Skip to content
Book on WhatsApp

P2C67

Hybrid/EV Electronics Coolant Pump A Overspeed

The hybrid electronics coolant pump A 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 A
  • Power Electronics Coolant Loop

P2C67 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.