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 there's a problem with the pump that helps keep the battery cool. It's like when a fan stops working and your computer overheats.
The code indicates a performance issue with the control of the second coolant pump responsible for cooling the hybrid or electric vehicle's battery pack.
P0E1D is triggered when the control module detects that the performance of the coolant pump B, which is critical for maintaining the optimal temperature of the hybrid/EV battery pack, is not within the expected range. This could be due to electrical issues, mechanical failures, or control circuit problems.
• Warning light on the dashboard
• Reduced battery performance
• Overheating of the battery pack
• Faulty coolant pump B
• Electrical circuit issues
• Control module malfunction
Coolant Pump: A device that circulates coolant to remove heat from the battery.
Control Module: The computer that manages various functions of the vehicle.
• Check for any loose or corroded electrical connections.
• Test the coolant pump B for proper operation.
• Inspect the control module for faults.
• Replace or repair faulty coolant pump B.
• Fix any electrical wiring issues.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly check coolant levels.
• Ensure proper maintenance of the cooling system.
• Inspect electrical connections periodically.
Control Performance Issue
• Avoid driving in extreme temperatures until repaired.
• Get the vehicle inspected by a professional.
• Monitor the vehicle's performance closely.
Check with the vehicle manufacturer for warranty coverage on hybrid/EV components.
This code has become more common with the increased use of hybrid and electric vehicles, highlighting the importance of cooling systems in battery management.
Moderate – It should be addressed soon to prevent potential battery damage.
Ignoring this code could lead to battery damage, which may void warranties and pose safety risks.
• Vehicle at operating temperature
• Battery under load conditions
The coolant pump B is typically located near the hybrid/EV battery pack, often at the rear of the vehicle.
Q: Can I drive with the P0E1D code?
A: It's not recommended to drive for long periods as it could lead to battery overheating.
Q: What happens if I ignore this code?
A: Ignoring it may cause battery damage and reduced vehicle performance.
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