Home >> Audi >> 2006 >> A4 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> 1.8L - Engine Controls - On Board Diagnostic (OBD) Engine Code(S): AMB >> On Board Diagnostic (OBD) >> Readiness code >> Readiness code, generating >> Preconditions: >> Operation 14: Read readiness code