Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means there's a problem with the car's system that helps manage heat. It's like when a computer gets too hot and needs to cool down, but something is wrong with the part that tells it to cool down.
The P14EC code indicates that the voltage in the heat management module circuit is higher than the expected range.
The heat management module is responsible for regulating the temperature of various engine components to ensure optimal performance and efficiency. A 'Circuit High' error suggests that there is an abnormally high voltage detected in the circuit, which could be due to a short circuit, faulty wiring, or a malfunctioning module.
• Check Engine Light is on
• Engine overheating
• Reduced fuel efficiency
• Faulty heat management module
• Short circuit in the wiring
• Poor electrical connections
OBD-II: On-Board Diagnostics, a standardized system for self-diagnosing and reporting vehicle issues.
Heat Management Module: A component that regulates the temperature of engine parts to ensure efficient operation.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the heat management module for proper function.
• Repair or replace damaged wiring or connectors.
• Replace the heat management module if faulty.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Chevrolet Malibu
• Buick Regal
• Cadillac ATS
• Regular maintenance checks
• Ensure proper electrical connections
• Avoid overheating the engine
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you're unsure.
• Monitor engine temperature regularly.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with vehicles that have complex heat management systems, particularly in newer models.
Moderate – Address the issue soon to prevent potential engine damage.
Driving with an overheating engine can cause severe damage and may be unsafe.
• Engine at operating temperature
• Vehicle stationary
The heat management module is typically located near the engine or radiator.
Q: Can I drive with a P14EC code?
A: It's not recommended to drive for extended periods with this code, as it could lead to engine overheating.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or it may reset after several driving cycles if the issue is resolved.
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