PCM Processor Fault
The POWERSTROKE-P0606 (Power Stroke) diesel fault code means: PCM Processor Fault. This is a moderate severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- advanced
- Estimated cost
- $800-$1,600
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Common Symptoms
- Stalling
- No start
- CEL
Probable Causes (Ranked by Likelihood)
- Internal PCM failure Very Likely
- Excessive moisture at PCM connector Possible
Step-by-Step Diagnostic Procedure
Inspect PCM connector for corrosion (cab leaks on OBS trucks are common).
Replace PCM if the fault persists with good power/ground.
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.
P0606 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: