YANMAR-P0205 serious Yanmar ›

Injector Circuit - Cylinder 5

The YANMAR-P0205 (Yanmar) diesel fault code means: Injector Circuit - Cylinder 5. This is a serious severity code.

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Keep driving?
Limited driving only
DIY difficulty
intermediate
Estimated cost
$250-$800
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Common Symptoms

  • Misfire cyl 5, rough idle on 6-cyl Yanmar 6LY marine

Probable Causes (Ranked by Likelihood)

  • Injector harness Likely
  • Failed injector Possible

Frequently Asked Questions

What is Yanmar code P0205?

Yanmar P0205: Injector Circuit - Cylinder 5.

Can I keep operating with Yanmar code P0205?

Limited operation only -- finish task then shut down.

How much does Yanmar P0205 cost to fix?

Typical cost: $250-$800. Yanmar SmartAssist / YDT diagnostic software is often required.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Ohm-test injector 5.

  2. Swap with adjacent cylinder to verify.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J2012Diagnostic Trouble Code Definitions (defines P0205 as a generic OBD-II code)

P0205 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

Gas / Automotive (OBD-II) Generic OBD-II definition for P0205 Duramax serious Injector Circuit / Open — Cylinder 5 Hino serious Injector Circuit Cylinder 5 MaxxForce serious Injector Circuit Cylinder 5 Power Stroke serious Injector Circuit Malfunction - Cyl 5

Commonly Affected Vehicles

  • Hunter / Beneteau / Catalina sailboats with Yanmar 3JH / 4JH
  • Trawlers with Yanmar 6LY / 6LF series
  • Yachts with Yanmar 8LV / 6LY400 common-rail marine diesels
  • Workboats with Yanmar 4LV / 4JH series marine propulsion

Related Codes

YANMAR-P0201

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More Yanmar codes → Diesel home All diesel codes Heavy-duty Guides

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