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 that the pump that helps cool down the electronics in a hybrid or electric car isn't working as well as it should.
The P2E79 code is triggered when the vehicle's control module detects a performance issue with the electronics coolant pump C in hybrid or electric vehicles.
The electronics coolant pump C is responsible for circulating coolant to manage the temperature of electronic components in hybrid or electric vehicles. If the pump's performance is below expected levels, it can lead to overheating of these components, triggering the P2E79 code.
• Warning light on the dashboard
• Overheating of electronic components
• Reduced vehicle performance
• Faulty electronics coolant pump
• Obstructed coolant passages
• Electrical issues such as wiring or connector problems
Coolant: A fluid used to reduce or regulate the temperature of a system.
Hybrid/EV: Vehicles that use a combination of an internal combustion engine and electric propulsion or are fully electric.
• Check for any visible leaks or damage to the coolant pump.
• Inspect electrical connections and wiring for faults.
• Test the operation of the coolant pump.
• Replace the faulty coolant pump.
• Clear any obstructions in the coolant passages.
• Repair or replace damaged wiring or connectors.
• OBD-II scanner
• Multimeter
• Coolant system pressure tester
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect the coolant system for leaks.
• Ensure coolant levels are maintained.
• Schedule regular maintenance for hybrid/EV systems.
Performance Issue
• Do not ignore the warning light; seek professional diagnosis.
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
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 maintaining the cooling systems for electronic components.
High – This issue can lead to overheating and damage to critical electronic components.
Ignoring this code may lead to significant damage to the vehicle's electronic components and could void warranty coverage.
• Vehicle at normal operating temperature
• Coolant system fully pressurized
The electronics coolant pump is typically located near the front of the vehicle, close to the radiator or battery pack in hybrid/EV models.
Q: Can I drive my car with a P2E79 code?
A: It's not recommended to drive your car with this code active, as it may lead to overheating and damage to the vehicle's electronics.
Q: How can I prevent a P2E79 code?
A: Regular maintenance of the coolant system and ensuring proper coolant levels can help prevent this code.
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