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P2122 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2122 diagnostic trouble code (DTC) for a 2003 Infiniti G35 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, Malfunctioning 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
P2122 2003 Infiniti G35 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, Malfunctioning 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 17, 2024
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Code P2122 2003 Infiniti G35 Description

The P2122 diagnostic trouble code (DTC) for a 2003 Infiniti G35 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 fuel delivery and ignition timing to optimize engine performance.

OBDII Code P2122 2003 Infiniti G35 - Accelerator Pedal Position Sensor Circuit Range/Performance
P2122 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2122 2003 Infiniti G35

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Malfunctioning ECM
  4. Corrosion or contamination in the sensor connections
  5. Electrical issues such as short circuits or open circuits

Symptoms of P2122 2003 Infiniti G35

  1. Rough idling or engine stalling
  2. Hesitation or lack of response when pressing the accelerator pedal
  3. Reduced engine power or acceleration
  4. Illumination of the Check Engine Light
  5. Limp mode activation, limiting vehicle performance

How to Fix P2122 2003 Infiniti G35

  1. Begin by conducting a thorough inspection of the accelerator pedal position sensor and its wiring harness for any visible damage or corrosion.
  2. Use a multimeter to test the sensor's resistance and voltage output to determine if it is functioning within the manufacturer's specifications.
  3. If the sensor is faulty, replace it with a new one following the manufacturer's guidelines.
  4. Check and repair any damaged wiring or connectors in the sensor circuit to ensure proper electrical connections.
  5. Clear the DTC using a scan tool and perform a test drive to verify that the issue has been resolved.

Cost to Fix P2122 2003 Infiniti G35

The typical repair costs for addressing the P2122 code on a 2003 Infiniti G35 can vary depending on the specific cause of the issue. Replacement of the accelerator pedal position sensor itself can range from $100 to $200, while labor costs may add an additional $100 to $200. Overall, the total repair cost for this issue could be around $200 to $400. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check with local shops for a more accurate estimate.

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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 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P2122 on a 2003 Infiniti G35?

- Common symptoms include reduced engine power, hesitation or stumbling upon acceleration, and the vehicle going into limp mode.

2. What does OBDII code P2122 in a 2003 Infiniti G35 indicate?

- OBDII code P2122 indicates an issue with the accelerator pedal position sensor circuit range or performance.

3. What are the possible causes of OBDII code P2122 on a 2003 Infiniti G35?

- 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 issue related to OBDII code P2122 on my 2003 Infiniti G35?

- You can diagnose the issue by performing a visual inspection of the accelerator pedal position sensor and its wiring, checking for any signs of damage or corrosion. Using a scan tool to monitor sensor data can also help pinpoint the problem.

5. Can I drive my 2003 Infiniti G35 with OBDII code P2122?

- It is not recommended to drive the vehicle with OBDII code P2122, as it can lead to unsafe driving conditions due to reduced engine power and potential acceleration issues.

6. How can I repair OBDII code P2122 on my 2003 Infiniti G35?

- Repairing OBDII code P2122 may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Is it possible to reset OBDII code P2122 on a 2003 Infiniti G35?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue is not addressed, the code is likely to return.

8. How much does it cost to repair OBDII code P2122 on a 2003 Infiniti G35?

- The cost of repairing OBDII code P2122 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

9. Can a DIY enthusiast fix OBDII code P2122 on a 2003 Infiniti G35?

- While some DIY enthusiasts may be able to replace the accelerator pedal position sensor or repair wiring themselves, diagnosing and repairing OBDII code P2122 may require advanced knowledge and tools.

10. How often does OBDII code P2122 occur in a 2003 Infiniti G35?

- OBDII code P2122 can occur in a 2003 Infiniti G35 due to various factors such as wear and tear on the sensor or wiring, so it is recommended to address the issue promptly to avoid further problems.

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