P1128 Nissan:Throttle Control Motor Circuit Short
If you own a Nissan and have encountered the P1128 code, you may be wondering . This code indicates a problem with the throttle control motor circuit, which can cause issues with acceleration and overall performance. Fortunately, there are several steps you can take to diagnose and repair the issue, whether you choose to tackle it yourself or take it to a professional mechanic. In this article, we’ll explore the P1128 code in more detail and provide some tips for resolving the problem.Most models of Nissan cars will work with the fixes we will discuss for the P1128 code. This includes popular models such as the Nissan Altima, Maxima, Sentra, Rogue, and Pathfinder. The fixes we will discuss are applicable to both older and newer models of Nissan cars. With proper diagnosis and repair, the P1128 code can be resolved and the car can run smoothly again.
Key Takeaways:
Meaning: P1128 code in Nissan indicates a short circuit in the throttle control motor circuit.
Causes: The code can be caused by a faulty throttle control motor, damaged wiring, or a malfunctioning throttle position sensor.
Symptoms: Symptoms of P1128 code include reduced engine power, poor acceleration, and the Check Engine Light turning on.
Fixes: Fixing P1128 code involves replacing the faulty throttle control motor, repairing damaged wiring, or replacing the throttle position sensor.
P1128 Code Nissan:
The P1128 code in a Nissan vehicle indicates a problem with the throttle control motor circuit. This means that the engine control module (ECM) has detected a short circuit in the circuit that controls the throttle motor. This can cause a variety of issues, including poor acceleration, stalling, and difficulty starting the engine. It is important to address this issue promptly to prevent further damage to the vehicle.
To fix the P1128 code, the first step is to inspect the wiring and connections in the throttle control motor circuit. If any damage or corrosion is found, the affected parts should be repaired or replaced. If the wiring and connections are in good condition, the throttle control motor itself may be faulty and need to be replaced. It is recommended to have a professional mechanic diagnose and repair this issue to ensure proper and safe repairs are made.
Signs and Symptoms of P1128 Code Nissan
The P1128 code in Nissan vehicles is related to the throttle control motor circuit short. This code is usually triggered when there is a problem with the throttle control motor or its circuit. Here are some of the signs and symptoms that you may experience if your Nissan vehicle has a P1128 code:
- Check Engine Light: The most common symptom of the P1128 code is the illumination of the check engine light on the dashboard. This light indicates that there is a problem with the engine or its components.
- Reduced Engine Power: Another symptom of the P1128 code is reduced engine power. You may notice that your Nissan vehicle is not accelerating as it should or that it is struggling to maintain speed.
- Stalling: If the problem with the throttle control motor or its circuit is severe, your Nissan vehicle may stall while driving. This can be dangerous, especially if you are driving at high speeds.
- Difficulty Starting: In some cases, the P1128 code can cause difficulty starting the engine. You may notice that the engine cranks but does not start or that it takes longer than usual to start.
- Poor Fuel Economy: If the throttle control motor is not functioning properly, it can affect the fuel economy of your Nissan vehicle. You may notice that you are getting fewer miles per gallon than usual.
If you experience any of these symptoms, it is important to have your Nissan vehicle diagnosed by a qualified mechanic. Ignoring the P1128 code can lead to further damage to your engine and other components, which can be costly to repair.
Possible Causes of P1128 Code in Nissan
The P1128 code in Nissan indicates a problem with the throttle control motor circuit short. This code is usually triggered when the Engine Control Module (ECM) detects a short circuit in the throttle control motor circuit. Here are some of the possible causes of the P1128 code:
- Failed Throttle Control Motor: The throttle control motor is responsible for controlling the throttle valve’s opening and closing. If the motor fails, it can cause a short circuit in the circuit, triggering the P1128 code.
- Short Circuit: A short circuit in the throttle control motor circuit can cause the P1128 code. This can be caused by damaged wiring, loose connections, or a faulty ECM.
- Failed Throttle Position Sensor: The throttle position sensor (TPS) is responsible for sending signals to the ECM about the throttle valve’s position. If the TPS fails, it can cause the ECM to detect a short circuit in the throttle control motor circuit, triggering the P1128 code.
- Failed ECM: The ECM is responsible for controlling the throttle control motor. If the ECM fails, it can cause a short circuit in the circuit, triggering the P1128 code.
- Corroded Connectors: Corroded connectors can cause a poor connection between the throttle control motor and the ECM, leading to a short circuit and triggering the P1128 code.
- Failed Accelerator Pedal Position Sensor: The accelerator pedal position sensor (APP) is responsible for sending signals to the ECM about the accelerator pedal’s position. If the APP sensor fails, it can cause the ECM to detect a short circuit in the throttle control motor circuit, triggering the P1128 code.
In conclusion, the P1128 code in Nissan can be caused by various factors, including a failed throttle control motor, short circuit, failed TPS, failed ECM, corroded connectors, and failed APP sensor. It is essential to diagnose the root cause of the problem to fix it effectively. Therefore, it is recommended to take your vehicle to a certified mechanic to diagnose and fix the issue.
Fixes for P1128 Code Nissan
The P1128 code in Nissan vehicles indicates a problem with the throttle control motor circuit short. This code can cause various issues with the vehicle’s performance, including reduced power and acceleration. Here are some fixes for the P1128 code:
- Check the throttle control motor circuit: The first step in fixing the P1128 code is to check the throttle control motor circuit for any shorts or open circuits. This can be done using a multimeter to test the resistance of the circuit. If any issues are found, the circuit should be repaired or replaced.
- Inspect the throttle body: The throttle body may also be causing the P1128 code. Inspect the throttle body for any signs of damage or wear, and clean it thoroughly. If the throttle body is damaged, it may need to be replaced.
- Check the wiring harness: The wiring harness that connects the throttle control motor to the engine control module may also be causing the P1128 code. Inspect the wiring harness for any damage or wear, and repair or replace any damaged wires.
- Replace the throttle control motor: If all other components are functioning properly, the throttle control motor may need to be replaced. This component is responsible for controlling the throttle plate, and a malfunctioning motor can cause the P1128 code.
- Reset the engine control module: After any repairs or replacements are made, the engine control module should be reset to clear the P1128 code. This can be done using a diagnostic tool or by disconnecting the battery for a few minutes.
It is important to address the P1128 code as soon as possible to prevent further damage to the vehicle and ensure optimal performance. If you are unsure about any of these fixes, it is recommended to seek the assistance of a professional mechanic.
How Much Will It Cost to Fix P1128 Code in Nissan?
If you own a Nissan and have encountered the P1128 code, you might be wondering how much it will cost to fix it. The P1128 code indicates a problem with the throttle control motor circuit short, which can cause issues with the engine’s performance and fuel efficiency.
The cost of fixing the P1128 code in a Nissan can vary depending on the severity of the issue and the type of repair needed. In some cases, the problem may be resolved by simply cleaning the throttle body or replacing a faulty sensor, which can cost around $100 to $200.
However, if the issue is more severe and requires replacing the entire throttle control motor or other components, the cost can range from $500 to $1000 or more. It’s important to have the issue diagnosed by a qualified mechanic to determine the exact cause and the most cost-effective solution.
Ignoring the P1128 code can lead to further damage to your Nissan’s engine and potentially more expensive repairs down the line. So, it’s best to address the issue as soon as possible to avoid any further complications.
Possible Causes and Fixes of Code P1128 Nissan
| Possible Cause | Fix | Cost to Fix |
|---|---|---|
| Throttle control motor circuit short | Replace the throttle control motor | $200-$500 |
| Throttle position sensor malfunction | Replace the throttle position sensor | $100-$300 |
| Faulty wiring or connections in the throttle control circuit | Repair or replace the wiring or connections | $100-$500 |
| Malfunctioning engine control module (ECM) | Replace the ECM | $500-$1000 |
How Serious is the P1128 Code in Nissan?
The P1128 code in Nissan indicates a problem with the throttle control motor circuit. This code is considered serious as it can affect the performance of the vehicle and cause safety issues while driving.
When the throttle control motor circuit is shorted, the engine may not respond properly to the accelerator pedal, resulting in poor acceleration or stalling. This can be dangerous, especially when driving at high speeds or in heavy traffic.
It is important to address the P1128 code as soon as possible to prevent further damage to the vehicle and ensure safe driving conditions. A qualified mechanic can diagnose and repair the issue, which may involve replacing the throttle control motor or repairing the wiring in the circuit.
Can You Still Drive with the P1128 Code on Your Nissan?
If you have a Nissan and the P1128 code appears, it means that there is a problem with the throttle control motor circuit. This can cause your vehicle to experience a variety of issues, including reduced power and acceleration, stalling, and difficulty starting.
While it may be possible to drive your Nissan with the P1128 code, it is not recommended. Continuing to drive with this code can cause further damage to your vehicle and potentially put you and other drivers at risk.
If you notice the P1128 code on your Nissan, it is best to have it diagnosed and repaired by a qualified mechanic as soon as possible. This will ensure that your vehicle is safe to drive and prevent any further damage from occurring.
Conclusion
Overall, the P1128 code in Nissan vehicles indicates a problem with the throttle control motor circuit. This can lead to issues with acceleration and overall performance of the vehicle. However, there are several potential causes for this code, ranging from a faulty throttle control motor to a damaged wiring harness. It is important to have the vehicle diagnosed by a professional mechanic to determine the exact cause and necessary repairs. Ignoring the issue can lead to further damage and potentially dangerous driving conditions.
FAQ
What is P1128 code in Nissan?
P1128 code in Nissan refers to a throttle control motor circuit short. It means that there is a problem with the throttle control motor circuit, which can cause issues with the engine’s performance.
What are the symptoms of P1128 code in Nissan?
The symptoms of P1128 code in Nissan include a check engine light, reduced engine power, hesitation or stalling while driving, and difficulty starting the engine.
What causes P1128 code in Nissan?
The most common causes of P1128 code in Nissan are a faulty throttle control motor, damaged wiring or connectors in the throttle control motor circuit, or a malfunctioning throttle position sensor.
How can I fix P1128 code in Nissan?
To fix P1128 code in Nissan, you should first check the wiring and connectors in the throttle control motor circuit for any damage or corrosion. If there are no issues with the wiring, you may need to replace the throttle control motor or the throttle position sensor.
Can I drive my Nissan with P1128 code?
It is not recommended to drive your Nissan with P1128 code as it can cause further damage to the engine and reduce its performance. It is best to have the issue diagnosed and fixed as soon as possible.
Learn about more p codes in Nissan here.
