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P1226 2012 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

Quick Answer

The P1226 diagnostic trouble code (DTC) for a 2012 Nissan Pathfinder indicates a Closed Throttle Position Learning Performance Problem. Common causes include Faulty throttle position sensor (TPS), Dirty or clogged throttle body, Wiring or connector issues in the TPS circuit. 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 2012 Nissan Pathfinder indicates Closed Throttle Position Learning Performance Problem.
Common causes
Common causes include Faulty throttle position sensor (TPS), Dirty or clogged throttle body, Wiring or connector issues in the TPS circuit.
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 13, 2024
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Code P1226 2012 Nissan Pathfinder Description

The P1226 diagnostic trouble code (DTC) for a 2012 Nissan Pathfinder indicates a Closed Throttle Position Learning Performance Problem. This code is related to the throttle position sensor (TPS) and the vehicle's electronic control system. The TPS is responsible for monitoring the position of the throttle valve, which controls the amount of air entering the engine. The closed throttle position refers to when the throttle valve is fully closed, such as when the vehicle is idling or decelerating.

OBDII Code P1226 2012 Nissan Pathfinder - Closed Throttle Position Learning Performance Problem
P1226 2012 Nissan Pathfinder Code - Closed Throttle Position Learning Performance Problem

Common Causes of P1226 2012 Nissan Pathfinder

  1. Faulty throttle position sensor (TPS).
  2. Dirty or clogged throttle body.
  3. Wiring or connector issues in the TPS circuit.
  4. Electronic control module (ECM) malfunction.
  5. Vacuum leaks in the intake system.

Symptoms of P1226 2012 Nissan Pathfinder

  1. Rough idling or stalling when the vehicle is at a standstill.
  2. Reduced engine power and sluggish acceleration.
  3. Difficulty maintaining a consistent speed while driving.
  4. Increased fuel consumption.
  5. Check engine light illuminated on the dashboard.

How to Fix P1226 2012 Nissan Pathfinder

  1. Begin by conducting a thorough inspection of the throttle position sensor and its wiring connections.
  2. Clean the throttle body to remove any dirt or carbon buildup that may be affecting its operation.
  3. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications.
  4. Check for any vacuum leaks in the intake system and repair as necessary.
  5. If the issue persists, consider reprogramming or replacing the electronic control module (ECM) to address the closed throttle position learning problem.

Cost to Fix P1226 2012 Nissan Pathfinder

The typical repair costs for addressing a P1226 code on a 2012 Nissan Pathfinder can vary depending on the specific cause of the issue. In general, the cost of parts such as a new throttle position sensor or electronic control module can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, with the total repair time varying based on the complexity of the issue. Overall, the total repair cost for resolving a closed throttle position learning performance problem may range from $200 to $800 or more, depending on the specific repairs needed. It is advisable to consult with a qualified mechanic or dealership for a more accurate cost estimate based on the individual circumstances of the vehicle.

What does this mean?

Tech Notes for P1226 2012 Nissan Pathfinder

If there are no intake leaks, clean throttle body, adjust engine idle and erase engine code. If the code comes back you may have to replace the Electric Throttle Control Actuator (Motor) to fix the problem.



Nissan Pathfinder Idle Air Volume Learning Procedure

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 2012 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P1226 in a 2012 Nissan Pathfinder?

The common symptoms of OBDII code P1226 in a 2012 Nissan Pathfinder include rough idling, reduced engine power, and potentially stalling.

2. What does the OBDII code P1226 Closed Throttle Position Learning Performance Problem indicate?

The code P1226 suggests that there is an issue with the closed throttle position learning function in the engine control module of the 2012 Nissan Pathfinder.

3. What are the possible causes of OBDII code P1226 in a 2012 Nissan Pathfinder?

Possible causes of code P1226 in a 2012 Nissan Pathfinder include a faulty throttle position sensor, wiring issues, a vacuum leak, or a malfunctioning throttle body.

4. How can I diagnose the OBDII code P1226 Closed Throttle Position Learning Performance Problem in my 2012 Nissan Pathfinder?

To diagnose code P1226 in a 2012 Nissan Pathfinder, you can start by checking the throttle position sensor for proper operation, inspecting the wiring for any damage, and ensuring there are no vacuum leaks in the system.

5. Can I drive my 2012 Nissan Pathfinder with OBDII code P1226?

It is not recommended to drive your 2012 Nissan Pathfinder with OBDII code P1226, as it can lead to poor engine performance, potential stalling, and further damage to the vehicle.

6. How can I repair OBDII code P1226 in my 2012 Nissan Pathfinder?

Repairing OBDII code P1226 in a 2012 Nissan Pathfinder typically involves replacing the faulty throttle position sensor, addressing any wiring issues, fixing vacuum leaks, or cleaning/replacing the throttle body.

7. Is it safe to continue driving my 2012 Nissan Pathfinder if the OBDII code P1226 comes up intermittently?

It is not recommended to drive your 2012 Nissan Pathfinder if OBDII code P1226 comes up intermittently, as it indicates an underlying issue that can worsen over time.

8. How much does it cost to fix OBDII code P1226 in a 2012 Nissan Pathfinder?

The cost to fix OBDII code P1226 in a 2012 Nissan Pathfinder can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can resetting the OBDII system clear the P1226 code in a 2012 Nissan Pathfinder?

Resetting the OBDII system may temporarily clear the P1226 code in a 2012 Nissan Pathfinder, but if the underlying issue is not addressed, the code is likely to reappear.

10. How urgent is it to address OBDII code P1226 in a 2012 Nissan Pathfinder?

It is important to address OBDII code P1226 in a 2012 Nissan Pathfinder promptly to prevent further damage to the engine, ensure proper performance, and maintain the safety of the vehicle.

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