Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that checks the battery's power. It thinks the power is too low.
The P1B1B code is triggered when the vehicle's control module detects a low voltage reading from the 'F' circuit of the hybrid or electric vehicle battery pack.
The P1B1B code indicates that the voltage sense circuit labeled 'F' in the hybrid or electric vehicle's battery pack is reading a voltage lower than expected. This could be due to a fault in the sensor, wiring issues, or a problem with the battery pack itself.
• Check Engine Light is on
• Reduced vehicle performance
• Possible battery warning light
• Faulty battery voltage sensor
• Damaged or corroded wiring/connectors
• Battery pack malfunction
OBD-II: On-Board Diagnostics, a system that monitors the performance of the vehicle.
Multimeter: A tool used to measure electrical voltage, current, and resistance.
• Use an OBD-II scanner to confirm the code.
• Inspect the battery voltage sensor and related wiring.
• Check the battery pack for any visible damage.
• Replace the faulty battery voltage sensor.
• Repair or replace damaged wiring/connectors.
• Service or replace the battery pack if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $1000
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the battery system
• Ensure all electrical connections are clean and secure
• Monitor battery health regularly
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving the vehicle if performance is significantly reduced.
Check with the vehicle manufacturer for battery warranty coverage.
This code has been more common as hybrid and electric vehicles have become more prevalent.
Moderate – It is important to address this issue to prevent further damage to the battery system.
Driving with a malfunctioning battery system can be unsafe and may lead to further vehicle damage.
• Vehicle must be in a safe environment.
• Battery system should be at normal operating temperature.
The battery voltage sense circuit is located within the hybrid/EV battery pack, typically found under the vehicle or in the trunk area.
Q: Can I drive my car with this code?
A: It's not recommended to drive the car with this code active, as it may lead to further damage to the battery system.
Q: How can I reset the code?
A: You can reset the code using an OBD-II scanner, but it's important to fix the underlying issue first.
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