P0B79 Nissan:Hybrid Battery Voltage Sense ‘M’ Circuit Low
If you own a Nissan hybrid and have been experiencing issues with the battery voltage sense ‘M’ circuit, then you may have encountered the P0B79 code. This code indicates that the voltage sense circuit is reading a low voltage, which can lead to a variety of problems with your vehicle’s performance. However, with the right knowledge and tools, you can fix this issue and get your Nissan hybrid back on the road in no time. In this article, we will discuss what the P0B79 code means, what causes it, and how to fix it. So, let’s get started!Most models of Nissan will work with the fixes we will discuss for the P0B79 code. This includes popular models such as the Nissan Altima, Maxima, Rogue, Sentra, and Pathfinder. If you are experiencing this code, it is important to address it promptly to avoid further damage to your vehicle. With the right tools and knowledge, you can fix this issue and get your Nissan back on the road in no time.
Key Takeaways:
Meaning: P0B79 code indicates a low voltage reading in the hybrid battery voltage sense ‘M’ circuit.
Causes: Faulty battery sensor, damaged wiring, or a malfunctioning battery control module can trigger this code.
Symptoms: Check Engine Light (CEL) illumination, reduced fuel efficiency, and poor performance are common symptoms of P0B79 code.
Fixes: Repair or replace the damaged wiring, battery sensor, or battery control module to fix the P0B79 code.
P0B79 Code Nissan:
The P0B79 code in a Nissan vehicle indicates a problem with the hybrid battery voltage sense ‘M’ circuit. This means that the voltage sensor in the hybrid battery is not functioning properly, resulting in a low voltage reading. This can cause issues with the vehicle’s performance and may result in reduced fuel efficiency. To fix this issue, the voltage sensor will need to be inspected and potentially replaced. It is recommended to take the vehicle to a certified Nissan technician for proper diagnosis and repair.
Signs and Symptoms of P0B79 Code in Nissan
The P0B79 code in Nissan refers to the Hybrid Battery Voltage Sense ‘M’ Circuit Low. This code is related to the hybrid battery system in Nissan vehicles. When this code appears, it indicates that there is a problem with the voltage sense circuit in the hybrid battery system. Here are some of the signs and symptoms of the P0B79 code in Nissan:
- Check Engine Light: The most common symptom of the P0B79 code is the illumination of the check engine light on the dashboard. This light indicates that there is a problem with the vehicle’s hybrid battery system.
- Reduced Fuel Economy: Another symptom of the P0B79 code is reduced fuel economy. This is because the hybrid battery system is not functioning properly, which can cause the vehicle to use more fuel than usual.
- Reduced Performance: The P0B79 code can also cause a reduction in the vehicle’s performance. This is because the hybrid battery system is not providing the necessary power to the vehicle’s engine.
- Difficulty Starting: In some cases, the P0B79 code can cause difficulty starting the vehicle. This is because the hybrid battery system is not providing enough power to start the engine.
- Other Codes: The P0B79 code can also trigger other codes related to the hybrid battery system. These codes may include P0B78, P0B7A, and P0B7B.
If you notice any of these symptoms in your Nissan vehicle, it is important to have it checked by a qualified mechanic. Ignoring the P0B79 code can lead to further damage to the hybrid battery system, which can be expensive to repair. A mechanic will be able to diagnose the problem and recommend the necessary repairs to get your vehicle back to its optimal performance.
P0B79 Code Nissan:
The P0B79 code is a diagnostic trouble code (DTC) that indicates a problem with the hybrid battery voltage sense ‘M’ circuit in a Nissan vehicle. This code is specific to hybrid vehicles and is commonly found in Nissan models such as the Altima, Rogue, and Pathfinder.
- Faulty hybrid battery voltage sensor: The most common cause of the P0B79 code is a faulty hybrid battery voltage sensor. This sensor is responsible for monitoring the voltage of the hybrid battery and sending this information to the engine control module (ECM). If the sensor is faulty, it may send incorrect voltage readings to the ECM, triggering the P0B79 code.
- Wiring issues: Another possible cause of the P0B79 code is wiring issues in the hybrid battery voltage sense ‘M’ circuit. This can include damaged or corroded wiring, loose connections, or a short circuit. These issues can prevent the sensor from sending accurate voltage readings to the ECM, triggering the code.
- Failed hybrid battery: In some cases, the P0B79 code may be caused by a failed hybrid battery. If the battery is unable to maintain a consistent voltage, it can trigger the code. This is more likely to occur in older hybrid vehicles or those with high mileage.
- ECM issues: Finally, the P0B79 code may be caused by issues with the engine control module (ECM). If the ECM is unable to receive accurate voltage readings from the hybrid battery voltage sensor, it may trigger the code. This is less common than the other causes but should still be considered if all other potential causes have been ruled out.
If you are experiencing the P0B79 code in your Nissan vehicle, it is important to have it diagnosed and repaired as soon as possible. Ignoring the code can lead to further damage to your vehicle and potentially costly repairs down the line. A qualified mechanic can diagnose the issue and recommend the appropriate repairs, which may include replacing the hybrid battery voltage sensor, repairing wiring issues, or replacing the hybrid battery.
Fixes for P0B79 Code Nissan
The P0B79 code in Nissan vehicles indicates a problem with the hybrid battery voltage sense ‘M’ circuit, which is responsible for monitoring the voltage of the battery. This code can be caused by a variety of issues, including a faulty battery, damaged wiring, or a malfunctioning sensor. Here are some of the fixes for the P0B79 code:
- Replace the hybrid battery: If the battery is faulty or damaged, it may need to be replaced. This is a costly fix, but it may be necessary if the battery is beyond repair.
- Repair damaged wiring: If the wiring in the hybrid battery voltage sense ‘M’ circuit is damaged or corroded, it may need to be repaired or replaced. This can be done by a professional mechanic or electrician.
- Replace the sensor: If the sensor that monitors the voltage of the battery is malfunctioning, it may need to be replaced. This is a relatively simple fix that can be done by a mechanic.
- Reset the code: In some cases, the P0B79 code may be triggered by a temporary issue, such as a loose connection. In these cases, resetting the code may fix the problem. This can be done using an OBD-II scanner or by disconnecting the battery for a few minutes.
- Perform a software update: In some cases, the P0B79 code may be caused by a software issue. In these cases, a software update may be necessary to fix the problem. This can be done by a Nissan dealer or a professional mechanic.
It’s important to note that the fixes for the P0B79 code can vary depending on the specific cause of the problem. If you’re not sure what’s causing the code to appear, it’s best to take your vehicle to a professional mechanic or Nissan dealer for diagnosis and repair. Ignoring the P0B79 code can lead to further damage to your vehicle and potentially dangerous driving conditions.
How Much Will It Cost to Fix P0B79 Code in Nissan?
The P0B79 code in Nissan indicates a problem with the hybrid battery voltage sense ‘M’ circuit, which is responsible for monitoring the voltage of the battery pack. If this circuit is malfunctioning, it can cause various issues with the hybrid system, including reduced performance and fuel economy.
The cost of fixing the P0B79 code in Nissan can vary depending on the severity of the problem and the extent of the repairs needed. In some cases, the issue may be resolved by simply resetting the code using a diagnostic tool, which can cost around $50 to $100.
However, if the problem is more serious and requires replacing or repairing the hybrid battery or related components, the cost can be significantly higher. The cost of a new hybrid battery for a Nissan can range from $3,000 to $5,000, while labor costs can add another $1,000 to $2,000.
It’s important to have the P0B79 code diagnosed and repaired as soon as possible to prevent further damage to the hybrid system and ensure optimal performance and fuel efficiency. Consulting with a certified Nissan technician is recommended to accurately diagnose and repair the issue.
Possible Causes and Fixes of Code P0B79 for Nissan
| Possible Cause | Fix | Cost to Fix |
|---|---|---|
| Low voltage in the hybrid battery | Replace the hybrid battery or repair the battery pack | Varies depending on the extent of the damage and the type of repair needed. Can range from $500 to $5000. |
| Faulty voltage sensor | Replace the voltage sensor | Approximately $100 to $300 |
| Wiring issues in the voltage sense circuit | Repair or replace the wiring in the voltage sense circuit | Varies depending on the extent of the damage and the type of repair needed. Can range from $100 to $1000. |
| Issues with the hybrid battery control module | Replace the hybrid battery control module | Approximately $500 to $1000 |
How Serious is the P0B79 Code for Nissan?
The P0B79 code for Nissan indicates a problem with the hybrid battery voltage sense ‘M’ circuit, specifically that the circuit is reading a low voltage. This can cause issues with the hybrid system and may result in reduced performance or even a complete failure of the system.
While the code itself may not be immediately dangerous, it is important to address the issue as soon as possible to prevent further damage to the hybrid system. Ignoring the code could lead to more serious problems down the line, such as a complete failure of the hybrid battery or other components.
If you are experiencing the P0B79 code for your Nissan, it is recommended to have the vehicle inspected by a qualified mechanic to determine the root cause of the issue and make any necessary repairs.
Can You Still Drive with the P0B79 Code on Your Nissan?
If you see the P0B79 code on your Nissan, it means that there is an issue with the hybrid battery voltage sense ‘M’ circuit. This can cause problems with the performance of your vehicle, including reduced power and decreased fuel efficiency.
While you may still be able to drive your Nissan with the P0B79 code, it is not recommended. Continuing to drive with this code can cause further damage to your vehicle and potentially lead to more expensive repairs down the line.
If you see the P0B79 code on your Nissan, it is best to take it to a certified mechanic as soon as possible to diagnose and fix the issue. This will ensure that your vehicle is running at its best and prevent any further damage from occurring.
Conclusion
The P0B79 code in a Nissan indicates a problem with the hybrid battery voltage sense ‘M’ circuit being too low. This can cause issues with the vehicle’s performance and should be addressed promptly. Possible causes include a faulty battery, damaged wiring, or a malfunctioning sensor. It is recommended to have a professional diagnose and repair the issue to ensure proper functioning of the vehicle.
FAQ
What does the P0B79 code mean for my Nissan?
The P0B79 code indicates that there is a problem with the Hybrid Battery Voltage Sense ‘M’ Circuit, specifically that the voltage is too low.
What causes the P0B79 code to appear?
The P0B79 code can be caused by a variety of issues, including a faulty battery, damaged wiring, or a malfunctioning sensor.
How can I diagnose the cause of the P0B79 code?
To diagnose the cause of the P0B79 code, you will need to use a diagnostic scanner to read the code and determine the specific issue. From there, you can inspect the battery, wiring, and sensor to identify the problem.
Can I fix the P0B79 code myself?
While it is possible to fix the P0B79 code yourself, it is recommended that you take your Nissan to a professional mechanic or dealership to ensure that the issue is properly diagnosed and repaired.
How much does it cost to fix the P0B79 code?
The cost to fix the P0B79 code will vary depending on the specific issue causing the code to appear. In general, repairs can range from a few hundred to several thousand dollars.
Learn about more p codes in Nissan here.
