P2CD3Hybrid/EV Battery Pack N Deterioration
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2CD3 closes the lettered deterioration series: N is the fourteenth section of a drive battery whose management assesses each section's condition separately. When it sets, section N can no longer hold or release the energy expected of it, even though wiring and sensors may be intact. No manufacturer documents P2CD3 publicly, and no published battery reaches fourteen individually rated groups; Audi's Q5 PHEV stops at group 8 (P2CCD). CARB obliges diagnostics of storage parts such as cells to name the smallest unit that can be swapped; a pack split this finely would reach codes up to here. Distinguish it from P0BBD, which reports a voltage spread between cells, and from the whole-pack code P0A7F. Typical effects are the MIL, reduced electric range and at times limited power.
- What you may notice
- MIL or hybrid warning
- Electric range clearly reduced
- Drive power limited at times
- Likely causes
- LikelyCells in section N aged beyond the acceptance limit
- PossibleEarlier replaced neighbour modules leave section N as the weak link
- RareBattery controller misjudges section N after a reset or update
- 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: €400 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.