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P2123 2005 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2123 code for a 2005 Infiniti G35 indicates a problem with the accelerator pedal position sensor circuit's range or performance. Common causes include Faulty accelerator pedal position sensor, Wiring harness issues or loose connections, Sensor calibration problems. 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
P2123 2005 Infiniti G35 indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring harness issues or loose connections, Sensor calibration problems.
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 12, 2024
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Code P2123 2005 Infiniti G35 Description

The P2123 code for a 2005 Infiniti G35 indicates a problem with the accelerator pedal position sensor circuit's range or performance. The accelerator pedal position sensor is a crucial component that communicates the driver's input to the engine control module, allowing the vehicle to adjust the throttle accordingly. When this sensor malfunctions or sends incorrect signals, it can lead to issues with the engine's performance and overall drivability.

OBDII Code P2123 2005 Infiniti G35 - Accelerator Pedal Position Sensor Circuit Range/Performance
P2123 2005 Infiniti G35 Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2123 2005 Infiniti G35

  1. Faulty accelerator pedal position sensor
  2. Wiring harness issues or loose connections
  3. Sensor calibration problems
  4. Engine control module malfunction
  5. Environmental factors such as moisture or corrosion affecting sensor performance

Symptoms of P2123 2005 Infiniti G35

  1. Check engine light illuminated on the dashboard
  2. Poor acceleration or hesitation when pressing the accelerator pedal
  3. Rough idling or stalling while driving
  4. Decreased fuel efficiency
  5. Vehicle going into limp mode

How to Fix P2123 2005 Infiniti G35

  1. Diagnose the specific cause of the P2123 code using a scan tool and inspection of the accelerator pedal position sensor and related components.
  2. Replace the faulty accelerator pedal position sensor if it is determined to be the cause of the issue.
  3. Check and repair any wiring harness issues or loose connections affecting sensor performance.
  4. Calibrate or reprogram the sensor as needed to ensure accurate communication with the engine control module.
  5. Clear the code from the vehicle's memory and test drive to confirm that the issue has been resolved.

Cost to Fix P2123 2005 Infiniti G35

The typical repair costs for addressing a P2123 code on a 2005 Infiniti G35 can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost may vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to contact local auto repair shops 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 P2123 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P2123 in a 2005 Infiniti G35?

The common symptoms of OBDII code P2123 in a 2005 Infiniti G35 may include issues with acceleration, reduced engine power, and the vehicle going into limp mode.

2. What causes the OBDII code P2123 in a 2005 Infiniti G35?

The OBDII code P2123 in a 2005 Infiniti G35 is typically caused by a faulty accelerator pedal position sensor or a problem within the accelerator pedal position sensor circuit.

3. How can I diagnose the OBDII code P2123 in my 2005 Infiniti G35?

Diagnosing OBDII code P2123 in a 2005 Infiniti G35 involves using an OBDII scanner to retrieve the code, checking the wiring and connections to the accelerator pedal position sensor, and testing the sensor itself for proper operation.

4. Can I drive my 2005 Infiniti G35 with OBDII code P2123?

It is not recommended to drive your 2005 Infiniti G35 with OBDII code P2123, as it can lead to unsafe driving conditions and potential damage to the vehicle. It is best to have the issue diagnosed and repaired before driving the vehicle again.

5. How can I repair OBDII code P2123 in my 2005 Infiniti G35?

Repairing OBDII code P2123 in a 2005 Infiniti G35 may involve replacing the accelerator pedal position sensor, repairing any damaged wiring or connections, or resetting the sensor calibration.

6. Is it possible to reset OBDII code P2123 in a 2005 Infiniti G35?

Resetting OBDII code P2123 in a 2005 Infiniti G35 can be done by clearing the code with an OBDII scanner after the underlying issue has been addressed and repaired.

7. What are the long-term effects of ignoring OBDII code P2123 in a 2005 Infiniti G35?

Ignoring OBDII code P2123 in a 2005 Infiniti G35 can lead to continued issues with acceleration, engine performance, and potentially cause further damage to the vehicle's components over time.

8. Can a DIY enthusiast fix OBDII code P2123 in a 2005 Infiniti G35?

A DIY enthusiast with the necessary tools, knowledge, and experience may be able to fix OBDII code P2123 in a 2005 Infiniti G35, but it is recommended to consult a professional mechanic for accurate diagnosis and repair.

9. How much does it cost to repair OBDII code P2123 in a 2005 Infiniti G35?

The cost to repair OBDII code P2123 in a 2005 Infiniti G35 can vary depending on the extent of the issue, the parts needed for repair, and the labor rates of the mechanic. It is advisable to obtain quotes from different repair shops for an accurate estimate.

10. Can extreme weather conditions trigger OBDII code P2123 in a 2005 Infiniti G35?

Extreme weather conditions can potentially affect the performance of the accelerator pedal position sensor and its circuit, leading to the triggering of OBDII code P2123 in a 2005 Infiniti G35.

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