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Engine-Codes – Nissan – P2122 2004 Nissan Maxima

P2122 2004 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 diagnostic trouble code (DTC) for a 2004 Nissan Maxima refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the accelerator pedal position sensor circuit, Corrosion or damage to the sensor or its 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
P2122 2004 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the accelerator pedal position sensor circuit, Corrosion or damage to the sensor or its 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 17, 2024
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Code P2122 2004 Nissan Maxima Description

The P2122 diagnostic trouble code (DTC) for a 2004 Nissan Maxima refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. This code indicates that there is a problem with the signal coming from the accelerator pedal position sensor (APPS) to the engine control module (ECM). The accelerator pedal position sensor is a vital component that communicates the position of the accelerator pedal to the ECM, which then adjusts the throttle accordingly. When the ECM receives a signal that is outside the expected range or performance parameters, it triggers the P2122 code.

OBDII Code P2122 2004 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2004 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2004 Nissan Maxima

  1. Faulty accelerator pedal position sensor
  2. Wiring or connector issues in the accelerator pedal position sensor circuit
  3. Corrosion or damage to the sensor or its connections
  4. ECM software or hardware issues
  5. Environmental factors such as moisture or debris affecting sensor performance

Symptoms of P2122 2004 Nissan Maxima

  1. Reduced engine power
  2. Delayed throttle response
  3. Engine stalling or hesitation
  4. Illumination of the check engine light
  5. Rough idling or erratic engine behavior

How to Fix P2122 2004 Nissan Maxima

  1. Begin by performing a thorough inspection of the accelerator pedal position sensor and its wiring harness for any visible damage or corrosion.
  2. Test the sensor's output voltage using a multimeter to determine if it is within the specified range.
  3. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  4. Clear the DTC from the ECM's memory using a diagnostic scan tool.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the accelerator pedal position sensor is functioning correctly.

Cost to Fix P2122 2004 Nissan Maxima

The cost of repairing a P2122 code on a 2004 Nissan Maxima can vary depending on the specific cause of the issue. In general, the price of a new accelerator pedal position sensor ranges from $50 to $150, while labor costs for installation can range from $80 to $150 per hour. Overall, the total repair cost for this issue could range from $150 to $400, including parts and labor. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your location and vehicle's specific needs.

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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 2004 Nissan Maxima Code

1. What are the common symptoms of OBDII code P2122 on a 2004 Nissan Maxima?

- Common symptoms include issues with acceleration, reduced engine power, and the vehicle going into limp mode.

2. What does the OBDII code P2122 for a 2004 Nissan Maxima indicate?

- The code P2122 indicates a fault in the accelerator pedal position sensor circuit, specifically related to range/performance issues.

3. What are the possible causes of OBDII code P2122 on a 2004 Nissan Maxima?

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

4. How can I diagnose the OBDII code P2122 on my 2004 Nissan Maxima?

- You can diagnose the code by using an OBDII scanner to read the code, checking the wiring and connectors for any damage, and testing the accelerator pedal position sensor.

5. Can I still drive my 2004 Nissan Maxima with the OBDII code P2122?

- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potentially unsafe driving conditions.

6. How can I repair OBDII code P2122 on my 2004 Nissan Maxima?

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

7. Is it possible to reset the OBDII code P2122 on a 2004 Nissan Maxima without repairs?

- While clearing the code may temporarily turn off the check engine light, it is important to address the underlying issue to prevent the code from reoccurring.

8. How much does it typically cost to repair OBDII code P2122 on a 2004 Nissan Maxima?

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

9. Can a DIY enthusiast repair OBDII code P2122 on a 2004 Nissan Maxima?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to replace the accelerator pedal position sensor or repair wiring themselves.

10. Will OBDII code P2122 on a 2004 Nissan Maxima affect fuel efficiency?

- Yes, this code can affect fuel efficiency due to the impact on engine performance and the vehicle going into limp mode, which may result in poor fuel consumption.

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