P1226 2011 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 2011 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 2011 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 2011 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 2011 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 2011 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 2011 Nissan Altima Sedan code?
Need more information on how to fix the P1226 2011 Nissan Altima Sedan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1226 2011 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1226 2011 Nissan Altima Sedan Code
1. What does the OBDII code P1226 mean on a 2011 Nissan Altima Sedan?
P1226 indicates a "Closed Throttle Position Learning Performance Problem," meaning the engine control module (ECM) is unable to properly learn the throttle's closed position.
2. What are the common symptoms of code P1226 in a 2011 Nissan Altima Sedan?
Symptoms include rough idling, poor acceleration, reduced fuel efficiency, and the check engine light being illuminated.
3. What causes the P1226 code to appear?
Potential causes include a dirty or faulty throttle body, a malfunctioning throttle position sensor, wiring issues, or a disrupted throttle position learning process.
4. How do I fix the P1226 code on my 2011 Nissan Altima Sedan?
Cleaning the throttle body, checking wiring and connectors, performing a throttle position relearn, or replacing a faulty throttle position sensor may resolve the issue.
5. Can a dirty throttle body trigger the P1226 code?
Yes, carbon buildup on the throttle body can disrupt the closed throttle position and trigger the P1226 code.
6. What is the throttle position learning process for a 2011 Nissan Altima Sedan?
The throttle position learning process involves resetting and teaching the ECM the correct closed throttle position, which may require a scan tool or following specific steps from the service manual.
7. Is it safe to drive with the P1226 code?
Driving with the P1226 code may lead to poor performance and increased emissions, but it generally won’t cause immediate damage. However, it’s best to address the issue promptly.
8. Do I need to replace the throttle body to fix the P1226 code?
Not necessarily. Start by cleaning the throttle body and performing a relearn procedure. Replace the throttle body only if it is confirmed to be faulty.
9. Can a faulty accelerator pedal position sensor cause the P1226 code?
While rare, a faulty accelerator pedal position sensor can sometimes contribute to a P1226 code if it disrupts throttle position signals.
10. How much does it cost to repair a P1226 code on a 2011 Nissan Altima?
Repair costs vary depending on the cause. Cleaning the throttle body is inexpensive, while replacing parts like the throttle body or sensors can cost $200–$600, including labor.
Discuss the causes and fixes for P1226 2011 Nissan Altima Sedan OBDII Code
Code P1226 2011 Nissan Altima Sedan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
