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P0C93

Hybrid/EV Battery Temperature Sensor K Range/Performance

The HV battery temperature sensor K reports a range/performance fault. Cell-group temperature monitoring impaired on this channel.

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

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.

  • Sensor characteristic driftedCommon
  • Sensor mounting displacedPossible
  • Sensor element aged beyond calibration windowLess likely

Parts involved

  • Hv Battery Temp Sensor K
  • Wiring Harness
  • Bms

P0C93 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.