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Home >> GMC >> 1998 >> Forward Control 4.3 W, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L >> Diagnostic Trouble Codes >> DTC P1621 - VCM EEPROM Performance >> Notes

DTC P1621 - VCM EEPROM Performance: Notes

NOTE: For circuit reference, see WIRING DIAGRAMS - 4.3L article.

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