P0601 Internal Memory Checksum Invalid

P0601 Code - Internal checksum for software failed, does not match calculated value. The MIL light illuminate. Possibel cause the Powertrain Control Module (PCM). Diagnose any CMP or CKP sensor faults before continuing, check for intermittent or loose CMP/CKP connections.


The Powertrain Control Module is reporting internal errors, view repair to continue.
Repair, replace and program the Powertrain Control Module (PCM)

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