BMW P2064 Code:Reductant/Regeneration Supply Control Circuit High
As a car owner, it’s always frustrating to see a warning light pop up on your dashboard. One of the most common issues that BMW drivers face is the P2064 diagnostic trouble code (DTC). This code can indicate a problem with the reductant/regeneration supply control circuit, which can affect the performance and safety of your vehicle. In this article, we’ll explore the meaning, causes, symptoms, and fixes for the BMW P2064 code. Whether you’re a DIY mechanic or planning to take your car to a professional, this guide will help you understand the issue and find the best solution.
Understanding the BMW P2064 Code
The BMW P2064 code is a diagnostic trouble code (DTC) that indicates a problem with the reductant or regeneration supply control circuit in BMW vehicles. This code is typically triggered when the engine control module (ECM) detects a high voltage signal from the reductant or regeneration supply control circuit. The reductant system is responsible for reducing harmful emissions from the exhaust system, while the regeneration system helps to clean the diesel particulate filter (DPF). When the P2064 code appears, it can cause a variety of symptoms, including reduced engine performance, decreased fuel efficiency, and increased emissions. To fix this issue, it is important to diagnose the underlying cause of the problem, which may involve inspecting and repairing the wiring, connectors, or sensors associated with the reductant or regeneration supply control circuit.
Signs and Symptoms of BMW P2064 Code
When the BMW P2064 code appears, it indicates a problem with the reductant or regeneration supply control circuit. This can cause a range of symptoms that can affect the performance and safety of your vehicle. Here are some of the most common signs and symptoms of the BMW P2064 code:
- Check Engine Light: The most obvious symptom of the P2064 code is the illumination of the check engine light on your dashboard. This warning light can indicate a range of issues, but when it appears alongside the P2064 code, it is a clear indication that there is a problem with the reductant or regeneration supply control circuit.
- Reduced Engine Power: Another common symptom of the P2064 code is reduced engine power. This can cause your BMW to feel sluggish or unresponsive, and may make it difficult to accelerate or maintain speed on the highway.
- Poor Fuel Economy: When the reductant or regeneration supply control circuit is not functioning properly, it can cause your BMW to consume more fuel than usual. This can lead to poor fuel economy and increased costs at the gas pump.
- Failed Emissions Test: If you live in an area that requires emissions testing, a failed test can be a sign of the P2064 code. This is because the reductant or regeneration supply control circuit is responsible for reducing emissions, and when it is not working properly, your BMW may produce higher levels of pollutants.
- Other Warning Lights: In some cases, the P2064 code may trigger other warning lights on your dashboard, such as the traction control or stability control lights. This is because these systems rely on the reductant or regeneration supply control circuit to function properly.
If you notice any of these symptoms in your BMW, it is important to have the issue diagnosed and repaired as soon as possible. Ignoring the P2064 code can lead to further damage to your vehicle and may even pose a safety risk on the road. Contact a qualified mechanic or BMW specialist to get expert advice and solutions for your BMW P2064 code.
Possible Causes of BMW P2064 Code
The BMW P2064 code is a diagnostic trouble code (DTC) that indicates a problem with the reductant/regeneration supply control circuit. This code is usually triggered when the engine control module (ECM) detects a high voltage in the circuit. Here are some of the possible causes of the BMW P2064 code:
- Faulty reductant pump: The reductant pump is responsible for supplying the diesel exhaust fluid (DEF) to the selective catalytic reduction (SCR) system. If the pump is faulty, it may not be able to supply enough DEF to the system, causing the P2064 code to appear.
- Defective reductant injector: The reductant injector is responsible for injecting the DEF into the SCR system. If the injector is defective, it may not be able to inject enough DEF, causing the P2064 code to appear.
- Wiring issues: The wiring that connects the reductant pump, injector, and other components to the ECM may be damaged or corroded, causing a high voltage in the circuit and triggering the P2064 code.
- Failed ECM: In rare cases, the ECM itself may be faulty and unable to properly control the reductant/regeneration supply circuit, causing the P2064 code to appear.
It is important to note that the P2064 code may also be triggered by other issues, such as a malfunctioning SCR system or a clogged diesel particulate filter (DPF). Therefore, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper and safe operation of the vehicle.
Fixes for BMW P2064 Code
The BMW P2064 code is related to the reductant/regeneration supply control circuit high. This code indicates that there is an issue with the control circuit that supplies the reductant or diesel exhaust fluid (DEF) to the exhaust system for the purpose of reducing emissions. Here are some of the fixes for this code:
1. Check the wiring and connections: The first step in fixing the P2064 code is to check the wiring and connections in the reductant supply control circuit. Look for any damaged or corroded wires, loose connections, or broken pins in the connectors. Repair or replace any damaged components as necessary.
2. Replace the reductant pump: If the wiring and connections are in good condition, the next step is to check the reductant pump. A faulty pump can cause the P2064 code to appear. Replace the pump if it is not functioning properly.
3. Replace the reductant injector: Another possible cause of the P2064 code is a faulty reductant injector. This component is responsible for injecting the DEF into the exhaust system. If it is not working correctly, it can cause the code to appear. Replace the injector if necessary.
4. Check the reductant tank level sensor: The reductant tank level sensor is responsible for monitoring the level of DEF in the tank. If it is not working correctly, it can cause the P2064 code to appear. Check the sensor and replace it if necessary.
5. Reset the code: Once you have fixed the underlying issue, you will need to reset the code using a diagnostic tool. This will clear the code from the vehicle’s memory and turn off the check engine light.
In conclusion, the BMW P2064 code can be caused by a variety of issues related to the reductant supply control circuit. By checking the wiring and connections, replacing faulty components, and resetting the code, you can fix this issue and ensure that your BMW is running smoothly and efficiently.
How Much Will It Take to Fix the BMW P2064 Code?
If you’re experiencing the BMW P2064 code, you may be wondering how much it will cost to fix the issue. Unfortunately, there is no one-size-fits-all answer to this question, as the cost of repairs can vary depending on several factors.
One of the main factors that can impact the cost of repairs is the underlying cause of the P2064 code. In some cases, the issue may be relatively minor and easy to fix, such as a faulty sensor or a loose connection. In these cases, the cost of repairs may be relatively low, ranging from a few hundred to a thousand dollars.
However, if the issue is more severe, such as a damaged catalytic converter or a malfunctioning control module, the cost of repairs can be much higher. In these cases, you may be looking at repair costs of several thousand dollars or more.
Ultimately, the best way to determine the cost of repairs for the BMW P2064 code is to have your vehicle diagnosed by a qualified mechanic. They can identify the underlying cause of the issue and provide you with an accurate estimate for repairs.
Possible Causes and Fixes of Code
| Cause | Fix | Cost |
|---|---|---|
| Defective reductant injector | Replace reductant injector | $300-$500 |
| Malfunctioning reductant pump | Replace reductant pump | $400-$600 |
| Wiring issues in the reductant/ regeneration supply control circuit | Repair or replace wiring | $100-$300 |
| Failed reductant control module | Replace reductant control module | $500-$800 |
| Low quality or contaminated diesel exhaust fluid (DEF) | Drain and refill DEF tank with high quality DEF | $50-$100 |
Preventing the BMW P2064 Code
The BMW P2064 code is a diagnostic trouble code that indicates a problem with the reductant/regeneration supply control circuit in BMW vehicles. To prevent this code from occurring, there are several preventive measures that you can take.
1. Regular Maintenance: Regular maintenance of your BMW is essential to prevent any issues with the reductant/regeneration supply control circuit. This includes regular oil changes, air filter replacements, and fuel system cleanings. It is also important to follow the manufacturer’s recommended maintenance schedule.
2. Use High-Quality Fuel: Using high-quality fuel can help prevent the buildup of contaminants in the fuel system, which can lead to issues with the reductant/regeneration supply control circuit. It is recommended to use fuel with a high octane rating and to avoid using low-quality or contaminated fuel.
3. Check the Exhaust System: Regularly checking the exhaust system for any leaks or damage can help prevent issues with the reductant/regeneration supply control circuit. If you notice any issues with the exhaust system, it is important to have them repaired as soon as possible.
4. Check the Wiring and Connections: Checking the wiring and connections in the reductant/regeneration supply control circuit can help prevent issues with the code. Make sure that all connections are secure and that there are no damaged wires or connectors.
5. Use OEM Parts: Using OEM (original equipment manufacturer) parts can help prevent issues with the reductant/regeneration supply control circuit. These parts are designed specifically for your BMW and are of higher quality than aftermarket parts.
By following these preventive measures, you can help prevent the BMW P2064 code from occurring. Regular maintenance, using high-quality fuel, checking the exhaust system, checking the wiring and connections, and using OEM parts are all important steps in keeping your BMW running smoothly.
How Serious is the BMW P2064 Code?
The BMW P2064 code is a diagnostic trouble code that indicates a problem with the reductant/regeneration supply control circuit in BMW vehicles. This code is considered to be moderately serious, as it can affect the performance and efficiency of the vehicle’s emissions control system.
When the P2064 code is triggered, it means that the engine control module (ECM) has detected a high voltage signal from the reductant/regeneration supply control circuit. This can cause the vehicle to enter into a reduced power mode, which can affect its overall performance and drivability.
In addition, driving a vehicle with the P2064 code can also lead to increased emissions and potential damage to the catalytic converter. This can result in costly repairs and may even cause the vehicle to fail emissions testing.
If you suspect that your BMW has the P2064 code, it is important to have it diagnosed and repaired as soon as possible to prevent further damage and ensure the safety and reliability of your vehicle.
Can You Still Drive with the BMW P2064 Code?
If your BMW has triggered the P2064 code, it is important to address the issue as soon as possible. This code indicates a problem with the reductant/regeneration supply control circuit, which can affect the performance and emissions of your vehicle.
While you may still be able to drive your BMW with the P2064 code, it is not recommended. Continuing to drive with this code can cause further damage to your vehicle and may result in more expensive repairs down the line. Additionally, driving with a malfunctioning emissions system can lead to increased pollution and harm to the environment.
If you are unsure about the severity of the issue or the safety of driving your BMW, it is best to consult with a professional mechanic. They can diagnose the problem and provide recommendations for repairs or replacement parts. It is important to address the P2064 code promptly to ensure the continued performance and safety of your BMW.
Conclusion
If you are experiencing the BMW P2064 code, it is important to address the issue promptly to avoid any potential safety risks and costly repairs. The code indicates a problem with the reductant/regeneration supply control circuit, which can lead to decreased engine performance and increased emissions. Some common causes of the code include faulty sensors, wiring issues, or a malfunctioning control module. It is recommended to have a professional mechanic diagnose and repair the issue to ensure proper and safe functioning of your BMW. By addressing the issue promptly, you can avoid further damage and ensure your BMW runs smoothly for years to come.
FAQ
What does the BMW P2064 code mean?
The BMW P2064 code refers to a problem with the reductant/regeneration supply control circuit, indicating that there is a high voltage reading in the circuit.
What are the common causes of the BMW P2064 code?
The common causes of the BMW P2064 code include a faulty reductant pump, damaged wiring or connectors in the reductant system, a malfunctioning reductant injector, or a failed reductant control module.
What are the symptoms of the BMW P2064 code?
The symptoms of the BMW P2064 code may include a check engine light, reduced engine power, poor acceleration, and decreased fuel efficiency.
Can I still drive my BMW with the P2064 code?
It is not recommended to drive your BMW with the P2064 code, as it can cause further damage to the vehicle and potentially lead to safety issues.
How much does it cost to fix the BMW P2064 code?
The cost to fix the BMW P2064 code can vary depending on the specific cause of the issue, but it can range from $200 to $1000 or more.
Can I fix the BMW P2064 code myself?
It is not recommended to attempt to fix the BMW P2064 code yourself unless you have experience and knowledge in automotive repair. It is best to seek the help of a professional mechanic.
How can I prevent the BMW P2064 code from occurring?
To prevent the BMW P2064 code from occurring, it is important to properly maintain your vehicle and address any issues as soon as they arise. Regularly servicing your reductant system and keeping an eye out for warning signs can also help prevent this code from appearing.
Learn about other similar BMW Fault Codes from our BMW OBD 2 Fault Code List.
