OBD Codes List

Diagnostic reference · P2712

P2712

Hydraulic Power Unit Leakage

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P2712 means Hydraulic Power Unit Leakage.

Check these first

  • Low or dirty transmission fluid
  • Internal leak in the hydraulic power unit
  • Leaking transmission cooler lines
  • Worn seals or gaskets in the transmission
  • Blocked fluid passages

What to do next

  1. Check transmission fluid level and condition
  2. Inspect the hydraulic power unit and cooler lines for leaks
  3. Read transmission line pressure live data
  4. Look for worn seals or gaskets
  5. Service the fluid and filter
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.