Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that helps keep the electronics cool, like a fan for a computer. It's not working right, and the car is letting you know.
The P2E45 code indicates an issue with the enable circuit for the coolant pump that cools the electronic components in a hybrid or electric vehicle.
The P2E45 code is triggered when the Engine Control Module (ECM) or Powertrain Control Module (PCM) detects a malfunction in the enable circuit of the electronics coolant pump B. This pump is responsible for circulating coolant to maintain optimal operating temperatures for the vehicle's electronic systems.
• Illuminated check engine light
• Overheating of electronic components
• Reduced performance of the hybrid/EV system
• Faulty electronics coolant pump B
• Damaged or corroded wiring or connectors
• Failed control module or relay
ECM: Engine Control Module
PCM: Powertrain Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the electronics coolant pump B for proper operation.
• Replace the electronics coolant pump B if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the control module or relay if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular inspection of the cooling system.
• Ensure proper maintenance of electrical connections.
• Monitor coolant levels and quality.
Electrical Circuit Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for an accurate diagnosis.
Check with your vehicle manufacturer for warranty coverage on hybrid/EV components.
This code has become more prevalent with the increase in hybrid and electric vehicle usage, highlighting the importance of maintaining cooling systems for electronics.
High – Failure to address this issue can lead to overheating and potential damage to electronic components.
Driving with an unresolved P2E45 code may lead to vehicle damage or reduced performance. Always address such issues promptly.
• Ensure the vehicle is in a safe and level location.
• Allow the vehicle to reach operating temperature for accurate testing.
The electronics coolant pump B is typically located near the battery or electronic control modules in the engine bay.
Q: Can I drive my car with a P2E45 code?
A: It's not recommended as it may lead to overheating and damage to electronic components.
Q: How do I know if my electronics coolant pump is failing?
A: Symptoms include overheating, reduced performance, and an illuminated check engine light.
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