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 heater that keeps the car's battery warm. It's like when your electric blanket doesn't work because there's a problem with the wires.
The P0E14 code indicates that the control circuit for the hybrid or electric vehicle's battery pack coolant heater is experiencing a high voltage condition.
The P0E14 code is set when the Powertrain Control Module (PCM) detects a high voltage condition in the control circuit of the battery pack coolant heater. This component is responsible for maintaining the optimal temperature of the battery pack by heating the coolant that circulates around it. A high voltage condition could indicate a short circuit, a faulty control module, or an issue with the wiring.
• Check Engine Light is on
• Reduced battery performance
• Possible overheating of the battery pack
• Faulty battery pack coolant heater
• Short circuit in the wiring
• Defective control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the battery pack coolant heater for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the battery pack coolant heater if faulty.
• Replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain the vehicle's electrical system.
• Ensure proper coolant levels and quality.
• Avoid extreme temperature conditions when possible.
Electrical Circuit Issue
• Avoid driving in extreme temperatures until repaired.
• Get the vehicle inspected by a professional mechanic.
Repairs may be covered under the vehicle's powertrain warranty if applicable.
This code has become more common with the increase in hybrid and electric vehicles, highlighting the importance of maintaining battery temperature control systems.
Moderate – It should be addressed soon to prevent battery damage.
Driving with this issue may reduce battery efficiency and could lead to further damage.
• Vehicle at operating temperature
• Battery pack coolant heater activated
The battery pack coolant heater is typically located near the battery pack, often in the rear of the vehicle.
Q: Can I drive my car with this code?
A: It's best to avoid driving until the issue is fixed to prevent battery damage.
Q: How do I reset the code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code.
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