Powertrain
generic / SAE
P2681
Engine Coolant Bypass Valve A Control Circuit / Open
The controller cannot drive the engine coolant bypass valve A. The valve usually routes coolant around the radiator during warm-up; without it warm-up takes longer and emissions during the warm-up phase rise.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 81
Possible causes
- Open coil in bypass valve solenoid high
- Broken control wire medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–900 €
- Estimated time: 1–3.5 h
- Component: coolant bypass valve a
- Component: solenoid
- Component: wiring harness
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012