AutoCodesNissan – P1226 2010 Nissan Pathfinder

P1226 2010 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

Quick Answer

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. Common causes include Faulty Electric throttle control actuator (TP sensor 2), Electric throttle control actuator (TP sensor 2) harness is open or shorted, Electric throttle control actuator (TP sensor 2) 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
P1226 2010 Nissan Pathfinder indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty Electric throttle control actuator (TP sensor 2), Electric throttle control actuator (TP sensor 2) harness is open or shorted, Electric throttle control actuator (TP sensor 2) 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 2,461
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2019
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Code P1226 2010 Nissan Pathfinder Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. The Throttle Position (TP) sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
OBDII Code P1226 2010 Nissan Pathfinder - Closed Throttle Position Learning Performance Problem - AutoCodes.com
P1226 2010 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

What are the Possible Causes of the DTC P1226 2010 Nissan Pathfinder?

  • Faulty Electric throttle control actuator (TP sensor 2)
  • Electric throttle control actuator (TP sensor 2) harness is open or shorted
  • Electric throttle control actuator (TP sensor 2) circuit poor electrical connection

How to Fix the DTC P1226 2010 Nissan Pathfinder?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1226 2010 Nissan Pathfinder 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 P1226 2010 Nissan Pathfinder 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 P1226 2010 Nissan Pathfinder Code

1. What does the OBDII code P1226 mean on a 2010 Nissan Pathfinder?

P1226 indicates a "Closed Throttle Position Learning Performance Problem," meaning the engine control module (ECM) is having trouble learning or detecting the proper throttle position when the throttle is closed.

2. What are the common symptoms of code P1226 on a 2010 Nissan Pathfinder?

Symptoms may include irregular idling, reduced engine performance, poor throttle response, and the check engine light turning on.

3. What causes the P1226 code in a 2010 Nissan Pathfinder?

Common causes include a dirty or faulty throttle body, a malfunctioning throttle position sensor, wiring issues, or a failed ECM.

4. Can a dirty throttle body trigger the P1226 code?

Yes, a dirty or carbon-clogged throttle body can prevent the ECM from accurately detecting the closed throttle position, triggering the code.

5. How can I fix the P1226 code on my 2010 Nissan Pathfinder?

Cleaning the throttle body, checking for damaged wiring or connectors, and performing a throttle position relearn procedure are common fixes. If the issue persists, the throttle position sensor or ECM may need replacement.

6. What is a throttle position relearn procedure, and why is it important for resolving P1226?

A throttle position relearn procedure allows the ECM to properly calibrate the closed throttle position. This is essential after cleaning the throttle body or replacing related components.

7. Can I drive my 2010 Nissan Pathfinder with the P1226 code?

Driving with the P1226 code is possible but not recommended, as it may lead to poor performance, reduced fuel efficiency, or further damage to the throttle system.

8. How much does it cost to repair the P1226 code on a 2010 Nissan Pathfinder?

Repair costs can vary, but cleaning the throttle body typically costs $100–$200, while replacing a throttle position sensor or ECM may cost $300–$1,000 depending on parts and labor.

9. Can a dead battery cause the P1226 code to appear?

A dead or weak battery can sometimes reset the ECM, requiring the throttle position relearn procedure to be performed, which may lead to the P1226 code if not completed.

10. What tools are needed to diagnose the P1226 code?

A diagnostic scanner, a multimeter for testing electrical connections, and basic tools for throttle body cleaning or sensor replacement are typically required.

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