POWERSTROKE-P0605 moderate Power Stroke ›

PCM Read Only Memory (ROM) Error

The POWERSTROKE-P0605 (Power Stroke) diesel fault code means: PCM Read Only Memory (ROM) Error. This is a moderate severity code.

My Garage →
Keep driving?
No — stop driving
DIY difficulty
advanced
Estimated cost
$700-$1,500
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What Are the Symptoms of POWERSTROKE-P0605?

  • Intermittent no-start
  • Random stalling
  • CEL

What Causes POWERSTROKE-P0605? (Most Likely First)

  • Internal PCM failure Very Likely
  • Low/unstable PCM supply voltage Possible

Can I Still Drive with POWERSTROKE-P0605?

No — stop driving. POWERSTROKE-P0605 is rated moderate severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.

Frequently Asked Questions

What is P0605 on a 7.3L Power Stroke?

P0605 on a 7.3L Power Stroke (1994-2003) indicates: PCM Read Only Memory (ROM) Error. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.

Can I drive with P0605 on my Power Stroke?

No. Stop driving and arrange for towing. Continued operation risks serious engine or emissions system damage.

How much does it cost to fix P0605?

Repair cost is typically $700-$1,500 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose POWERSTROKE-P0605?

  1. Measure PCM battery and ignition supply voltage -- must be stable 12V+.

  2. If power is good and code returns, PCM requires replacement + programming.

Sources 1

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

  • SAE J2012Diagnostic Trouble Code Definitions (defines P0605 as a generic OBD-II code)

P0605 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 P0605 Duramax critical Internal Control Module Read Only Memory Error

Which Vehicles Commonly Get POWERSTROKE-P0605?

  • 1994.5-1997 Ford F-250/F-350 7.3L Power Stroke
  • 1999-2003 Ford F-250/F-350 Super Duty 7.3L Power Stroke
  • 1999-2003 Ford F-450/F-550 Super Duty 7.3L Power Stroke
  • 1994.5-2003 Ford E-350/E-450 7.3L Power Stroke
  • 2000-2003 Ford Excursion 7.3L Power Stroke

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More Power Stroke codes → Diesel home All diesel codes Heavy-duty Guides

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