P1226 2012 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 2012 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.
Code P1226 2012 Nissan Altima Sedan Description
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.
What are the Possible Causes of the DTC P1226 2012 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 2012 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 2012 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.
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Frequently Asked Questions about P1226 2012 Nissan Altima Sedan Code
What does the OBDII code P1226 mean on a 2012 Nissan Altima Sedan?
Code P1226 indicates a "Closed Throttle Position Learning Performance Problem," meaning the throttle body may not be calibrated properly or has failed to learn the correct closed throttle position.
What are the common symptoms of code P1226 in a 2012 Nissan Altima?
Symptoms may include poor acceleration, rough idling, reduced fuel efficiency, stalling, or the check engine light being illuminated.
What causes the P1226 code to appear on my 2012 Nissan Altima?
Common causes include a dirty or faulty throttle body, issues with the throttle position sensor, problems with the accelerator pedal position sensor, or wiring/connectivity issues.
Can a dirty throttle body cause the P1226 code?
Yes, a dirty or carbon-clogged throttle body can prevent proper throttle position learning, leading to the P1226 code.
How can I fix the P1226 code in my 2012 Nissan Altima?
Start by cleaning the throttle body and resetting the throttle position learning procedure. If the problem persists, check the throttle position sensor, accelerator pedal sensor, and related wiring.
Does resetting the throttle position help clear the P1226 code?
Yes, performing a throttle position reset procedure may resolve the issue if no components are damaged.
Is it safe to drive a 2012 Nissan Altima with the P1226 code?
Driving with the P1226 code may be unsafe, as it can cause stalling or poor throttle response. It is best to address the issue promptly.
What tools do I need to troubleshoot the P1226 code?
A scan tool capable of reading live data and performing a throttle position reset is essential, along with basic tools for inspecting wiring and cleaning the throttle body.
Can a failing throttle position sensor cause the P1226 code?
Yes, a failing throttle position sensor can prevent the throttle body from learning the correct closed position, triggering the P1226 code.
Do I need to replace the throttle body to fix the P1226 code?
Not always. Cleaning the throttle body and performing a relearn procedure may resolve the issue. Replacement is only necessary if the throttle body is damaged or faulty.
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