Internal Control Module Memory Check Sum Error
The POWERSTROKE-P0601 (Power Stroke) diesel fault code means: Internal Control Module Memory Check Sum Error. This is a moderate severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- advanced
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What Are the Symptoms of POWERSTROKE-P0601?
- Check Engine Light on
- Possible no start or stalling
- Possible erratic running or loss of stored settings
What Causes POWERSTROKE-P0601? (Most Likely First)
- Internal control module fault High
- Poor power or ground supply to the module Moderate
- Corrupted software, often after an interrupted programming event Moderate
Can I Still Drive with POWERSTROKE-P0601?
No — stop driving. POWERSTROKE-P0601 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 does P0601 mean on a Power Stroke?
P0601 means Internal Control Module Memory Check Sum Error. The control module has found a fault in its own stored memory during a self-test.
Is P0601 a Power Stroke-specific code?
No. P0601 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions Ford uses to set it on its diesels are in Ford service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P0601?
Check battery voltage and the module power and ground circuits first.
Check whether a software update is available for the module.
Reprogram the module before replacing it, and replace it only if the code returns.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0601 as a generic OBD-II code)
P0601 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
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