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P0EEE

Hybrid/EV Battery Discharge Circuit Performance

The HV battery discharge circuit performance is outside calibration. Discharge resistor or contactor fault.

  • Check engine light: Yes
  • Emissions related: No
  • Repair difficulty: hard

Symptoms

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

Common causes

Ordered by how often each turns out to be the cause.

  • Discharge resistor value driftedCommon
  • Discharge contactor agedPossible
  • Pack cell imbalance approaching service thresholdLess likely

Parts involved

  • Hv Battery Discharge Circuit
  • Discharge Resistor
  • Bms

P0EEE is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.