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P1226 2009 Nissan Rogue Code - Closed Throttle Position Learning Performance Problem

Quick Answer

The P1226 diagnostic trouble code in a 2009 Nissan Rogue indicates a Closed Throttle Position Learning Performance Problem. Common causes include Faulty throttle position sensor, Wiring or connector issues in the throttle position sensor circuit, Vacuum leaks in the intake 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
P1226 2009 Nissan Rogue indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the throttle position sensor circuit, Vacuum leaks in the intake 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 10, 2024
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Code P1226 2009 Nissan Rogue Description

The P1226 diagnostic trouble code in a 2009 Nissan Rogue indicates a Closed Throttle Position Learning Performance Problem. This code typically means that there is an issue with the vehicle's ability to accurately determine the position of the throttle when it is in the closed position. The throttle position sensor (TPS) is responsible for sending signals to the engine control module (ECM) to adjust the air-fuel mixture for optimal performance. When the ECM detects that the closed throttle position learning is not within the expected parameters, it triggers the P1226 code.

OBDII Code P1226 2009 Nissan Rogue - Closed Throttle Position Learning Performance Problem
P1226 2009 Nissan Rogue Code - Closed Throttle Position Learning Performance Problem

Common Causes of P1226 2009 Nissan Rogue

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the throttle position sensor circuit
  3. Vacuum leaks in the intake system
  4. ECM software malfunction
  5. Mechanical issues with the throttle body

Symptoms of P1226 2009 Nissan Rogue

  1. Rough idling or unstable engine rpm
  2. Poor acceleration or hesitation when pressing the gas pedal
  3. Stalling or difficulty starting the engine
  4. Reduced fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P1226 2009 Nissan Rogue

  1. Begin by diagnosing the issue with a scan tool to confirm the P1226 code and identify the specific cause of the problem.
  2. Inspect the throttle position sensor and its wiring for any signs of damage or wear. Replace the sensor if necessary.
  3. Check for vacuum leaks in the intake system and repair them accordingly.
  4. Reset the closed throttle position learning by following the manufacturer's recommended procedure.
  5. If the issue persists, consider reprogramming or replacing the ECM to address any software or hardware malfunctions.

Cost to Fix P1226 2009 Nissan Rogue

The typical repair costs for addressing a Closed Throttle Position Learning Performance Problem can range from $200 to $500, including parts and labor. However, 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. It is advisable to check local rates for a more precise estimate before proceeding with the repair.

What does this mean?

Tech Notes for P1226 2009 Nissan Rogue

Start by cleaning the throttle and adjust engine idle and erase engine code. If the code comes back you may have to replace the Electric Throttle Control Actuator (Motor) to repair the problem.



Nissan Rogue Idle Air Volume Relearn

When is the Code Detected?

Closed throttle position learning is not performed successfully, repeatedly.

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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 2009 Nissan Rogue Code

1. What does the OBDII code P1226 mean on a 2009 Nissan Rogue?

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

2. What are the common symptoms of code P1226 in a 2009 Nissan Rogue?

Symptoms may include poor acceleration, rough idling, stalling, reduced fuel efficiency, or the throttle not responding properly to pedal input.

3. What causes the P1226 code on a Nissan Rogue?

Common causes include a dirty or faulty throttle body, a bad throttle position sensor, a malfunctioning accelerator pedal position sensor, or wiring issues like damaged connectors or circuits.

4. How can I fix the P1226 code in my 2009 Nissan Rogue?

Start by cleaning the throttle body, inspecting the throttle position sensor and wiring, and performing a throttle position relearn procedure. Replace faulty components if necessary.

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

Throttle position relearn resets the ECM's memory of the throttle body's closed position. It's crucial to ensure the ECM can properly control the throttle for optimal engine performance.

6. Can a dirty throttle body cause the P1226 code?

Yes, a dirty throttle body can prevent the throttle plate from closing completely, disrupting the ECM's ability to learn the closed position and triggering the code.

7. Is it safe to drive with the P1226 code active?

Driving with P1226 may be unsafe, as throttle response issues can lead to unpredictable acceleration or stalling, especially in traffic.

8. Do I need to replace the throttle body to fix code P1226?

Not necessarily. Often, cleaning the throttle body and performing a relearn procedure can resolve the issue. Only replace the throttle body if it's confirmed to be defective.

9. How much does it cost to repair a P1226 code on a 2009 Nissan Rogue?

Costs vary, but cleaning the throttle body and performing a relearn procedure may cost $100–$200 at a shop. Replacing the throttle body could cost $300–$600, including parts and labor.

10. Can a faulty accelerator pedal position sensor trigger the P1226 code?

Yes, if the accelerator pedal position sensor isn’t functioning properly, it can send incorrect signals to the ECM, contributing to the P1226 code.

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