P0DC2Hybrid/EV Battery Cell Balancing Circuit F Stuck Off
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- With P0DC2 the controller concludes that circuit F does not bleed when asked to, so the fullest cells of group F are never trimmed. Ford's 2014 hybrid OBD summary applies the same 75 mV deviation test over the six cells of each circuit as for the stuck-on code, but the 2014 to 2018 versions want the deviation seen at two power-ups in a row, before the contactors close. The practical cost lies in charging: the group that cannot shed charge reaches its upper limit first and stops the charge for the whole pack. An Intersil (now Renesas) application note estimates that lithium cells 150 mV apart at full charge can lose up to a quarter of usable pack capacity. CARB's section 1968.2 counts the missing response as a malfunction. The always-on opposite is P0DC1.
- What you may notice
- Charging ends earlier than usual, displayed full charge gives less range
- Cells of group F remain highest after charging
- Check engine light, usually without noticeable driving change
- Likely causes
- LikelyBleed resistor of group F burnt open
- PossibleBleed transistor of circuit F no longer conducting
- RareLoose cell tap or connector pin on the balancing lead
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €4,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.