P1225 2004 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 2004 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 2004 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 2004 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 2004 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 2004 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 2004 Nissan Maxima Code
1. What does the OBDII code P1225 mean on a 2004 Nissan Maxima?
P1225 indicates a "Closed Throttle Position Learning Performance Problem," meaning the engine control module (ECM) is having difficulty learning or storing the throttle's idle position.
2. What are the common symptoms of code P1225 in a 2004 Nissan Maxima?
Symptoms may include rough idle, hesitation during acceleration, poor fuel efficiency, or the check engine light illuminating.
3. What causes the P1225 code to appear?
The most common causes include a dirty or faulty throttle body, a misaligned throttle position sensor (TPS), ECM issues, or wiring/connectivity problems.
4. How can I fix the P1225 code on my 2004 Nissan Maxima?
Start by cleaning the throttle body, performing a throttle position relearn procedure, and inspecting the TPS and related wiring. If the issue persists, consult a mechanic to check the ECM.
5. Can a dirty throttle body trigger the P1225 code?
Yes, a buildup of carbon deposits on the throttle body can interfere with the ECM's ability to learn the throttle's closed position.
6. How do I perform a throttle position relearn on a 2004 Nissan Maxima?
Turn the ignition to "ON" without starting the engine, wait a few seconds, then depress and release the accelerator pedal slowly several times. Refer to the service manual for exact steps.
7. Is it safe to drive with a P1225 code active?
While the vehicle may still run, driving with this code can lead to poor performance and potential damage to the throttle system or ECM if left unresolved.
8. Can a failed throttle position sensor cause the P1225 code?
Yes, a malfunctioning TPS can prevent the ECM from accurately learning the throttle's closed position, leading to the P1225 code.
9. How much does it cost to repair a P1225 code on a 2004 Nissan Maxima?
The cost varies depending on the cause. Cleaning the throttle body may cost $50-$100, while replacing the throttle position sensor or ECM can range from $200 to $1,000.
10. Will disconnecting the battery clear the P1225 code on a 2004 Nissan Maxima?
Disconnecting the battery may temporarily clear the code, but it won't fix the underlying issue. Proper diagnosis and repair are necessary to resolve the problem.
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