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Engine-Codes – Nissan – P2138 2006 Nissan Maxima

P2138 2006 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2138 diagnostic trouble code (DTC) for a 2006 Nissan Maxima refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. Common causes include Faulty accelerator pedal position sensor, Wiring issues or poor connections in the accelerator pedal position sensor circuit, ECM software or hardware 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
P2138 2006 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring issues or poor connections in the accelerator pedal position sensor circuit, ECM software or hardware 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 15, 2024
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Code P2138 2006 Nissan Maxima Description

The P2138 diagnostic trouble code (DTC) for a 2006 Nissan Maxima refers to the Accelerator Pedal Position Sensor Circuit Range/Performance. This code indicates that there is an issue with the accelerator pedal position sensor circuit, specifically related to its range or performance. The accelerator pedal position sensor is a crucial component of the vehicle's electronic throttle control system, responsible for sending signals to the engine control module (ECM) to adjust the throttle position based on the driver's input.

OBDII Code P2138 2006 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance
P2138 2006 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2138 2006 Nissan Maxima

  1. Faulty accelerator pedal position sensor
  2. Wiring issues or poor connections in the accelerator pedal position sensor circuit
  3. ECM software or hardware problems
  4. Throttle body issues
  5. Electronic throttle control system malfunction

Symptoms of P2138 2006 Nissan Maxima

  1. Reduced engine power
  2. Difficulty accelerating
  3. Engine hesitation or surging
  4. Illuminated Check Engine Light
  5. Rough idling or stalling

How to Fix P2138 2006 Nissan Maxima

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspect the accelerator pedal position sensor circuit for any visible damage or loose connections.
  2. Test the accelerator pedal position sensor using a multimeter to check for proper voltage and resistance values.
  3. Replace the accelerator pedal position sensor if it is found to be faulty, ensuring proper installation and calibration.
  4. Check and repair any damaged wiring or connections in the accelerator pedal position sensor circuit.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P2138 2006 Nissan Maxima

The typical repair costs for addressing a P2138 code on a 2006 Nissan Maxima can range from $200 to $500, 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. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate 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 P2138 2006 Nissan Maxima Code

1. What are the common symptoms of OBDII code P2138 in a 2006 Nissan Maxima?

- Common symptoms include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into limp mode.

2. What does the OBDII code P2138 indicate in a 2006 Nissan Maxima?

- The code P2138 indicates a malfunction in the accelerator pedal position sensor circuit, specifically related to range/performance issues.

3. What are some possible causes of OBDII code P2138 in a 2006 Nissan Maxima?

- Possible causes include a faulty accelerator pedal position sensor, issues with the throttle body, wiring or connector problems, or a malfunctioning electronic control module (ECM).

4. How can I diagnose the OBDII code P2138 in my 2006 Nissan Maxima?

- Diagnosing the code may involve using a scan tool to retrieve the trouble codes and checking the accelerator pedal position sensor, throttle body, wiring connections, and ECM for any faults.

5. Can I still drive my 2006 Nissan Maxima with the OBDII code P2138 present?

- It is not recommended to drive the vehicle with the code P2138 present, as it can lead to unsafe driving conditions and potential further damage to the vehicle.

6. How can I repair OBDII code P2138 in my 2006 Nissan Maxima?

- Repairing the code may involve replacing the faulty accelerator pedal position sensor, repairing or replacing wiring or connectors, cleaning the throttle body, or reprogramming the ECM.

7. Is it possible to reset the OBDII code P2138 in a 2006 Nissan Maxima without fixing the underlying issue?

- While you can clear the code with a scan tool, it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to fix OBDII code P2138 in a 2006 Nissan Maxima?

- The cost of fixing the code can vary depending on the specific cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can a DIY enthusiast repair OBDII code P2138 in a 2006 Nissan Maxima?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to address some causes of the code, such as replacing the accelerator pedal position sensor or checking wiring connections.

10. How long does it usually take to repair OBDII code P2138 in a 2006 Nissan Maxima?

- The repair time can vary based on the specific cause and the expertise of the mechanic, but it may take a few hours to a full day to diagnose and fix the issue.

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