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 a sensor in the car that checks how hot the battery charger connection is, isn't working right. It's saying the temperature is too low, which might not be true.
The P2E4C code is triggered when the vehicle's control module detects a low voltage signal from the battery charger coupler temperature sensor C, indicating a possible issue with the sensor or its circuit.
The Battery Charger Coupler Temperature Sensor C is responsible for monitoring the temperature of the battery charger coupler. A 'Circuit Low' code indicates that the sensor is reporting a lower voltage than expected, which can be due to a malfunctioning sensor, wiring issues, or a problem with the control module.
• Check engine light on
• Battery charging issues
• Possible overheating of the battery charger coupler
• Faulty temperature sensor
• Wiring issues or poor connections
• Faulty control module
OBD-II: On-Board Diagnostics, a system for self-diagnosing and reporting vehicle issues.
Multimeter: A tool used to measure voltage, current, and resistance in electrical circuits.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the temperature sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Volt
• Nissan Leaf
• Toyota Prius Plug-in
• Regular maintenance checks of the electrical system
• Ensure proper connection of battery charger coupler
• Avoid exposure of electrical components to moisture
Sensor Issue
• Do not ignore the check engine light.
• Get the vehicle checked by a professional if unsure.
• Avoid charging the vehicle until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on electrical components.
This code has been reported in vehicles with hybrid and electric systems, indicating a recurring issue with temperature sensors.
Moderate – It should be addressed soon to prevent potential charging issues.
Driving with a faulty temperature sensor can lead to battery charging issues and potential overheating, which may be hazardous.
• Vehicle is in a safe, stationary position.
• Battery charger is connected and operating.
The temperature sensor is typically located near the battery charger coupler, often in the engine bay or under the vehicle.
Q: Can I drive my car with this code?
A: It's not recommended as it may affect battery charging and could lead to overheating.
Q: How do I reset the check engine light?
A: After fixing the issue, use an OBD-II scanner to clear the code.
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