Engine-CodesNissan – P2122 2005 Nissan Pathfinder

P2122 2005 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 diagnostic trouble code for a 2005 Nissan Pathfinder refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, 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 2005 Nissan Pathfinder indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2122 2005 Nissan Pathfinder Description

The P2122 diagnostic trouble code for a 2005 Nissan Pathfinder refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. This code indicates that there is a problem with the accelerator pedal position sensor, which is responsible for sending signals to the engine control module (ECM) regarding the position of the accelerator pedal. The ECM uses this information to adjust the fuel and air mixture to optimize engine performance.

OBDII Code P2122 2005 Nissan Pathfinder - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2005 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2005 Nissan Pathfinder

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. ECM malfunction
  4. Corrosion or contamination in the sensor circuit
  5. Poor electrical connection

Symptoms of P2122 2005 Nissan Pathfinder

  1. Rough idling or engine performance
  2. Lack of power or acceleration
  3. Engine stalling or hesitation
  4. Check Engine light illuminated
  5. Limp mode activation

How to Fix P2122 2005 Nissan Pathfinder

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and perform a visual inspection of the accelerator pedal position sensor and its wiring.
  2. Test the accelerator pedal position sensor using a multimeter to check for proper voltage and resistance values.
  3. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as needed.
  4. Clear the trouble codes from the ECM and reset the system.
  5. Test drive the vehicle to ensure that the issue has been resolved and the code does not return.

Cost to Fix P2122 2005 Nissan Pathfinder

The typical repair costs for addressing the P2122 code on a 2005 Nissan Pathfinder can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. Additional costs may apply if the accelerator pedal position sensor or ECM needs to be replaced. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources before proceeding with the repair.

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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 2005 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P2122 in a 2005 Nissan Pathfinder?

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

2. What does the OBDII code P2122 on a 2005 Nissan Pathfinder indicate?

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

3. What are the possible causes of OBDII code P2122 in a 2005 Nissan Pathfinder?

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

4. How can I diagnose the OBDII code P2122 in my 2005 Nissan Pathfinder?

- Diagnosis typically involves using a scan tool to read the code, checking the accelerator pedal position sensor for proper operation, and inspecting the sensor circuit for any damage.

5. Is it safe to drive with OBDII code P2122 in a 2005 Nissan Pathfinder?

- It is generally not recommended to drive with this code as it can lead to performance issues and potential safety concerns. It is best to address the issue promptly.

6. Can I repair OBDII code P2122 in my 2005 Nissan Pathfinder myself?

- Depending on your skill level, you may be able to repair this issue yourself by replacing the accelerator pedal position sensor or addressing any wiring issues. However, professional help is recommended for accurate diagnosis and repair.

7. Will resetting the OBDII code P2122 in my 2005 Nissan Pathfinder make it go away permanently?

- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue is not fixed, the code is likely to return.

8. How much does it typically cost to repair OBDII code P2122 in a 2005 Nissan Pathfinder?

- The cost of repair can vary depending on the cause of the issue, but it may range from around $100 to $300 for parts and labor.

9. Can a faulty accelerator pedal position sensor cause other problems in a 2005 Nissan Pathfinder?

- Yes, a faulty sensor can cause drivability issues, poor acceleration, and potentially affect other engine functions, so it's important to address the problem promptly.

10. How long does it usually take to repair OBDII code P2122 in a 2005 Nissan Pathfinder?

- The repair time can vary based on the exact cause of the issue, but it typically takes a few hours to diagnose and replace the faulty components.

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