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 found a problem with the way it senses the voltage in a part of the battery pack. It's like the car is saying, 'I can't tell how much power is in this part of the battery!'
The P0B14 code is triggered when the vehicle's powertrain control module (PCM) detects a malfunction in the voltage sensing circuit for a specific section (B) of the hybrid or electric vehicle battery pack.
The P0B14 code indicates an issue with the voltage sensing circuit in the hybrid or electric vehicle's battery pack. This circuit is responsible for monitoring the voltage levels in the battery cells to ensure they are within the specified range. If the PCM detects a voltage that is too high, too low, or erratic, it will set this code.
• Check Engine Light illuminated
• Reduced fuel efficiency
• Possible loss of electric-only mode
• Faulty battery pack voltage sensor
• Damaged or corroded wiring/connectors
• Defective battery control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Perform a visual inspection of the battery pack and related wiring.
• Use a scan tool to check for other related codes.
• Test the battery pack voltage sensor and circuit for proper operation.
• Replace the faulty battery pack voltage sensor.
• Repair or replace damaged wiring/connectors.
• Replace the defective battery control module.
• OBD-II scan tool
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery pack connections.
• Ensure battery pack is kept clean and dry.
• Schedule routine maintenance checks.
Sensor Issue
• Avoid driving in extreme temperatures.
• Regularly check for software updates.
• Consult a professional technician if the issue persists.
Check with your vehicle manufacturer for battery pack warranty coverage, as many hybrid and EV batteries have extended warranties.
This code has become more common as hybrid and electric vehicles have grown in popularity, reflecting the importance of accurate battery monitoring.
Moderate – While the vehicle may still operate, ignoring this issue can lead to decreased performance and potential battery damage.
Driving with this code may not comply with emissions regulations and could lead to further vehicle damage.
• Vehicle at operating temperature
• Battery pack fully charged
The battery pack voltage sensor is typically located within or near the battery pack, often under the vehicle or in the trunk area.
Q: Can I drive my car with this code?
A: While you may be able to drive, it's not recommended as it can lead to further issues.
Q: Will this affect my car's performance?
A: Yes, it can reduce fuel efficiency and limit electric-only driving capabilities.
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