P1226 2005 Nissan Maxima 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 2005 Nissan Maxima 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 2005 Nissan Maxima 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 2005 Nissan Maxima?
- 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 2005 Nissan Maxima?
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
Idle Air Relearn
Throttle Valve Closed Position Learning
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1226 2005 Nissan Maxima 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 2005 Nissan Maxima Code
1. What does the OBDII code P1226 mean on a 2005 Nissan Maxima?
P1226 indicates a "Closed Throttle Position Learning Performance Problem," meaning the throttle body is unable to properly learn or maintain the closed throttle position.
2. What are the common symptoms of code P1226 in a 2005 Nissan Maxima?
Symptoms may include rough idling, poor acceleration, stalling, reduced engine performance, and the check engine light turning on.
3. What causes the P1226 code on a 2005 Nissan Maxima?
Common causes include a dirty or faulty throttle body, a malfunctioning throttle position sensor (TPS), wiring issues, or a problem with the engine control module (ECM).
4. Can a dirty throttle body trigger code P1226?
Yes, a dirty or carbon-clogged throttle body can interfere with the throttle position learning process and trigger the P1226 code.
5. How can I fix code P1226 on my 2005 Nissan Maxima?
Start by cleaning the throttle body, ensuring the throttle plate moves freely, and performing a throttle position learning procedure. If the issue persists, inspect the throttle position sensor and related wiring.
6. What is the throttle position learning procedure for a 2005 Nissan Maxima?
The procedure involves turning the ignition on and off in a specific sequence, pressing the accelerator pedal, and allowing the ECM to recalibrate. Refer to the vehicle's service manual for exact steps.
7. Can I drive my 2005 Nissan Maxima with a P1226 code?
Driving with a P1226 code is possible but not recommended, as it may cause poor performance, stalling, or damage to the engine or throttle system over time.
8. Could a failing throttle position sensor cause the P1226 code?
Yes, a malfunctioning throttle position sensor can prevent the ECM from accurately learning the closed throttle position, leading to the P1226 code.
9. How much does it typically cost to repair a P1226 code on a 2005 Nissan Maxima?
Repair costs can vary, ranging from $100 to $300 for cleaning and recalibration, while replacing faulty components like the throttle body or sensor may cost $500 or more.
10. Is the P1226 code related to other throttle body issues?
Yes, it can often be related to or accompanied by other throttle body codes, such as P0507 (Idle Control System RPM Higher Than Expected) or P0123 (Throttle Position Sensor Circuit High Input).
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