OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P0DC5

Hybrid/EV Battery Cell Balancing Circuit G Stuck On

The cell balancing circuit G reports a stuck on condition. Cell-group voltage equalization may be impaired on this channel.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberD / C5

Possible causes

  • Balancing transistor stuck on high
  • Driver IC failure medium
  • Carbon or debris buildup preventing free movement low

Symptoms

  • EV/hybrid system warning light on
  • Reduced power output or limp mode
  • Charging may fail or be slowed
  • Reduced electric range

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 400–3000 €
  • Estimated time: 3–10 h
  • Component: hv battery cell balancing circuit g
  • Component: bms
  • MIL / check engine light
  • limp mode possible

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication