audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Heated Oxygen Sensor after Catalytic Converter, Checking|Page 3391 > < Heated Oxygen Sensor after Catalytic Converter, Checking|Page 3389
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Replace the Engine Control Module (-J623-). 

Assembly is performed in reverse order of removal, note the following: 

After repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 03 - Read DTC Memory. 

2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Powertrain Management/Computers and

Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Modes 01 - 09/Diagnostic Mode 04 - Erase DTC Memory.

3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Powertrain Management/Computers and Control

Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes/Readiness Code.

Heated Oxygen Sensor after Catalytic Converter, Checking|Page 3391 > < Heated Oxygen Sensor after Catalytic Converter, Checking|Page 3389