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Ron Z.
Ron Z., - GMC Tech -
Category: GM
Satisfied Customers: 18683
Experience:  18+yrs experience. State Inspector & GM Diagnostics/Repair
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2005 GMC: P0601 INT Cont Module memory check sumEngine..Reduced Power

Resolved Question:

2005 GMC Canyon
Diag Code-P0601 INT Cont Module memory check sum
Engine shuts down and "Reduced Power" displayed in dash. After about a minuit the engine will start again and proccess continues??? Is this a definate ECM????????
Submitted: 7 years ago.
Category: GM
Expert:  Ron Z. replied 7 years ago.

Unfortunately, this is the p-code for an internal PCM failure.


DTC P0601

This diagnostic code applies to internal microprocessor integrity conditions within the powertrain control module (PCM).


The only repair for the dreaded P0601 is a PCM replacement.

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