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Home >> Cadillac >> 1990 >> Allante F7/ME9 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Diagnostic Procedures >> Ignition Systems >> High Energy Ignition (H.E.I.) Distributor >> Ignition Coil Power Source

Ignition Coil Power Source

Turn ignition on. Using voltmeter, check voltage between terminal "B" and ground of each ignition coil plug. Battery voltage should exist.