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Home >> Buick >> 1995 >> Roadmaster Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Basic Ignition System Checks (C-4) >> OPTI-Spark >> Ignition Coil Power Source

Ignition Coil Power Source

Turn ignition on. Check for battery voltage on Pink/Black wire to ignition coil. If battery voltage is not present, check for blown 10-amp COIL fuse. If fuse is okay, check for open between fuse and ignition coil.