P1290 Nissan:Throttle Control Motor Relay Circuit Open Bank 2
If you own a Nissan and have encountered the P1290 code, you may be wondering . This code refers to a problem with the throttle control motor relay circuit in bank 2 of the engine. It can cause issues with acceleration and overall performance of the vehicle. However, with the right knowledge and tools, this issue can be resolved.
In this article, we will discuss the P1290 code in detail and provide steps on how to fix it.
Key Takeaways
Meaning: P1290 code in Nissan indicates an open circuit in the throttle control motor relay circuit of bank 2.
Causes: Faulty throttle control motor relay, damaged wiring or connectors, or a malfunctioning throttle control motor can cause this code.
Symptoms: Check Engine Light (CEL) illuminates, reduced engine power, poor acceleration, and engine stalling are some common symptoms of P1290 code.
Fixes: Repair or replace damaged wiring or connectors, replace the faulty throttle control motor relay, or replace the malfunctioning throttle control motor to fix P1290 code in Nissan.
P1290 Code Nissan Meaning
The P1290 code in a Nissan vehicle indicates that there is an issue with the throttle control motor relay circuit in bank 2.
This means that the engine control module (ECM) has detected an open circuit in the relay that controls the throttle motor in the second bank of cylinders. This can cause a variety of issues, including reduced engine performance, poor fuel economy, and difficulty starting the vehicle.
Signs and Symptoms of P1290 Code in Nissan Vehicles
Here are some of the most common signs and symptoms of the P1290 code in Nissan vehicles:
- Check Engine Light – The most obvious symptom of the P1290 code is the illumination of the check engine light on the dashboard. This light is designed to alert the driver that there is a problem with the engine or emissions system, and it should not be ignored.
- Reduced Power and Acceleration – Another common symptom of the P1290 code is reduced power and acceleration. This can be caused by a malfunctioning throttle control motor relay circuit, which can prevent the engine from receiving the proper amount of air and fuel to operate efficiently.
- Engine Stalling – In some cases, the P1290 code can cause the engine to stall or shut off completely. This can be a dangerous situation, especially if it happens while driving at high speeds or in heavy traffic.
- Difficulty Starting the Engine – A malfunctioning throttle control motor relay circuit can also make it difficult to start the engine. This can be caused by a lack of fuel or air entering the engine, which can prevent it from starting properly.
- Poor Fuel Economy – If the P1290 code is not addressed, it can also lead to poor fuel economy. This is because the engine is not receiving the proper amount of air and fuel to operate efficiently, which can cause it to burn more fuel than necessary.
P1290 Code Nissan Possible Causes
Here are some of the possible causes of the P1290 code:
- Faulty throttle control motor relay: A faulty relay can cause an open circuit in the throttle control motor relay circuit, leading to the P1290 code.
- Wiring issues: Damaged or corroded wiring in the throttle control motor relay circuit can cause an open circuit and trigger the P1290 code.
- Failed throttle control motor: A failed throttle control motor can cause an open circuit in the relay circuit, leading to the P1290 code.
- ECM issues: In rare cases, the P1290 code can be triggered due to a malfunctioning ECM.
Fixes for P1290 Code Nissan
Here are some possible fixes for this code:
- Check the throttle control motor relay circuit: The first step in fixing this code is to check the throttle control motor relay circuit in bank 2. This involves inspecting the wiring, connectors, and other components to ensure they are in good condition and functioning properly. If any issues are found, they should be repaired or replaced as needed.
- Replace the throttle control motor relay: If the circuit checks out okay, the next step is to replace the throttle control motor relay. This component is responsible for controlling the throttle motor and ensuring it operates correctly. A faulty relay can cause the motor to malfunction, leading to the P1290 code.
- Inspect the throttle body: In some cases, the problem may be with the throttle body itself. This component controls the amount of air that enters the engine and can affect its performance if it is not functioning correctly. Inspecting the throttle body and cleaning it may help resolve the issue.
- Check the throttle position sensor: The throttle position sensor (TPS) is another component that can cause the P1290 code. This sensor measures the position of the throttle and sends this information to the engine control module (ECM). If the TPS is faulty, it can cause the ECM to receive incorrect data and trigger the code.
- Replace the ECM: If all else fails, the issue may be with the ECM itself. This component is responsible for controlling various systems in the vehicle, including the throttle control motor relay circuit. If it is malfunctioning, it can cause the P1290 code to appear. In this case, replacing the ECM may be necessary.
How Much Will It Cost to Fix P1290 Code on Nissan?
If you own a Nissan and have encountered the P1290 code, you may be wondering how much it will cost to fix it. The P1290 code indicates that there is an issue with the throttle control motor relay circuit on bank 2 of your vehicle.
The cost of fixing the P1290 code on your Nissan will depend on several factors, including the severity of the issue and the type of repair needed. In some cases, the problem may be as simple as a loose or damaged wire, which can be fixed relatively inexpensively.
However, if the issue is more severe and requires the replacement of parts, the cost can be significantly higher. The cost of replacing the throttle control motor relay circuit on bank 2 can range from $200 to $500, depending on the make and model of your Nissan.
Possible Causes and Fixes of Code P1290 Nissan
| Possible Cause | Fix | Cost to Fix |
|---|---|---|
| Throttle control motor relay circuit open bank 2 | Replace the faulty throttle control motor relay | $100-$300 |
| Wiring issues in the throttle control motor relay circuit | Repair or replace the damaged wiring | $100-$500 |
| Failed throttle control motor | Replace the faulty throttle control motor | $200-$500 |
| Failed engine control module (ECM) | Replace the faulty ECM | $500-$1000 |
How Serious is the P1290 Code on a Nissan?
The P1290 code on a Nissan indicates a problem with the throttle control motor relay circuit in bank 2. This code is considered serious as it can cause the engine to run poorly or even stall while driving. It can also lead to decreased fuel efficiency and increased emissions.
If left unaddressed, the issue can cause further damage to the engine and other components. It is important to have the code diagnosed and repaired as soon as possible to prevent any further damage or safety concerns.
Can You Still Drive with the P1290 Code on Your Nissan?
If you have a Nissan and the P1290 code appears, it means that there is an issue with the throttle control motor relay circuit on bank 2. This can cause problems with the engine’s performance and may result in reduced power or stalling.
While it is possible to continue driving with the P1290 code, it is not recommended. The issue should be addressed as soon as possible to prevent further damage to the engine and ensure safe driving conditions.
Conclusion
The P1290 code in Nissan vehicles indicates a problem with the throttle control motor relay circuit in bank 2. This can cause issues with acceleration and engine performance. To fix this issue, it is recommended to check the wiring and connections in the circuit, replace any damaged components, and reset the engine control module. It is important to address this issue promptly to avoid further damage to the vehicle.
FAQ
What is the P1290 code in Nissan?
The P1290 code in Nissan refers to a problem with the throttle control motor relay circuit in bank 2 of the engine. This means that there is an open circuit in the relay that controls the throttle motor, which can cause issues with the engine’s performance.
What are the symptoms of a P1290 code in Nissan?
The symptoms of a P1290 code in Nissan can include a lack of power or acceleration, rough idling, stalling, and difficulty starting the engine. The check engine light may also be illuminated on the dashboard.
What causes a P1290 code in Nissan?
A P1290 code in Nissan can be caused by a variety of issues, including a faulty throttle control motor relay, a damaged wiring harness, or a malfunctioning throttle control motor. It can also be caused by a problem with the engine control module (ECM) or a poor electrical connection.
How is a P1290 code in Nissan diagnosed?
A P1290 code in Nissan is diagnosed using an OBD-II scanner, which will read the code and provide information about the specific issue causing the problem. The mechanic may also perform a visual inspection of the wiring and connections to the throttle control motor relay and motor.
How is a P1290 code in Nissan fixed?
To fix a P1290 code in Nissan, the mechanic will need to identify and repair the specific issue causing the problem. This may involve replacing the throttle control motor relay, repairing or replacing damaged wiring, or replacing the throttle control motor itself. In some cases, the ECM may need to be reprogrammed or replaced.
Learn about more p codes in Nissan here.
