What does code P0DDA mean?

Q: What does code P0DDA mean?

Hybrid/EV Battery Cell Balancing Circuit L Stuck Off. P0DDA indicates that the battery management system has detected a fault in the cell balancing circuit for battery cell group 'L', where the circuit is stuck in the off state and cannot bleed energy from that cell. The computer monitors the balancing circuit's switching device and the resulting cell voltage response, and it sets this code when the expected voltage drop does not occur during a commanded balancing event.

DTC codes / P0Dxx · Hybrid propulsion / P0DDA

P0DDAHybrid/EV Battery Cell Balancing Circuit L Stuck Off

P0DDA indicates that the battery management system has detected a fault in the cell balancing circuit for battery cell group 'L', where the circuit is stuck in the off state and cannot bleed energy from that cell. The computer monitors the balancing circuit's switching device and the resulting cell voltage response, and it sets this code when the expected voltage drop does not occur during a commanded balancing event.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

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.