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Home >> Buick >> 2001 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L & 3.4L >> Diagnostic Tests >> DTC P0601: Pcm Internal Program Fault >> Code Enable Criteria

Code Enable Criteria

If PCM detects an internal program fault (check sum error), DTC P0601 will set.

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