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Engine-Codes – Nissan – P2138 2010 Nissan Sentra

P2138 2010 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The P2138 diagnostic trouble code (DTC) for a 2010 Nissan Sentra relates 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, Corrosion or poor connections in the electrical system. 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 2010 Nissan Sentra 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 electrical system.
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 14, 2024
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Code P2138 2010 Nissan Sentra Description

The P2138 diagnostic trouble code (DTC) for a 2010 Nissan Sentra relates to the Accelerator Pedal Position Sensor Circuit Range/Performance. This code indicates that there is an issue with the communication between the accelerator pedal position sensor and the engine control module (ECM). The accelerator pedal position sensor is responsible for sending signals to the ECM to determine how much fuel and air should be delivered to the engine based on the driver's input. When the ECM receives conflicting or out-of-range signals from the sensor, it triggers the P2138 code.

OBDII Code P2138 2010 Nissan Sentra - Accelerator Pedal Position Sensor Circuit Range/Performance
P2138 2010 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Common Causes of P2138 2010 Nissan Sentra

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or poor connections in the electrical system
  4. Malfunctioning ECM
  5. Water or debris intrusion in the sensor or wiring

Symptoms of P2138 2010 Nissan Sentra

  1. Reduced engine power
  2. Hesitation or jerking during acceleration
  3. Stalling or difficulty starting the engine
  4. Check Engine Light illuminated
  5. Limited throttle response

How to Fix P2138 2010 Nissan Sentra

  1. Diagnose the issue using a scan tool to confirm the P2138 code and pinpoint the exact 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.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2138 2010 Nissan Sentra

The typical repair costs for addressing a P2138 code on a 2010 Nissan Sentra can range from $200 to $500, including parts and labor. However, it is essential to note that the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships. Independent shops often offer lower labor rates. To obtain a more accurate estimate, it is recommended to inquire about local rates 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 2010 Nissan Sentra Code

1. What are the common symptoms of OBDII code P2138 in a 2010 Nissan Sentra?

- 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 in a 2010 Nissan Sentra indicate?

- The code P2138 indicates an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance.

3. What are the possible causes of OBDII code P2138 in a 2010 Nissan Sentra?

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

4. How can I diagnose the OBDII code P2138 in my 2010 Nissan Sentra?

- Diagnosing the code may involve using a scan tool to check for related codes, testing the accelerator pedal position sensor with a multimeter, and inspecting the throttle body and wiring for any visible damage.

5. Can I continue driving my 2010 Nissan Sentra with OBDII code P2138?

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

6. How can I repair OBDII code P2138 in a 2010 Nissan Sentra?

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

7. Is it common for the accelerator pedal position sensor to fail in a 2010 Nissan Sentra?

- While it may not be extremely common, the accelerator pedal position sensor can fail due to wear and tear over time, leading to issues like code P2138.

8. Can a DIY enthusiast fix OBDII code P2138 in a 2010 Nissan Sentra?

- Depending on the level of expertise, a DIY enthusiast may be able to diagnose and repair code P2138 by following step-by-step guides and using the necessary tools.

9. How much does it cost to repair OBDII code P2138 in a 2010 Nissan Sentra at a mechanic?

- The cost of repairing code P2138 can vary depending on the exact cause of the issue, but it may range from $200 to $500 or more at a mechanic's shop.

10. Will resetting the check engine light resolve OBDII code P2138 in a 2010 Nissan Sentra?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing code P2138. It is important to diagnose and repair the problem to prevent it from recurring.

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