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Home >> Audi >> 2006 >> A4 Base, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> 1.8L - Ignition System, Engine Code(S): AMB >> Ignition System >> Ignition system, checking >> Motronic Engine Control Module (ECM) power supply, checking >> Test requirements:

Test requirements:

  1. Fuses for engine electronics OK

    See appropriate System Wiring Diagrams article.

  2. Battery voltage at least 12.7 V
  3. Alternator OK
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