Powertrain
generic / SAE
P2678
Coolant Degassing Valve Control Circuit / Open
The controller cannot drive the coolant degassing valve. Air pockets in the cooling system can form and cause local overheating.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 78
Possible causes
- Open coil in degassing valve high
- Broken control wire medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 120–700 €
- Estimated time: 0.8–3 h
- Component: coolant degassing valve
- Component: solenoid
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012