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 computer in your hybrid or electric car thinks there's a problem with the thickness of one of the battery cells. It's like noticing that one of the batteries in your toy is a different size than the others.
The vehicle's control module has detected an issue with the thickness of a cell in the battery pack, which could affect the battery's performance and safety.
The P2E70 code is triggered when the Battery Management System (BMS) detects that one or more cells in the battery pack have an abnormal thickness. This can be caused by swelling, which may indicate overheating, overcharging, or a potential failure of the cell.
• Reduced battery performance
• Warning light on the dashboard
• Possible reduced driving range
• Overcharging of the battery cells
• Manufacturing defect in the battery cell
• Thermal expansion due to overheating
BMS: Battery Management System
OBD-II: On-Board Diagnostics II
• Connect a diagnostic scanner to check for additional codes.
• Inspect the battery pack for physical damage or swelling.
• Measure the thickness of the battery cells.
• Replace the affected battery cell or module.
• Ensure the battery management system is functioning correctly.
• Check and update the vehicle's software if necessary.
• OBD-II scanner
• Digital caliper or thickness gauge
• Battery cell replacement tools
$500 - $2000
Difficult
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly monitor battery health.
• Avoid extreme temperature conditions.
• Follow proper charging procedures.
Battery Management System Issue
• Have the vehicle inspected by a professional as soon as possible.
• Avoid driving long distances until the issue is resolved.
Battery pack issues may be covered under the vehicle's warranty, especially if the vehicle is relatively new.
This code has become more common as hybrid and electric vehicles have become more prevalent, highlighting the importance of battery health monitoring.
High – Battery issues can lead to reduced performance and potential safety hazards.
Driving with a faulty battery can be dangerous and may lead to further damage to the vehicle.
• Vehicle in a safe, stationary position.
• Battery at normal operating temperature.
The battery pack is usually located under the vehicle floor or in the trunk area.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code as it can lead to further damage or safety issues.
Q: How can I prevent this issue?
A: Regular maintenance and proper charging habits can help prevent battery issues.
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