P0DCE code meaning
Hybrid/EV Battery Cell Balancing Circuit I Stuck Off
Powertrain system Generic code P0Dxx codes Check engine light
What P0DCE means
P0DCE means the bleed path of group I does not respond to a balancing request. Ford lists it in the 2019 OBD summary for its full and plug-in hybrids, where the BECM discharges only the highest cells to match the rest and runs this check for 100 ms at power-up before the contactors close. Because the code concerns a switch that never conducts, nothing happens suddenly while driving. The penalty grows from charge to charge: the Intersil application note AN141 explains that in a series string the unbalanced cells hit full charge before the others and the weakest cell then limits what the pack can deliver. For a plug-in that means less electric range. The fault has to be found under CARB's hybrid rules. The stuck-on opposite is P0DCD.
P0DCE at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor1.5 to 8 hours
- Clears after repairAfter a drive cycle
Symptoms of P0DCE
- Electric range decreases over many charging cycles
- Cells of group I highest at the end of charging
- Check engine light without noticeable effect while driving
Common causes of P0DCE
- Most likelyOpen bleed resistor in circuit I
- PossibleBalancing switch of group I that no longer closes
- Less likelyCell tap of group I loose at the busbar
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 iBms
What each part of P0DCE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| CE | The exact fault in that area. |
What to do next
- Note P0DCE 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 P0DCE
What does P0DCE mean?
P0DCE means "Hybrid/EV Battery Cell Balancing Circuit I Stuck Off". P0DCE means the bleed path of group I does not respond to a balancing request. It is a generic code, so it means the same on every make.
Is it safe to drive with P0DCE?
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 P0DCE fail an emissions test?
Yes, it can. P0DCE 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 P0DCE to fix?
Difficulty: workshop only. A typical repair takes 1.5 to 8 hours of work. This is a job for a workshop.
Will P0DCE 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.