Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks one of the sensors checking the battery's voltage is reading too high. It's like when a thermometer says it's hotter than it actually is.
The vehicle's control module has detected a voltage reading that is higher than expected from the battery pack voltage sense circuit C.
The P0B1C code is triggered when the hybrid or electric vehicle's battery management system senses an abnormally high voltage reading from the battery pack voltage sense circuit C. This could indicate a fault in the sensor, wiring, or the battery itself.
• Check engine light is on
• Reduced fuel efficiency
• Possible reduced power output
• Faulty voltage sensor
• Damaged or corroded wiring
• Faulty battery management system
Voltage Sensor: A device that measures the voltage of the battery pack.
Battery Management System: A system that manages and monitors the performance of the battery pack.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections for damage or corrosion.
• Test the voltage sensor for proper operation.
• Replace the faulty voltage sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the battery management system if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure battery connections are clean and secure
• Avoid extreme temperatures
Sensor Issue
• Have the vehicle inspected by a professional.
• Avoid driving under heavy load until the issue is resolved.
Check with your vehicle manufacturer, as hybrid/EV components may have extended warranties.
This code has become more common with the increase in hybrid and electric vehicles, highlighting the importance of battery management systems.
Moderate – While the vehicle may still operate, it could lead to reduced efficiency and potential battery damage if not addressed.
Ignoring this code may lead to further damage and reduced vehicle performance, which could affect safety.
• Vehicle at operating temperature
• Battery fully charged
The voltage sensor is typically located within or near the battery pack.
Q: Can I drive my car with this code?
A: It's possible, but not recommended as it may lead to further issues.
Q: Will this code affect my car's performance?
A: Yes, it could lead to reduced efficiency and power output.
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