OBD-II code · Powertrain (generic, extended)
P2BDA Motor Electronics Coolant Temperature Sensor B Circuit Low
The motor electronics coolant temperature sensor B reports a circuit low condition. Power electronics cooling cannot be regulated reliably.
Is it safe to drive with P2BDA?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Motor Electronics Coolant Temp Sensor B, Wiring Harness, Hybrid Control Module
Related codes
- P2BDEMotor Electronics Coolant Temperature Sensor C Circuit Low
- P2BD7Motor Electronics Coolant Pump C Control Performance
- P2BD8Motor Electronics Coolant Temperature Sensor B Circuit
- P2BD9Motor Electronics Coolant Temperature Sensor B Range/Performance
- P2BDBMotor Electronics Coolant Temperature Sensor B Circuit High
- P2BDCMotor Electronics Coolant Temperature Sensor C Circuit
- P2BDDMotor Electronics Coolant Temperature Sensor C Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.