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Home >> GMC >> 2000 >> Jimmy 2D Utility, RWD, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P1621: Control Module Long Term Memory Performance >> Notes

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DTC P1621: Control Module Long Term Memory Performance: Notes

NOTE: For circuit reference, see WIRING DIAGRAMS article.

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