Powertrain, generic

P0EDD Hybrid/EV Battery Pack B Deterioration

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P0EDD is the state-of-health verdict for the second section of a traction battery: section B has lost so much capacity or gained so much internal resistance that it falls below the maker's limit. P0A7F covers section A, P0EDE to P0EE1 sections C to F. Audi counts the Q5 PHEV (2020-2024) battery in groups and names P0EDD00 as group 2 deterioration in the battery management unit 008C; with the MIL on and guided fault finding silent, TSB 2079556/1 says to renew the module named by the entry. FCA uses the code on the Pacifica Hybrid: 08-299-25 extends warranty and replaces the 400 V pack, while a 2025 STAR case first checks fuses, wiring and BPCM software, then resets P0EDD in the BPCM. On the 2021 Wrangler, 08-168-23 calls it a false MIL fixed by BPCM software.

Likely causes

Battery module or cell group in section B aged beyond its limit
Battery controller software misjudging state of health (FCA reflash cases)
Pack defect covered by a warranty extension (Pacifica Hybrid)

Symptoms

  • MIL or hybrid system warning on
  • Noticeably shorter electric range
  • Engine runs more often, less electric assist

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–12,000
Time0.3–8 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

hv battery pack bbattery energy control module

Related codes

P0A7FP0EDEP0EDFP0BBEP0A80

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.