P0B79 Nissan Code - Hybrid Battery Voltage Sense 'M' Circuit Low
Quick Answer
The P0B79 diagnostic trouble code (DTC) for Nissan vehicles refers to a Hybrid Battery Voltage Sense 'M' Circuit Low. Common causes include Faulty battery voltage sensor, Damaged wiring or connectors in the circuit, Depleted or malfunctioning hybrid battery. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0B79 Nissan indicates Hybrid Battery Voltage Sense 'M' Circuit Low.
- Common causes
- Common causes include Faulty battery voltage sensor, Damaged wiring or connectors in the circuit, Depleted or malfunctioning hybrid battery.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0B79 Nissan Description
The P0B79 diagnostic trouble code (DTC) for Nissan vehicles refers to a Hybrid Battery Voltage Sense 'M' Circuit Low. This code indicates that the voltage reading from the hybrid battery's sensor has fallen below the specified threshold, signaling a potential issue with the battery's voltage sensing circuit. In hybrid vehicles, the battery plays a crucial role in powering the electric motor and storing energy generated from regenerative braking. Therefore, any problems with the battery or its related circuits can affect the vehicle's performance and overall efficiency.
Common Causes of P0B79 Nissan
- Faulty battery voltage sensor
- Damaged wiring or connectors in the circuit
- Depleted or malfunctioning hybrid battery
- Issues with the hybrid control module
Symptoms of P0B79 Nissan
- Decreased fuel efficiency
- Reduced power output
- Difficulty starting the vehicle
- Complete loss of power
- Vehicle entering limp mode
How to Fix P0B79 Nissan
- Perform a thorough diagnosis using a scan tool to pinpoint the exact cause of the code.
- Inspect the battery voltage sensor, wiring, and connectors for any damage or corrosion.
- Test the hybrid battery's voltage and health to determine if it needs replacement.
- Replace any faulty components such as the sensor, wiring, or hybrid battery as needed.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix P0B79 Nissan
The cost of repairing a P0B79 code can vary depending on the specific cause of the issue and the required repairs. On average, repairing this code can range from $200 to $1000, including parts and labor. However, it is essential to note that the actual cost may differ based on the location, vehicle make and model, and the mechanic's labor rates. It is recommended to obtain quotes from multiple auto repair shops to get a more accurate estimate for the repair.
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