What Does P267F Mean?
The coolant degassing valve control circuit is reading abnormally high voltage or resistance. This valve removes trapped air from the cooling system on certain vehicles; a high circuit fault prevents proper valve operation.
Common Causes
35%
Open circuit or broken wire in degassing valve control circuit
30%
Failed coolant degassing valve solenoid (open coil)
20%
Disconnected or damaged valve connector
10%
Poor ground connection at valve or PCM
5%
PCM driver circuit failure
Diagnostic Steps
1
Step 1: Locate coolant degassing valve and inspect electrical connector for damage or disconnection
2
Step 2: Disconnect valve and measure solenoid resistance; typical specification is 10-40 ohms
3
Step 3: Check for battery voltage at valve connector with key on (depending on system design)
4
Step 4: Test continuity of control circuit from valve connector back to PCM
5
Step 5: Apply direct battery voltage to valve to verify mechanical operation and audible click
Estimated Repair Cost
$150 - $600
Parts + labor, varies by vehicle and location
The coolant degassing valve control circuit is reading abnormally high voltage or resistance. This valve removes trapped air from the cooling system on certain vehicles; a high circuit fault prevents proper valve operation.
The most common cause of P267F (P2680 Coolant Degassing Valve Control Circuit High) is: Open circuit or broken wire in degassing valve control circuit
Typical repair costs for P267F range from $150 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Generally safe to drive but may experience inadequate cabin heating and potential air pocket formation in cooling system. Monitor temperature gauge for overheating.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P267F to identify the root cause.
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Quick Info
Category
Powertrain
System
Cooling System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
