AutoCodes – Nissan – P1226 2009 Nissan Altima Sedan

P1226 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan 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 2,097
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 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan - Closed Throttle Position Learning Performance Problem - AutoCodes.com
P1226 2009 Nissan Altima Sedan Code - Closed Throttle Position Learning Performance Problem

What are the Possible Causes of the DTC P1226 2009 Nissan Altima Sedan?

  • 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 2009 Nissan Altima Sedan?

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 P1226 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan 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 2009 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P1226 in a 2009 Nissan Altima Sedan?

- Common symptoms include rough idling, poor acceleration, reduced fuel efficiency, and potential stalling of the vehicle.

2. What does the OBDII code P1226 on a 2009 Nissan Altima Sedan indicate?

- The code points to a Closed Throttle Position Learning Performance Problem, suggesting an issue with the throttle position sensor or related components.

3. What are the possible causes of the Closed Throttle Position Learning Performance Problem in a 2009 Nissan Altima Sedan?

- Causes may include a faulty throttle position sensor, wiring issues, vacuum leaks, throttle body problems, or issues with the electronic throttle control system.

4. How can I diagnose the OBDII code P1226 on a 2009 Nissan Altima Sedan?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the throttle position sensor and related components, checking for vacuum leaks, and conducting a thorough visual inspection.

5. Can I drive my 2009 Nissan Altima Sedan with the OBDII code P1226 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potential safety concerns. It's best to address the underlying problem promptly.

6. How can I repair the Closed Throttle Position Learning Performance Problem in my 2009 Nissan Altima Sedan?

- Repair options may include replacing the throttle position sensor, repairing wiring issues, fixing vacuum leaks, cleaning the throttle body, or recalibrating the electronic throttle control system.

7. Is it possible to reset the OBDII code P1226 in a 2009 Nissan Altima Sedan without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring and ensure proper vehicle operation.

8. How much does it typically cost to repair the OBDII code P1226 issue in a 2009 Nissan Altima Sedan?

- Repair costs can vary depending on the exact cause of the problem, but replacing a throttle position sensor or fixing wiring issues may range from $100 to $300, excluding labor costs.

9. Can a DIY enthusiast fix the Closed Throttle Position Learning Performance Problem in a 2009 Nissan Altima Sedan?

- Depending on the specific issue, some DIY enthusiasts with automotive repair experience may be able to address the problem themselves, especially for tasks like sensor replacement or basic inspections.

10. How long can I safely drive my 2009 Nissan Altima Sedan with the OBDII code P1226 before getting it repaired?

- It is recommended to address the issue as soon as possible to prevent further damage to the vehicle and ensure safe driving conditions.

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