POWERSTROKE-P0606 moderate Power Stroke ›

PCM Processor Fault

The POWERSTROKE-P0606 (Power Stroke) diesel fault code means: PCM Processor Fault. This is a moderate severity code.

My Garage →
Keep driving?
No — stop driving
DIY difficulty
advanced
Estimated cost
$800-$1,600
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What Are the Symptoms of POWERSTROKE-P0606?

  • Stalling
  • No start
  • CEL

What Causes POWERSTROKE-P0606? (Most Likely First)

  • Internal PCM failure Very Likely
  • Excessive moisture at PCM connector Possible

Can I Still Drive with POWERSTROKE-P0606?

No — stop driving. POWERSTROKE-P0606 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 P0606 on a 7.3L Power Stroke?

P0606 on a 7.3L Power Stroke (1994-2003) indicates: PCM Processor Fault. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.

Can I drive with P0606 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 P0606?

Repair cost is typically $800-$1,600 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-P0606?

  1. Inspect PCM connector for corrosion (cab leaks on OBS trucks are common).

  2. Replace PCM if the fault persists with good power/ground.

Sources 1

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

  • SAE J2012Diagnostic Trouble Code Definitions (defines P0606 as a generic OBD-II code)

P0606 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 P0606 Duramax critical ECM/PCM Processor Fault

Which Vehicles Commonly Get POWERSTROKE-P0606?

  • 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

Explore More

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

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