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P2E2B

Drive Motor A Excitation Current Too High

The drive motor A excitation current exceeds the calibrated maximum. Field excitation cannot be measured or controlled reliably.

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

Symptoms

  • EV/hybrid system warning light on
  • Reduced motor power or torque
  • Possible limp mode or vehicle shutdown

Common causes

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

  • Excitation winding shortCommon
  • Driver faultPossible

Parts involved

  • Drive Motor A Excitation Circuit
  • Drive Motor A
  • Hybrid Control Module

P2E2B 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.