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 sensor that checks how thick the battery cells are in a hybrid or electric car. It's like when a ruler can't measure something correctly.
The P2E72 code indicates that the sensor responsible for measuring the thickness of the cells in the hybrid or electric vehicle's battery pack is reporting a lower than expected voltage, suggesting a potential issue with the sensor or its circuit.
The Hybrid/EV Battery Pack B Cell Thickness Sensor Circuit Low error indicates a malfunction in the circuit responsible for monitoring the thickness of battery cells. This could be due to a faulty sensor, wiring issues, or problems with the battery management system.
• Check engine light illuminated
• Reduced battery performance
• Potentially decreased vehicle range
• Faulty cell thickness sensor
• Damaged or corroded wiring or connectors
• Malfunctioning battery management system
OBD-II: On-Board Diagnostics, a standardized system for vehicle diagnostics.
Multimeter: A tool used to measure electrical voltage, current, and resistance.
• Verify the code using an OBD-II scanner.
• Inspect the sensor and wiring for damage or corrosion.
• Test the sensor for proper operation using a multimeter.
• Replace the faulty cell thickness sensor.
• Repair or replace damaged wiring or connectors.
• Update or repair the battery management system if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect battery connectors and wiring.
• Ensure software updates for the battery management system are applied.
• Perform routine maintenance checks on the battery system.
Sensor Issue
• Do not ignore the check engine light.
• Consult with a professional mechanic if unsure about repairs.
Check with your vehicle manufacturer for warranty coverage on hybrid/EV battery components.
This code has become more common as hybrid and electric vehicles have increased in popularity, highlighting the importance of battery management systems.
Moderate – While the vehicle may still operate, ignoring the issue could lead to reduced battery efficiency and potential long-term damage.
Driving with a malfunctioning battery sensor can lead to unpredictable vehicle performance and should be addressed promptly to ensure safety.
• Vehicle in a safe, stationary position.
• Battery fully charged for accurate diagnostics.
The cell thickness sensor is typically located within or near the battery pack of the vehicle.
Q: Can I drive with a P2E72 code?
A: It's possible to drive, but it's not recommended as it could lead to further battery issues.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the battery system can help prevent issues.
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