What does code P2DBA mean?

DTC codes / P2Dxx · Hybrid propulsion / P2DBA

P2DBABattery Charging System B High Voltage Interlock Circuit High

P2DBA indicates that the battery charging system B high voltage interlock circuit is reporting a voltage higher than expected, which the control module interprets as an open or shorted condition in the safety loop. The interlock is a low-current loop that confirms high-voltage connectors and covers are properly seated; a high signal means the module sees the loop as compromised, so it may disable charging or set a service warning.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.