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P2E7A

Hybrid/EV Electronics Coolant Pump C Overspeed

Hybrid/EV electronics coolant pump C exceeds the calibrated maximum speed. Mechanical load lost or rotor position offset.

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

Common causes

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

  • Mechanical coupling brokenCommon
  • Air pocket in coolant loopPossible

Parts involved

  • Hybrid Electronics Coolant Pump C

P2E7A 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.