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 part of the car that helps keep the battery warm isn't working right. It's like when your heater at home doesn't turn on when it's really cold outside.
The P0E13 code indicates a problem with the electrical circuit that controls the heater for the hybrid or electric vehicle's battery pack coolant. The circuit is registering a low voltage, which could mean there's an issue with the wiring, the heater itself, or the control module.
The P0E13 code is triggered when the Powertrain Control Module (PCM) detects a low voltage condition in the control circuit for the battery pack coolant heater. This heater is responsible for maintaining the battery's temperature within optimal limits, especially in cold conditions. A low voltage condition could be caused by a short to ground, an open circuit, or a malfunctioning heater.
• Check Engine Light is on
• Reduced battery performance
• Poor vehicle performance in cold weather
• Faulty battery pack coolant heater
• Open or shorted wiring in the heater circuit
• Faulty PCM or control module
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use a scan tool to verify the code and check for other related codes.
• Inspect the wiring and connectors for the battery pack coolant heater.
• Test the battery pack coolant heater for proper operation.
• Repair or replace any damaged wiring or connectors.
• Replace the battery pack coolant heater if faulty.
• Reprogram or replace the PCM if necessary.
• OBD-II scan tool
• Multimeter
• Wiring diagram
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain the battery cooling system.
• Ensure proper vehicle software updates.
• Avoid extreme temperature exposure.
Electrical Circuit Issue
• Avoid driving in extremely cold conditions until repaired.
• Have the vehicle inspected by a professional mechanic.
• Monitor battery performance for any changes.
Repairs may be covered under the vehicle's powertrain or hybrid system warranty. Check with the manufacturer for specific coverage details.
This code has become more common with the increase in hybrid and electric vehicles, as maintaining battery temperature is crucial for performance and longevity.
Moderate – While the vehicle may still operate, ignoring this issue can lead to reduced battery efficiency and potential long-term damage.
Driving with a malfunctioning battery coolant heater can lead to decreased performance and potential safety risks. It is advisable to address this issue promptly.
• Vehicle must be in a cold environment.
• Battery system must be operational.
The battery pack coolant heater is typically located near the battery pack, often in the rear of the vehicle or under the floor.
Q: Can I drive my car with the P0E13 code?
A: While you may be able to drive, it's not recommended as it can affect battery performance and potentially cause long-term damage.
Q: How can I prevent this issue?
A: Regular maintenance of the battery cooling system and avoiding extreme temperatures can help prevent this issue.
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