AutoCodes – Infiniti – P1225 2005 Infiniti G35

P1225 2005 Infiniti G35 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 Infiniti G35 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.

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Code Popularity 5,849

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1225 2005 Infiniti G35 Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. The Throttle Position (TP) sensor responds to the throttle valve movement.
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.

OBDII Code P1225 2005 Infiniti G35 - Closed Throttle Position Learning Performance Problem - AutoCodes.com — P1225 2005 Infiniti G35 Code - Closed Throttle Position Learning Performance Problem

What does this mean?

What are the Possible Causes of the DTC P1225 2005 Infiniti G35?

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 Infiniti G35?

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 P1225 2005 Infiniti G35 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 P1225 2005 Infiniti G35 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1225 2005 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1225 in a 2005 Infiniti G35?

The common symptoms of OBDII code P1225 in a 2005 Infiniti G35 include rough idling, stalling, poor acceleration, and the vehicle's engine may struggle to maintain a consistent idle speed.

2. What causes the Closed Throttle Position Learning Performance Problem in a 2005 Infiniti G35?

The Closed Throttle Position Learning Performance Problem in a 2005 Infiniti G35 is typically caused by issues with the throttle position sensor, throttle body, or wiring/connectivity problems.

3. How can I diagnose the cause of OBDII code P1225 in my 2005 Infiniti G35?

To diagnose the cause of OBDII code P1225 in a 2005 Infiniti G35, you can start by checking the throttle position sensor for proper operation, inspecting the throttle body for any signs of damage or buildup, and ensuring all wiring connections are secure and free of corrosion.

4. Can I drive my 2005 Infiniti G35 with OBDII code P1225?

It is not recommended to drive your 2005 Infiniti G35 with OBDII code P1225, as the issue can affect the vehicle's performance and may lead to further damage if left unresolved.

5. How do I repair the Closed Throttle Position Learning Performance Problem in my 2005 Infiniti G35?

To repair the Closed Throttle Position Learning Performance Problem in a 2005 Infiniti G35, you may need to replace the throttle position sensor, clean the throttle body, or repair any faulty wiring connections. It is advisable to consult a professional mechanic for a thorough diagnosis and repair.

6. Can a dirty throttle body cause OBDII code P1225 in a 2005 Infiniti G35?

Yes, a dirty throttle body can cause OBDII code P1225 in a 2005 Infiniti G35 as it can affect the throttle position sensor's readings and lead to performance issues.

7. What is the significance of the Closed Throttle Position Learning in a 2005 Infiniti G35?

The Closed Throttle Position Learning is a calibration process that helps the vehicle's engine control module (ECM) optimize idle speed and throttle response based on the throttle position sensor's input. A performance problem in this learning process can impact the vehicle's overall performance.

8. How long does it take to repair OBDII code P1225 in a 2005 Infiniti G35?

The repair time for OBDII code P1225 in a 2005 Infiniti G35 can vary depending on the exact cause of the issue. Simple fixes like cleaning the throttle body may take less than an hour, while more complex repairs involving sensor replacement or wiring repairs may take longer.

9. Can resetting the ECM clear OBDII code P1225 in a 2005 Infiniti G35?

Resetting the ECM may temporarily clear OBDII code P1225 in a 2005 Infiniti G35, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent future occurrences.

10. Is it safe to ignore OBDII code P1225 in a 2005 Infiniti G35?

Ignoring OBDII code P1225 in a 2005 Infiniti G35 is not recommended, as it can lead to decreased performance, poor fuel efficiency, and potential engine damage over time. It is best to address the issue promptly to ensure the vehicle operates smoothly.