OBD-II code · Powertrain (generic)

P0C15 Drive Motor B Inverter Phase V Over Temperature

The inverter phase V of drive motor B reports junction temperature above the protection threshold. Sustained high phase current.

Is it safe to drive with P0C15?

The car may go into limp mode (reduced power). Get it diagnosed before a long trip.

Common causes

  • Most likelySustained phase overload
  • PossibleLocal cooling failure

Symptoms

  • EV/hybrid system warning light on
  • Reduced motor power or torque
  • Possible limp mode or vehicle shutdown

Repair at a glance

Difficulty
Hard
DIY friendly
Best left to a mechanic
Typical labour
3–14 h
Emissions test
Usually unaffected
Parts involved
Drive Motor B Inverter Phase V

Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.