Three Way Catalytic Converter (TWC), checking

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Function test

Select the measuring value "Test-ID 01: Catalytic converter" and check whether the specified values are being reached. Refer to Diagnostic mode 6: Check test results of components that are not continuously monitored
End diagnosis and switch ignition off.

If the specified values are exceeded:

Vehicles with engine codes AFP and BDF

Replace the front exhaust pipe with catalytic converter:

Vehicles with engine code AFP. Refer to Exhaust manifold, front exhaust pipe with Three Way Catalytic Converter (TWC) and attachments (vehicles with engine code AFP) , item 10
Vehicles with engine code BDF. Refer to Exhaust manifold, front exhaust pipe with Three Way Catalytic Converter (TWC) and attachments (vehicles with engine code BDF) , item 14

Vehicles with engine code BJS

Replace double catalytic converter. Refer to Exhaust manifold, front exhaust pipe with double catalytic converter and attachments (vehicles with engine code BJS) , item 11

Continuation for all vehicles

Erase DTC memory of Engine Control Module (ECM). Refer to Diagnostic mode 4: Reset/erase diagnostic data
Generate readiness code. Refer to Readiness code, generating