wiring, can help prevent a P2122 code from occurring.

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