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 pump that helps cool down the electronics in a hybrid or electric car is not working properly. It's like a fan that's supposed to keep your computer cool but has stopped spinning.
The P2E49 code indicates that the electronics coolant pump, specifically Pump B, in a hybrid or electric vehicle is not operating as expected. This pump is crucial for maintaining the temperature of the vehicle's electronic components.
The electronics coolant pump B is responsible for circulating coolant to dissipate heat from the electronic components in a hybrid or electric vehicle. If the pump is stuck or stalled, it can lead to overheating of these components, potentially causing damage or reduced efficiency.
• Warning light on the dashboard
• Overheating of electronic components
• Reduced vehicle performance
• Mechanical failure of the pump
• Electrical issue with the pump motor
• Blockage in the coolant lines
Coolant: A fluid used to transfer heat away from engine components.
Stalled: When a component stops working or moving as it should.
• Check for any warning lights or error messages on the dashboard.
• Inspect the coolant pump and associated wiring for any visible damage.
• Test the pump operation using diagnostic tools.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring or connectors.
• Clear any blockages in the coolant lines.
• OBD-II scanner
• Multimeter
• Coolant system pressure tester
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the coolant system
• Periodic inspection of the pump and wiring
• Keeping the coolant at recommended levels
Cooling System Issue
• Do not ignore the warning light; address the issue promptly.
• Avoid driving the vehicle if overheating occurs.
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, highlighting the importance of proper cooling system maintenance.
High – Overheating can cause serious damage to the vehicle's electronics.
Driving with an overheating vehicle can be dangerous and may lead to further damage or safety hazards.
• Vehicle at operating temperature
• Coolant system fully pressurized
The electronics coolant pump is typically located near the vehicle's battery or electronic control unit.
Q: Can I drive my car with this code?
A: It's not recommended to drive with this code active, as it could lead to overheating and damage.
Q: How often should I check my coolant system?
A: Regularly check your coolant system during routine maintenance, or at least every 6 months.
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