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P1C2D: Hyundai 8-Speed Wet DCT Electric Oil Pump Fault (P1C2D03)

Severity: high

What it means: A Hyundai-specific code. Hyundai's recall paperwork ties P1C2D03 to a fault in the high pressure electric oil pump of the 8-speed wet dual clutch transmission (DCT). The pump supplies the pressure that works the clutches.

Safe to drive? Not reliably. A failing pump can cause loss of drive power or limp mode. Get it to a Hyundai dealer and check your VIN for recall 22V746000.

Common symptoms

Likely causes, ranked

  1. Failing high pressure electric oil pump in the DCTShop
  2. Wiring or connector to the pumpShop
  3. Transmission control software (TCU) needing the recall updateShop
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Vehicle-specific notes

  • 2019–2022 Hyundai Veloster N: Veloster N owners reported lost even gears and limp mode on cold mornings, and one 2021 owner's oil pump failed after the recall software update. Under Hyundai recall 236 (NHTSA 22V746000), dealers replace the transmission when P1C2D03 is stored. Read the full answer · Source

Answers that mention P1C2D

DIY or shop?

Shop. This is a dealer job, and under recall 22V746000 the transmission is replaced if P1C2D03 is stored.

Before you replace parts

  1. Check your VIN for recall 22V746000 (Hyundai 236) at nhtsa.gov/recalls.
  2. Ask the dealer to read transmission codes and tell you whether P1C2D03 is stored.
  3. Note when the problem happens (cold start, chimes, lost gears).
  4. Don't clear the code before the dealer sees it.

Safety / mechanic note

Losing drive power in traffic can cause a crash. Verify with a mechanic. A code points to a system, not always a specific part.

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Sources