BMW P0373 Code:Timing Reference High Resolution Signal ‘A’ Intermittent/Erratic Pulses
As a car owner, it can be frustrating to see a warning light pop up on your dashboard. One of the most common issues that BMW owners face is the P0373 code. This diagnostic trouble code (DTC) is associated with the timing reference high-resolution signal ‘A’ intermittent/erratic pulses. If you’re experiencing this problem, you may be wondering what it means, what symptoms are associated with it, and how to fix it. In this article, we’ll explore the meaning, causes, symptoms, and fixes for the BMW P0373 code, so you can get back on the road with confidence.
What Does the BMW P0373 Code Mean?
The BMW P0373 code is a diagnostic trouble code (DTC) that indicates an issue with the timing reference high resolution signal ‘A’. This signal is used by the engine control module (ECM) to determine the position of the crankshaft and camshaft. When the signal is intermittent or erratic, it can cause a range of problems with the engine’s performance, including misfires, rough idling, and reduced power. The code is typically triggered when the ECM detects a certain number of intermittent or erratic pulses from the signal. It is important to diagnose and fix the issue promptly to prevent further damage to the engine and ensure optimal performance.
Signs and Symptoms of BMW P0373 Code
When the BMW P0373 code appears, it indicates that there is an issue with the timing reference high-resolution signal ‘A’ intermittent/erratic pulses. This can cause a range of symptoms that can affect the performance and drivability of the vehicle. Here are some of the most common signs and symptoms of the BMW P0373 code:
- Check Engine Light: The most obvious sign of the BMW P0373 code is the illumination of the check engine light on the dashboard. This light can indicate a range of issues, but when it is accompanied by other symptoms, it is likely related to the timing reference signal.
- Engine Misfires: When the timing reference signal is erratic, it can cause the engine to misfire. This can result in a rough idle, hesitation, and a lack of power when accelerating.
- Poor Fuel Economy: A faulty timing reference signal can also cause the engine to run less efficiently, resulting in poor fuel economy. This can be especially noticeable over time, as the vehicle may require more frequent refueling.
- Stalling: In some cases, the BMW P0373 code can cause the engine to stall. This can be dangerous if it happens while driving, as it can result in a loss of power steering and brakes.
- Difficulty Starting: When the timing reference signal is intermittent, it can make it difficult to start the engine. This can be especially noticeable in cold weather or after the vehicle has been sitting for a while.
If you are experiencing any of these symptoms, it is important to have your BMW diagnosed by a qualified mechanic. Ignoring the issue can lead to further damage to the engine and other components, resulting in more costly repairs down the line.
Possible Causes of BMW P0373 Code
The BMW P0373 code is related to the timing reference high-resolution signal ‘A’ intermittent/erratic pulses. This code indicates that there is an issue with the signal that is sent from the crankshaft position sensor to the engine control module (ECM). Here are some of the possible causes of this code:
- Faulty Crankshaft Position Sensor: The most common cause of the P0373 code is a faulty crankshaft position sensor. This sensor is responsible for sending the signal to the ECM, and if it is not working properly, it can cause intermittent or erratic pulses.
- Wiring Issues: Another possible cause of the P0373 code is wiring issues. If there is a problem with the wiring that connects the crankshaft position sensor to the ECM, it can cause the signal to be interrupted or distorted.
- ECM Malfunction: In some cases, the issue may be with the ECM itself. If the ECM is not functioning properly, it may not be able to receive or interpret the signal from the crankshaft position sensor correctly.
- Timing Belt or Chain Issues: If the timing belt or chain is worn or damaged, it can cause the crankshaft position sensor to send an erratic signal to the ECM.
- Engine Mechanical Problems: Finally, there may be mechanical issues with the engine that are causing the P0373 code. For example, if there is a problem with the camshaft or crankshaft, it can cause the signal to be interrupted or distorted.
In conclusion, the BMW P0373 code can be caused by a variety of issues, including a faulty crankshaft position sensor, wiring issues, ECM malfunction, timing belt or chain issues, and engine mechanical problems. If you are experiencing this code, it is important to have your vehicle diagnosed by a qualified mechanic to determine the root cause of the issue and to ensure that it is repaired properly.
Fixes for BMW P0373 Code
The P0373 code in BMW vehicles is related to the timing reference high-resolution signal ‘A’ intermittent/erratic pulses. This code can cause various issues with the vehicle’s performance, including rough idling, misfires, and reduced power. Here are some of the fixes for the BMW P0373 code:
- Check the wiring and connections: The first step in fixing the P0373 code is to check the wiring and connections related to the timing reference sensor. Look for any damaged or corroded wires, loose connections, or broken pins. Repair or replace any damaged components as necessary.
- Replace the timing reference sensor: If the wiring and connections are in good condition, the next step is to replace the timing reference sensor. This sensor is responsible for providing the engine control module (ECM) with information about the engine’s position and speed. A faulty sensor can cause the ECM to receive incorrect data, leading to the P0373 code.
- Check the timing chain: In some cases, the P0373 code may be caused by a stretched or damaged timing chain. This can affect the engine’s timing and cause issues with the timing reference sensor. If the timing chain is found to be faulty, it will need to be replaced.
- Replace the ECM: In rare cases, the P0373 code may be caused by a faulty ECM. If all other components have been checked and are in good condition, the ECM may need to be replaced to resolve the issue.
- Perform a software update: In some cases, a software update may be available to address issues with the timing reference sensor. Check with a BMW dealership or mechanic to see if a software update is available for your vehicle.
It’s important to note that the fixes for the P0373 code may vary depending on the specific BMW model and year. It’s always best to consult with a qualified mechanic or dealership for advice on how to resolve this issue. Ignoring the P0373 code can lead to further damage to the engine and other components, so it’s important to address the issue as soon as possible.
How Much Will It Take to Fix BMW P0373 Code?
The cost of fixing the BMW P0373 code can vary depending on the underlying cause of the issue. In some cases, it may be a simple fix that can be resolved with a quick adjustment or replacement of a faulty component. However, in other cases, it may require more extensive repairs that can be costly.
The first step in determining the cost of fixing the P0373 code is to diagnose the issue. This may involve using diagnostic tools to identify the specific problem and determine the best course of action. Once the issue has been identified, the cost of the repair can be estimated based on the required parts and labor.
Some common causes of the P0373 code include faulty sensors, damaged wiring, or issues with the engine’s timing system. Depending on the cause, the cost of repairs can range from a few hundred dollars to several thousand dollars.
If you are experiencing issues with your BMW and have received the P0373 code, it is important to have it diagnosed and repaired as soon as possible to prevent further damage to your vehicle. Contact a qualified mechanic or BMW dealership for expert advice on resolving this issue.
Possible Causes and Fixes of Code
| Possible Cause | Fix | Cost to Fix |
|---|---|---|
| Failed crankshaft position sensor | Replace crankshaft position sensor | $150-$300 |
| Wiring issues in the timing reference high resolution signal circuit | Repair or replace wiring as necessary | $100-$500 |
| Failed engine control module (ECM) | Replace ECM | $500-$1000 |
| Failed camshaft position sensor | Replace camshaft position sensor | $150-$300 |
| Failed timing chain or belt | Replace timing chain or belt | $500-$1500 |
Preventing BMW P0373 Code
The BMW P0373 code is a common issue that can cause problems with the timing reference high-resolution signal ‘A’ in BMW vehicles. To prevent this code from occurring, there are several preventive measures that you can take. Here are some of the most effective ways to prevent the BMW P0373 code:
- Regular Maintenance: One of the most important preventive measures is to ensure that your BMW vehicle undergoes regular maintenance. This includes regular oil changes, tune-ups, and inspections. Regular maintenance can help prevent issues with the timing reference signal and other components of your vehicle.
- Use High-Quality Parts: Another way to prevent the BMW P0373 code is to use high-quality parts when repairing or replacing components in your vehicle. Low-quality parts can cause issues with the timing reference signal and other components, leading to the code.
- Check Engine Light: If your BMW’s check engine light comes on, it’s important to have it checked out by a professional mechanic. Ignoring the check engine light can lead to more serious issues, including the BMW P0373 code.
- Drive Responsibly: Driving your BMW responsibly can also help prevent the BMW P0373 code. Avoid aggressive driving, excessive idling, and other behaviors that can put stress on your vehicle’s components.
- Keep Your Vehicle Clean: Keeping your BMW clean can also help prevent the BMW P0373 code. Dirt and debris can build up on your vehicle’s components, causing issues with the timing reference signal and other components.
By following these preventive measures, you can help prevent the BMW P0373 code from occurring in your vehicle. Regular maintenance, using high-quality parts, checking the engine light, driving responsibly, and keeping your vehicle clean are all important steps to take to keep your BMW running smoothly and prevent issues with the timing reference signal. If you do experience the BMW P0373 code, it’s important to have it diagnosed and repaired by a professional mechanic to prevent further damage to your vehicle.
How Serious is the BMW P0373 Code?
The BMW P0373 code is a serious issue that should not be ignored. This code indicates that there is a problem with the timing reference high-resolution signal ‘A’ intermittent/erratic pulses. This signal is critical for the proper functioning of the engine, and any issues with it can cause significant problems.
When this code appears, it can cause a variety of symptoms, including engine misfires, rough idling, and reduced power. These symptoms can be dangerous, especially if they occur while driving at high speeds or in heavy traffic. In some cases, the engine may even stall, leaving the driver stranded on the side of the road.
There are several potential causes of the BMW P0373 code, including faulty sensors, damaged wiring, or a malfunctioning engine control module. Diagnosing and fixing the issue can be challenging, and it is recommended that you seek the help of a qualified mechanic to ensure that the problem is properly resolved.
In conclusion, the BMW P0373 code is a serious issue that should not be ignored. If you experience any symptoms associated with this code, it is essential to have your vehicle inspected by a professional to prevent further damage and ensure your safety on the road.
Can You Still Drive with the BMW P0373 Code?
If you are experiencing the BMW P0373 code, it is not recommended to continue driving your vehicle until the issue is resolved. This code indicates a problem with the timing reference high-resolution signal ‘A’ intermittent/erratic pulses, which can cause serious damage to your engine if left untreated.
Driving with the BMW P0373 code can result in poor engine performance, reduced fuel efficiency, and potential engine damage. It is important to address this issue as soon as possible to avoid further complications.
To diagnose and fix the issue, it is recommended to take your BMW to a certified mechanic or dealership. They will be able to use specialized equipment to identify the root cause of the problem and provide a proper solution.
Ignoring the BMW P0373 code can lead to more expensive repairs down the line, so it is best to address the issue promptly to ensure the safety and longevity of your vehicle.
Conclusion
Overall, the BMW P0373 code can be a frustrating issue for BMW owners and mechanics alike. However, with the right knowledge and tools, it can be diagnosed and fixed. It is important to address this issue promptly to avoid further damage to the vehicle. If you are experiencing symptoms associated with this code, it is recommended to seek the advice of a professional mechanic or BMW specialist to ensure proper diagnosis and repair. By taking the necessary steps, you can get your BMW back on the road and running smoothly once again.
FAQ
What is the BMW P0373 code?
The BMW P0373 code is a diagnostic trouble code (DTC) that indicates an issue with the timing reference high resolution signal ‘A’ intermittent/erratic pulses.
What are the symptoms of the BMW P0373 code?
The symptoms of the BMW P0373 code may include engine misfires, rough idling, decreased fuel efficiency, and difficulty starting the vehicle.
What causes the BMW P0373 code?
The BMW P0373 code may be caused by a faulty crankshaft position sensor, damaged wiring or connectors, or a malfunctioning engine control module (ECM).
How is the BMW P0373 code diagnosed?
The BMW P0373 code can be diagnosed using an OBD-II scanner, which will retrieve the code and any associated freeze frame data. The mechanic may also perform a visual inspection of the wiring and connectors, and test the crankshaft position sensor and ECM.
Can I still drive my BMW with the P0373 code?
It is not recommended to drive your BMW with the P0373 code, as it can cause further damage to the engine and decrease fuel efficiency.
How is the BMW P0373 code fixed?
The BMW P0373 code can be fixed by replacing the faulty crankshaft position sensor, repairing any damaged wiring or connectors, or replacing the malfunctioning ECM.
How much does it cost to fix the BMW P0373 code?
The cost to fix the BMW P0373 code can vary depending on the cause of the issue and the location of the repair. It may cost anywhere from $100 to $500 or more.
Learn about other similar BMW Fault Codes from our BMW OBD 2 Fault Code List.