P1226 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder?
- 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 2007 Nissan Pathfinder?
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.
Code Tech Notes
Nissan Pathfinder Idle Air Volume Learning Procedure
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1226 2007 Nissan Pathfinder 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 2007 Nissan Pathfinder Code
1. What does OBDII code P1226 mean on a 2007 Nissan Pathfinder?
P1226 indicates a "Closed Throttle Position Learning Performance Problem," meaning the throttle body is not properly learning or maintaining the closed throttle position.
2. What are the common symptoms of P1226 on a 2007 Nissan Pathfinder?
Symptoms may include poor acceleration, rough idling, reduced fuel efficiency, and possibly the illumination of the check engine light.
3. What causes the P1226 code to appear?
Common causes include a dirty or malfunctioning throttle body, issues with the throttle position sensor, a damaged wiring harness, or a failed ECM (Engine Control Module).
4. Can a dirty throttle body trigger P1226?
Yes, a dirty or carbon-clogged throttle body can prevent proper throttle position learning, leading to this code.
5. How do you fix the P1226 error code on a Nissan Pathfinder?
Start by cleaning the throttle body, checking for damaged wiring or connections, and performing a throttle position relearn procedure. Replace faulty components if necessary.
6. What is the throttle position relearn procedure for the 2007 Nissan Pathfinder?
The relearn procedure involves turning the ignition on and off in a specific sequence and pressing the accelerator pedal as per the manufacturer’s guidelines. Consult the service manual for detailed steps.
7. Is it safe to drive with the P1226 code on a Nissan Pathfinder?
It’s generally not recommended, as the vehicle may experience reduced performance and potential safety issues. Address the problem promptly to avoid further complications.
8. How much does it cost to repair the P1226 code?
Repair costs vary depending on the root cause. Cleaning the throttle body is inexpensive, while replacing the throttle body or ECM can cost several hundred dollars.
9. Can a faulty throttle position sensor cause P1226?
Yes, a malfunctioning throttle position sensor can prevent the ECM from detecting the correct closed throttle position, triggering the code.
10. Will disconnecting the battery clear the P1226 code?
Disconnecting the battery may clear the code temporarily, but it won’t resolve the root cause. Proper diagnosis and repair are necessary to prevent the code from returning.
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