audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Engine Control Module|Testing and Inspection > < Engine Controls - Low Power/Won't Move After Stopping|Page 3201
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Engine Control Module: Description and Operation

Engine Control Module

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

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

=> [ CAN-Bus Terminal Resistance, Checking ] See: Computers and Control Systems/Testing and Inspection/Component Tests and General
Diagnostics/CAN-Bus Terminal Resistance, Checking

Motronic 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 through fuel injectors or Engine
Component Power Supply Relay (J757) as well as On Board Diagnostic (OBD).

Engine Control Module|Testing and Inspection > < Engine Controls - Low Power/Won't Move After Stopping|Page 3201