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 a part in the car that helps keep the battery cool is stuck and not working right.
The code indicates that the control valve responsible for managing the flow of coolant to the hybrid or electric vehicle's battery pack is stuck in the 'on' position.
The Hybrid/EV Battery Pack Coolant Control Valve A is designed to regulate the flow of coolant to ensure the battery pack maintains an optimal temperature. When this valve is stuck in the 'on' position, it can lead to improper cooling, potentially causing the battery to overheat or operate inefficiently.
• Warning light on the dashboard
• Overheating of the battery pack
• Reduced vehicle performance
• Faulty coolant control valve
• Electrical issues such as a short circuit
• Malfunctioning control module
OBD-II: On-Board Diagnostics II, a standardized system for self-diagnostics in vehicles.
Coolant: A fluid used to regulate the temperature of the engine and other components.
• Check for any error codes using an OBD-II scanner.
• Inspect the coolant control valve for physical damage or blockage.
• Test the electrical connections to the valve.
• Replace the faulty coolant control valve.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if necessary.
• OBD-II Scanner
• Multimeter
• Wrench set
$200 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper coolant levels
• Inspect electrical connections periodically
Cooling System Issue
• Do not ignore the warning light on the dashboard.
• Schedule a service appointment promptly to avoid further damage.
Check with the vehicle manufacturer; this issue may be covered under warranty for hybrid or EV components.
This code has become more common with the rise of hybrid and electric vehicles, as cooling systems for battery packs are critical for performance.
High – Addressing this issue promptly is important to prevent battery damage.
Operating a vehicle with a malfunctioning cooling system can lead to safety risks and potential legal liabilities.
• Vehicle at operating temperature
• Battery under load conditions
The coolant control valve is typically located near the battery pack, often accessible from the engine compartment or under the vehicle.
Q: Can I drive my car with this code?
A: It's not recommended as it could lead to battery overheating and damage.
Q: How often should the coolant control valve be checked?
A: It should be inspected during regular maintenance intervals or if any warning lights appear.
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