• Check Engine Light illuminated
• Overheating engine
• Poor engine performance
• Faulty coolant degassing valve
• Wiring issues such as shorts or opens in the circuit
• Faulty ECM or control module
ECM: Engine Control Module, the computer that controls the engine.
Coolant: A fluid that helps keep the engine from overheating.
• P2681
• P2682
Coolant Degassing Valve Control Circuit High
This code means that the car's computer has detected a problem with the part that helps remove air bubbles from the engine's coolant. It's like if a straw had a hole and couldn't suck up your drink properly.
The P2680 code is triggered when the engine control module (ECM) detects a high voltage condition in the coolant degassing valve control circuit.
The coolant degassing valve is responsible for removing air pockets from the coolant system to ensure efficient cooling. A high voltage condition in its control circuit indicates a possible short circuit, open circuit, or a malfunctioning valve.
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connections to the coolant degassing valve.
• Test the coolant degassing valve for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the coolant degassing valve if faulty.
• Replace or reprogram the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Ford Focus
• Chevrolet Cruze
• Volkswagen Jetta
• Regularly inspect and maintain the cooling system.
• Ensure proper coolant levels are maintained.
• Perform regular vehicle diagnostics.
Sensor Issue
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Monitor engine temperature closely.
Check your vehicle's warranty for coverage on emissions-related components.
This code has been associated with vehicles that have complex cooling systems and is often related to electrical issues.
Moderate – While the vehicle may still be drivable, ignoring the issue can lead to engine overheating and more severe damage.
Driving with a malfunctioning cooling system can lead to engine damage and potential safety hazards.
• Engine at operating temperature
• Coolant system pressurized
The coolant degassing valve is typically located near the radiator or coolant reservoir.
Q: Can I drive with a P2680 code?
A: It's not recommended as it can lead to engine overheating.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
