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 the battery is showing a voltage that's too high and doesn't make sense. It's like when a thermometer says it's 200 degrees outside when it's actually only 70 degrees.
The vehicle's control module has detected an abnormal voltage reading from the battery voltage sense circuit 'B'. This reading is higher than expected and may not be accurate.
The P1B97 code is triggered when the hybrid or electric vehicle's battery management system detects an implausibly high voltage in the battery voltage sense circuit 'B'. This could indicate an issue with the voltage sensor, wiring, or the battery itself.
• Check engine light is on
• Reduced fuel efficiency
• Possible battery charging issues
• Faulty battery voltage sensor
• Damaged or corroded wiring/connectors
• Malfunctioning battery management system
OBD-II: On-Board Diagnostics, a standardized system for vehicle self-diagnostics.
Voltage Sensor: A device that measures the electrical voltage in a circuit.
• Use an OBD-II scanner to confirm the P1B97 code.
• Inspect the battery voltage sensor and related wiring for damage.
• Test the battery management system for faults.
• Replace the faulty battery voltage sensor.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the battery management system if necessary.
• OBD-II scanner
• Multimeter
• Wiring repair tools
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery connections and wiring.
• Ensure battery management software is up to date.
• Schedule routine maintenance checks for the hybrid/EV system.
Sensor Issue
• Avoid long trips until the issue is resolved.
• Consult with a certified hybrid/EV technician.
Check with the vehicle manufacturer for battery and hybrid system warranty coverage.
This code has become more common with the increasing prevalence of hybrid and electric vehicles, highlighting the importance of battery management systems.
Moderate – It is advisable to address this issue soon to prevent potential battery damage.
Ignoring this code could lead to reduced vehicle performance and potential safety hazards.
• Vehicle must be in a safe, stationary position.
• Battery should be at a normal operating temperature.
The battery voltage sensor is typically located near the vehicle's battery pack.
Q: Can I drive my car with a P1B97 code?
A: It's possible to drive short distances, but it's best to get it checked soon to avoid further issues.
Q: How do I reset the P1B97 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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