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Home › Audi › 2002 › A4 Base, 3.0 T › Repair and Diagnosis › Engine Performance › System › 3.0L - Ignition/Glow Plug System, Engine Codes: AVK, BGN › Ignition/Glow plug system › Ignition system, checking › Engine Control Module (ECM) power supply, checking › Test requirements

Test requirements

Fuses for engine electronics OK
See appropriate System Wiring Diagram article.
Battery voltage at least 12.7 V
Alternator OK