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P2122 2012 Nissan Altima Sedan Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The diagnostic trouble code (DTC) P2122 for a 2012 Nissan Altima Sedan refers to an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the 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
P2122 2012 Nissan Altima Sedan 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, Corrosion or poor connections in the 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 Sep 17, 2024
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Code P2122 2012 Nissan Altima Sedan Description

The diagnostic trouble code (DTC) P2122 for a 2012 Nissan Altima Sedan refers to an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance. This code indicates that the signal from the accelerator pedal position sensor (APPS) has fallen out of the expected range determined by the vehicle's Engine Control Module (ECM). The accelerator pedal position sensor is a crucial component that communicates the position of the accelerator pedal to the ECM, allowing the engine to adjust fuel delivery and ignition timing accordingly.

OBDII Code P2122 2012 Nissan Altima Sedan - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2012 Nissan Altima Sedan Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2012 Nissan Altima Sedan

  1. Faulty accelerator pedal position sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or poor connections in the sensor circuit.
  4. Malfunctioning ECM.
  5. Environmental factors such as moisture or debris affecting the sensor.

Symptoms of P2122 2012 Nissan Altima Sedan

  1. Hesitation or lack of response when pressing the accelerator pedal.
  2. Rough idling or uneven engine performance.
  3. Engine stalling or shutting off unexpectedly.
  4. Reduced power or acceleration.
  5. Illumination of the Check Engine Light on the dashboard.

How to Fix P2122 2012 Nissan Altima Sedan

  1. Begin by diagnosing the issue using a scan tool to confirm the P2122 code and identify the specific cause.
  2. Inspect the accelerator pedal position sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor's resistance and voltage output to determine if it is functioning within specifications.
  4. Replace the accelerator pedal position sensor if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the DTC and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P2122 2012 Nissan Altima Sedan

The typical repair costs for addressing a P2122 code on a 2012 Nissan Altima Sedan can range from $150 to $400, including parts and labor. However, it's important to note that 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. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's advisable to obtain local estimates for a more accurate cost assessment.

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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 2012 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2122 in a 2012 Nissan Altima Sedan?

The common symptoms of code P2122 include issues with acceleration, reduced engine power, and possibly the vehicle going into "limp mode" where it operates at reduced performance.

2. What causes the OBDII code P2122 in a 2012 Nissan Altima Sedan?

The P2122 code is typically triggered by a fault in the accelerator pedal position sensor circuit, indicating a range/performance issue. This may be due to a faulty sensor, damaged wiring, or poor electrical connections.

3. How serious is the OBDII code P2122 in a 2012 Nissan Altima Sedan?

While the vehicle may still be operable with the P2122 code, it is important to address the issue promptly to prevent potential safety hazards and further damage to the engine or transmission.

4. Can I continue driving my 2012 Nissan Altima Sedan with the P2122 code?

It is not recommended to continue driving the vehicle with the P2122 code present, as it can lead to reduced performance and potential safety risks. It is best to have the issue diagnosed and repaired by a qualified mechanic.

5. How can I diagnose the OBDII code P2122 in my 2012 Nissan Altima Sedan?

Diagnosing the P2122 code involves using a scan tool to retrieve the fault code, inspecting the accelerator pedal position sensor and its circuit for any visible damage, and testing the sensor's functionality using a multimeter.

6. What are some repair tips for fixing the OBDII code P2122 in a 2012 Nissan Altima Sedan?

Repairing the P2122 code may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, and clearing the fault code with a scan tool. It is recommended to follow the manufacturer's diagnostic and repair procedures.

7. Can I reset the OBDII code P2122 in my 2012 Nissan Altima Sedan by disconnecting the battery?

While disconnecting the battery may reset the code temporarily, it is not a recommended long-term solution. It is best to address the underlying issue causing the P2122 code to prevent it from reoccurring.

8. How much does it cost to repair the OBDII code P2122 in a 2012 Nissan Altima Sedan?

The cost of repairing the P2122 code can vary depending on the cause of the issue, the labor rates in your area, and whether you choose to go to a dealership or an independent mechanic. It is advisable to get quotes from different shops.

9. Is the OBDII code P2122 covered under warranty for a 2012 Nissan Altima Sedan?

If your vehicle is still under warranty, the repair for the P2122 code may be covered depending on the terms of the warranty. It is recommended to check with your dealership or refer to your warranty documentation for more information.

10. How can I prevent the OBDII code P2122 from appearing in my 2012 Nissan Altima Sedan in the future?

To prevent the recurrence of the P2122 code, it is essential to perform regular maintenance on your vehicle, including checking the condition of the accelerator pedal position sensor and its circuit, as well as ensuring proper electrical connections.

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