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P2C95

Hybrid/EV Battery Contactor Control Supply Circuit/High

The supply circuit for the hybrid battery contactor control reports a high condition. Contactor coils may not energise as expected.

  • 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.

  • Supply wire shorted to B+Common
  • Alternator regulator overvoltagePossible
  • Pack cell imbalance approaching service thresholdLess likely

Parts involved

  • Hybrid Battery Contactor Control Supply
  • Wiring Harness
  • Bms

P2C95 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.