PCM Memory Check Sum Error
The POWERSTROKE-P0601 (Power Stroke) diesel fault code means: PCM Memory Check Sum Error. This is a moderate severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- advanced
- Estimated cost
- $100-$1,400
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Common Symptoms
- CEL
- Intermittent running
Probable Causes (Ranked by Likelihood)
- Corrupted PCM flash Likely
- Internal PCM fault Likely
Step-by-Step Diagnostic Procedure
Reflash with latest calibration.
Replace PCM if reflash fails.
Frequently Asked Questions
What is P0601 on a 7.3L Power Stroke?
P0601 on a 7.3L Power Stroke (1994-2003) indicates: PCM Memory Check Sum Error. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0601 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 P0601?
Repair cost is typically $100-$1,400 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
P0601 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: