P1225 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
- P1225 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 P1225 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 P1225 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 P1225 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 P1225 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 P1225 2005 Nissan Maxima Code
1. What does the OBDII code P1225 mean on a 2005 Nissan Maxima?
P1225 indicates a "Closed Throttle Position Learning Performance Problem," meaning the engine control module (ECM) is having trouble learning or recognizing the proper throttle position when the throttle is closed.
2. What are common symptoms of the P1225 code on a 2005 Nissan Maxima?
Symptoms may include poor acceleration, rough idling, engine stalling, reduced fuel efficiency, or the check engine light being illuminated.
3. What causes the P1225 code on a Nissan Maxima?
Common causes include a dirty or faulty throttle body, a malfunctioning throttle position sensor (TPS), damaged wiring or connectors, or a software issue in the ECM.
4. Can a dirty throttle body trigger the P1225 code?
Yes, a dirty throttle body can prevent the ECM from accurately detecting the closed throttle position, leading to the P1225 code.
5. How can I fix the P1225 code on my 2005 Nissan Maxima?
Start by cleaning the throttle body, inspecting the throttle position sensor and wiring for damage, and performing a throttle position relearn procedure. If the issue persists, check the ECM for faults.
6. What is the throttle position relearn procedure for a 2005 Nissan Maxima?
The relearn procedure involves turning the ignition key to specific positions and waiting for a set amount of time. Consult the vehicle service manual for the exact steps, or have a professional perform it with diagnostic equipment.
7. Can a faulty throttle position sensor cause the P1225 code?
Yes, a malfunctioning throttle position sensor can send incorrect signals to the ECM, leading to a failure in throttle position learning.
8. Is it safe to drive with the P1225 code on a 2005 Nissan Maxima?
Driving with the P1225 code may be possible but not recommended, as it can lead to engine performance issues and potential stalling, which could be unsafe.
9. How much does it cost to repair the P1225 code on a 2005 Nissan Maxima?
Repair costs vary depending on the issue. Cleaning the throttle body may cost $100-$200, while sensor replacement or wiring repairs can range from $200-$500. ECM issues may be more expensive.
10. Can resetting the ECM clear the P1225 code on a 2005 Nissan Maxima?
Resetting the ECM may temporarily clear the code, but the issue will likely return if the underlying problem is not resolved. Proper diagnosis and repair are necessary.
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