AutoCodes – Nissan – P1226 2009 Nissan Sentra

P1226 2009 Nissan Sentra 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 Sentra 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 2,741

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 Apr 01, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1226 2009 Nissan Sentra 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 Sentra - Closed Throttle Position Learning Performance Problem - AutoCodes.com — P1226 2009 Nissan Sentra Code - Closed Throttle Position Learning Performance Problem

What does this mean?

What are the Possible Causes of the DTC P1226 2009 Nissan Sentra?

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 Sentra?

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 Sentra 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 Sentra 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 Sentra Code

What does OBDII code P1226 mean for a 2009 Nissan Sentra?

OBDII code P1226 indicates a Closed Throttle Position Learning Performance Problem, which means the Engine Control Module (ECM) is detecting an issue with the throttle position sensor or its calibration.

What are common symptoms of the P1226 code?

Common symptoms include poor acceleration, a rough idle, reduced engine power, the check engine light being illuminated, and possible stalling.

What could cause the P1226 code to trigger?

Causes may include a faulty throttle position sensor, issues with the throttle body, wiring or connector problems, or a malfunctioning ECM.

How can I diagnose the P1226 code?

To diagnose P1226, start by checking the throttle position sensor and its connections for any damage, then inspect the throttle body for cleanliness and proper operation. A scan tool can help monitor sensor readings.

Are there any common repairs for P1226?

Common repairs include cleaning or replacing the throttle body, replacing a faulty throttle position sensor, and repairing any damaged wiring or connectors.

Can the P1226 code lead to other issues if not addressed?

Yes, if left unresolved, the P1226 code can lead to further engine performance problems, increased emissions, and potential damage to other engine components.

Is it safe to drive with the P1226 code?

While it may be safe to drive for a short time, it's not recommended, as it can lead to reduced power and control, potentially making driving unsafe.

How can I reset the P1226 code after repairs?

You can reset the P1226 code by using an OBDII scanner to clear the trouble codes, or by disconnecting the battery for a few minutes; however, ensure the underlying issue is fixed first.

What should I do if the P1226 code keeps coming back?

If the code keeps returning, further diagnosis may be necessary to check for underlying issues such as an intermittent fault in wiring, ECM problems, or issues with other related components.