Engine-Codes.com
Engine-Codes – Honda – P2138 2010 Honda Accord

P2138 2010 Honda Accord Code - Accelerator Pedal Position Sensor 1/2 Incorrect Voltage

Quick Answer

The P2138 code for a 2010 Honda Accord indicates that there is an issue with the Accelerator Pedal Position Sensor 1/2 Incorrect Voltage. Common causes include Faulty Accelerator Pedal Position Sensor, Wiring or connector issues in the sensor circuit, ECM software malfunction. 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 Honda Accord indicates Accelerator Pedal Position Sensor 1/2 Incorrect Voltage.
Common causes
Common causes include Faulty Accelerator Pedal Position Sensor, Wiring or connector issues in the sensor circuit, ECM software malfunction.
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 05, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2138 2010 Honda Accord Description

The P2138 code for a 2010 Honda Accord indicates that there is an issue with the Accelerator Pedal Position Sensor 1/2 Incorrect Voltage. This sensor is responsible for monitoring the position of the accelerator pedal and sending signals to the engine control module (ECM) to adjust the throttle accordingly. When the voltage readings from the sensors do not match expected values, the ECM detects a discrepancy and triggers this fault code. This can lead to improper throttle response, affecting the vehicle's performance and fuel efficiency.

OBDII Code P2138 2010 Honda Accord - Accelerator Pedal Position Sensor 1/2 Incorrect Voltage
P2138 2010 Honda Accord Code - Accelerator Pedal Position Sensor 1/2 Incorrect Voltage

Common Causes of P2138 2010 Honda Accord

  1. Faulty Accelerator Pedal Position Sensor.
  2. Wiring or connector issues in the sensor circuit.
  3. ECM software malfunction.
  4. Corrosion or contamination in the sensor components.
  5. Electrical problems such as a short circuit or open circuit.

Symptoms of P2138 2010 Honda Accord

  1. Reduced acceleration or lack of response when pressing the accelerator pedal.
  2. Engine stalling or rough idling.
  3. Check Engine Light illuminated on the dashboard.
  4. Decreased fuel efficiency.
  5. Difficulty maintaining a constant speed.

How to Fix P2138 2010 Honda Accord

  1. Begin by conducting a thorough inspection of the accelerator pedal sensor and its wiring for any visible damage or corrosion.
  2. Test the sensor's voltage output using a multimeter to verify if it falls within the manufacturer's specified range.
  3. If the sensor is faulty, replace it with a new one and ensure proper calibration.
  4. Check and repair any damaged wiring or connectors in the sensor circuit.
  5. Clear the fault code from the ECM's memory and perform a test drive to confirm that the issue has been resolved.

Cost to Fix P2138 2010 Honda Accord

The cost of repairing a P2138 code in a 2010 Honda Accord can vary depending on the severity of the issue and the specific parts needed. On average, the replacement of the accelerator pedal position sensor and related repairs could range from $150 to $400, including parts and labor. However, additional diagnostic fees and labor costs may apply, so it's recommended to consult with a professional mechanic for a more accurate estimate. Labor rates at auto repair shops typically range from $80 to $150 per hour, but prices may differ based on location and the type of repair facility.

Need more information about the P2138 2010 Honda Accord code?

Need more information on how to fix the P2138 2010 Honda Accord code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2138 2010 Honda Accord code diagnosed by a professional: Find a repair shop in your area

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 Honda Accord Code

1. What are the common symptoms of OBDII code P2138 in a 2010 Honda Accord?

- Common symptoms include engine stalling, reduced engine power, hesitation during acceleration, and illuminated Check Engine Light.

2. What does the OBDII code P2138 on a 2010 Honda Accord mean?

- OBDII code P2138 indicates that there is an incorrect voltage signal coming from Accelerator Pedal Position Sensor 1/2.

3. What are the possible causes of OBDII code P2138 in a 2010 Honda Accord?

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

4. How can I diagnose the issue related to OBDII code P2138 in my 2010 Honda Accord?

- You can diagnose the issue by performing a visual inspection of the sensor and its wiring, checking for loose connections, using a multimeter to test voltage signals, and scanning for any related trouble codes.

5. Can driving with OBDII code P2138 in a 2010 Honda Accord cause further damage?

- Continuing to drive with this issue can potentially cause further damage to the engine or other components. It's recommended to address the problem promptly to avoid more serious issues.

6. Is it safe to continue driving my 2010 Honda Accord with the acceleration issues related to OBDII code P2138?

- It is not recommended to drive the vehicle with acceleration issues caused by OBDII code P2138, as it can affect the drivability and safety of the car.

7. How can I repair OBDII code P2138 in my 2010 Honda Accord?

- Repairing OBDII code P2138 may involve replacing the accelerator pedal position sensor, repairing damaged wiring, cleaning the throttle body, or reprogramming the engine control module.

8. Can I reset the Check Engine Light after fixing OBDII code P2138 in my 2010 Honda Accord?

- Yes, you can reset the Check Engine Light using an OBDII scanner after fixing the underlying issue related to code P2138. This will clear the error code from the system.

9. How much does it cost to fix OBDII code P2138 in a 2010 Honda Accord at a repair shop?

- The cost of fixing OBDII code P2138 can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

10. Can I fix OBDII code P2138 in my 2010 Honda Accord by myself?

- If you have the necessary tools, knowledge, and experience, you may be able to fix OBDII code P2138 yourself. However, it's recommended to consult a professional if you're unsure about the repair process.

Discuss the causes and fixes for P2138 2010 Honda Accord OBDII Code

Submit a New Comment

Code P2138 2010 Honda Accord comments

No comments found for this page.