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 has detected a problem with the electric pump that helps cool the car's electronics. It's like if a fan in your computer stopped working, things could get too hot.
The P2E44 code is triggered when the control circuit for the hybrid or electric vehicle's electronics coolant pump B is reading a high voltage, indicating a possible electrical issue.
The Hybrid/EV Electronics Coolant Pump B is responsible for circulating coolant to maintain optimal temperatures for the vehicle's electronic components. A 'Control Circuit High' code suggests that the voltage in the control circuit is higher than expected, which could be due to a short circuit, wiring issues, or a faulty pump.
• Check Engine Light is on
• Overheating of electronic components
• Reduced vehicle performance
• Faulty coolant pump B
• Short circuit in the wiring
• Faulty control module
OBD-II: On-Board Diagnostics, a standardized system in vehicles for diagnosing problems.
Coolant Pump: A device that circulates coolant to manage temperatures in the vehicle.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connections to the coolant pump
• Test the voltage levels in the control circuit
• Replace the faulty coolant pump
• Repair or replace damaged wiring
• Replace the control module if necessary
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure proper coolant levels
• Inspect wiring for wear and tear
Electrical Circuit Issue
• Avoid driving the vehicle until the issue is fixed to prevent overheating.
• Consult a professional mechanic for accurate diagnosis and repair.
Check your vehicle's warranty; components like the coolant pump may be covered under the powertrain or hybrid system warranty.
This code has become more common with the increase in hybrid and electric vehicles, as they rely heavily on electronic systems.
High – This issue can lead to overheating and potential damage to electronic components if not addressed promptly.
Driving with this code active can lead to overheating, which may cause damage to the vehicle and poses a safety risk.
• Vehicle must be in a safe environment
• Engine should be off before inspecting wiring
The electronics coolant pump is typically located near the hybrid or EV battery pack 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 can lead to overheating and damage.
Q: How do I reset the code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is fixed first.
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