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Home >> Buick >> 1996 >> Century Custom >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Tests W/Codes - 3.1L >> Diagnostic Trouble Codes >> DTC P1639 - 5-Volt Reference "B" Circuit >> Notes

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DTC P1639 - 5-Volt Reference "B" Circuit: Notes

NOTE: For circuit reference, see DTC P1635 schematic.

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