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P094D

Hydraulic Pump Over Temperature

The hydraulic pump reports a over temperature condition. Pump operation is impaired.

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

Symptoms

  • Check engine or transmission warning light on
  • Harsh, delayed, or missing shifts
  • Possible limp mode (locked in one gear)
  • Slipping or shuddering during gear changes

Common causes

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

  • Sustained pump loadCommon
  • Ambient temperature highPossible

Parts involved

  • Hydraulic Pump
  • Wiring Harness
  • TCM

P094D 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.