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Engine Control Module|Testing and Inspection > < All Other Service Bulletins for Engine Control Module:|010911|Page 3523

A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)

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Engine Control Module: Description and Operation

Engine Control Module

=> [ Engine Control Module Voltage Supply, Checking ] See: Testing and Inspection/Component Tests and General Diagnostics/Engine Control
Module Voltage Supply, Checking

=> [ Engine Control Module Power Supply Relay, Checking ] See: Testing and Inspection/Component Tests and General Diagnostics/Engine
Control Module Power Supply Relay, Checking

=> [ Engine Component Power Supply Relay, Checking ] See: Testing and Inspection/Component Tests and General Diagnostics/Engine
Component Power Supply Relay, Checking

=> [ Engine Control Module, Replacing ] See: Service and Repair

Engine Control Module (ECM) (J623) regulates fuel injection, Throttle Valve Control Module (J338), oxygen sensor regulation, ignition, knock
control, Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80), engine speed limitation, fuel injectors and On Board Diagnostic
(OBD).

Engine Control Module|Testing and Inspection > < All Other Service Bulletins for Engine Control Module:|010911|Page 3523