P2BD9
Motor Electronics Coolant Temperature Sensor B Range/Performance
The motor electronics coolant temperature sensor B reports a range/performance condition. Power electronics cooling cannot be regulated reliably.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: easy
Common causes
Ordered by how often each turns out to be the cause.
- Sensor characteristic driftedCommon
- Sensor mounting displacedPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Motor Electronics Coolant Temp Sensor B
- Wiring Harness
- Hybrid Control Module
P2BD9 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.