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 has detected that the pump that helps cool the battery is getting too hot or using too much electricity.
The vehicle's control system monitors the coolant pump's operation to ensure it functions within the specified temperature and current range. If the pump's current draw or temperature exceeds these limits, the system triggers this code.
The P0E1E code indicates that the control circuit for the Hybrid/EV Battery Pack Coolant Pump B is drawing too much current or operating at too high a temperature. This could be due to a malfunctioning pump, wiring issues, or a faulty control module.
• Check engine light is on
• Overheating of the battery pack
• Reduced vehicle performance
• Faulty coolant pump
• Wiring issues in the control circuit
• Defective control module
Coolant Pump: A device that circulates coolant to manage the temperature of the battery pack.
Control Circuit: Electrical pathway that manages the operation of a component.
• Inspect the coolant pump and wiring for damage.
• Check the control module for faults.
• Measure the current draw of the coolant pump.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring.
• Replace the control module if necessary.
• Multimeter
• Diagnostic scanner
• Wrench set
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect the cooling system.
• Ensure coolant levels are maintained.
• Perform routine vehicle diagnostics.
Cooling System Issue
• Do not ignore the check engine light.
• Have the vehicle inspected by a professional.
• Avoid driving in extreme temperatures until repaired.
Check with the manufacturer as hybrid systems may have extended warranties.
This code has become more common with the increase in hybrid and electric vehicles, highlighting the importance of cooling systems in these cars.
High – Address promptly to avoid potential battery damage.
Operating with a malfunctioning cooling system can lead to battery damage and safety risks.
• Vehicle must be running.
• Coolant pump must be activated.
The coolant pump is typically located near the battery pack, often in the rear of the vehicle.
Q: Can I drive with this code?
A: It's not recommended as it can lead to battery overheating and damage.
Q: How can I prevent this issue?
A: Regular maintenance and inspections of the cooling system can help prevent this issue.
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