AutoCodes – Honda – P2138 2010 Honda Accord

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

Quick Answer

When the accelerator pedal is pressed, the Engine Control Module (ECM) opens the throttle valve depending on the Accelerator Pedal Position (APP) sensor signal. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection. 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, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit poor electrical connection.
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.

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Code Popularity 4,538

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2138 2010 Honda Accord Description

When the accelerator pedal is pressed, the Engine Control Module (ECM) opens the throttle valve depending on the Accelerator Pedal Position (APP) sensor signal. As the accelerator pedal position changes, the sensor varies the signal voltage to the ECM.

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

What does this mean?

What are the Possible Causes of the DTC P2138 2010 Honda Accord?

Faulty Accelerator Pedal Position Sensor
Accelerator Pedal Position Sensor harness is open or shorted
Accelerator Pedal Position Sensor circuit poor electrical connection
Faulty Electric Throttle Control Actuator

How to Fix the DTC P2138 2010 Honda Accord?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2138 2010 Honda Accord code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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?

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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 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.