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 something is wrong with the part of the car that helps keep the battery cool. It's like when a fan stops working and your computer gets too hot.
The control circuit for the coolant control valve in the hybrid or electric vehicle's battery pack is experiencing high current or temperature.
The P0E20 code indicates that the control circuit for the battery pack coolant control valve A in a hybrid or electric vehicle is drawing too much current or is operating at a temperature that is too high. This could be due to a fault in the valve itself, the wiring, or the control module.
• Check Engine Light is on
• Overheating of the battery pack
• Reduced vehicle performance
• Faulty coolant control valve
• Wiring issues in the control circuit
• Malfunctioning control module
Coolant: A fluid used to keep the engine or battery pack from overheating.
Control Circuit: An electrical circuit that manages the operation of a component.
• Check for any stored codes and freeze frame data
• Inspect the wiring and connectors for damage
• Test the coolant control valve for proper operation
• Replace the faulty coolant control valve
• Repair or replace damaged wiring
• Replace the control module if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper coolant levels
• Inspect wiring for wear and tear
Hybrid/EV System Issue
• Avoid driving in extreme temperatures until fixed
• Get the vehicle checked by a professional
• Monitor for any unusual noises or performance issues
Check with your vehicle manufacturer for warranty coverage on hybrid/EV components.
This code has become more common as hybrid and electric vehicles have increased in popularity.
Moderate – Should be addressed soon to prevent potential battery damage.
Ignoring this issue may lead to further damage and potential safety hazards.
• Vehicle at operating temperature
• Battery pack in use
The coolant control valve is typically located near the battery pack in hybrid or electric vehicles.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to battery overheating and potentially expensive repairs.
Q: Can I drive my car with this code?
A: It's best to get it checked soon to avoid further issues, but short trips may be okay if the vehicle isn't showing severe symptoms.
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