P0DBA code meaning
Hybrid/EV Battery Cell Balancing Circuit D Stuck Off
Powertrain system Generic code P0Dxx codes Check engine light
What P0DBA means
P0DBA: circuit D refuses to bleed. Toshiba's patent US20130026994A1 lists an open balancing terminal as one of the faults a monitoring chip should report, and this is the typical root of a stuck-off result. Because no charge is taken away from the high cells in group D, the pack's top end is governed by them; the charger and the controller stop earlier and the displayed range creeps down. The fault rarely causes a sudden breakdown. CARB 13 CCR 1968.2 requires balancing to stay functional. Ford uses P0DBA in its hybrid BECM (OBD summary 2015); the stuck-off decision comes from comparing the six cells of circuit D with the pack average at power-up, 75 mV being the limit. The always-on opposite is P0DB9, the overall verdict P0DAB.
P0DBA at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor2 to 8 hours
- Clears after repairAfter a drive cycle
Symptoms of P0DBA
- MIL and battery warning
- Range slowly decreasing, charging finishing early
Common causes of P0DBA
- Most likelyOpen balancing terminal or cell tap in group D
- PossibleBleed resistor of circuit D open
- Less likelyBalancing transistor of circuit D failed open
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery cell balancing circuit dBms
What each part of P0DBA means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| BA | The exact fault in that area. |
What to do next
- Note P0DBA and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0DBA
What does P0DBA mean?
P0DBA means "Hybrid/EV Battery Cell Balancing Circuit D Stuck Off". P0DBA: circuit D refuses to bleed. It is a generic code, so it means the same on every make.
Is it safe to drive with P0DBA?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0DBA fail an emissions test?
Yes, it can. P0DBA is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0DBA to fix?
Difficulty: workshop only. A typical repair takes 2 to 8 hours of work. This is a job for a workshop.
Will P0DBA clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.