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

P0C7B

Generator Inverter Voltage Too High

The generator inverter DC-link voltage exceeds the protection threshold. Regenerative braking overshoot or BMS regulation fault.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberC / 7B

Possible causes

  • Regenerative braking overshoot high
  • BMS regulation outside calibration medium

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 600–4000 €
  • Estimated time: 3–12 h
  • Component: generator inverter
  • Component: dc link capacitor
  • 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