Powertrain
generic / SAE
P2AA8
Engine Coolant Bypass Valve B Position Sensor Range/Performance
The engine coolant bypass valve B position signal does not match plausibility checks against related signals. Sensor drift.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberA / A8
Possible causes
- Sensor characteristic drifted high
- Sensor mounting displaced from reference path medium
- Sensor element aged beyond calibration window low
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–700 €
- Estimated time: 0.5–3 h
- Component: engine coolant bypass valve b position sensor
- Component: wiring harness
- Component: ecm
- MIL / check engine light
Sources
References
sae:J2012