Passat Wagon L4-1.8L Turbo (AWM) (2003)
Catalytic Converter: Testing and Inspection
Three Way Catalytic Converter (TWC), checking
Special tools and equipment
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VAG1551 scan tool (or VAG1552 mobile scan tool) with VAG1551/3 cable
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VAG 1788/10 RPM adjuster
Test sequence
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Connect VAG 1551 scan tool (VAG1552). Start engine and select the Engine Control Module (ECM) using address word 01. Connecting scan
tool and selecting Engine Control Module (ECM):
Indicated on display:
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Press buttons -0- and -4- to select "Basic Setting" function 04. Press -Q- button to confirm input.
Indicated on display:
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Use VAG1788/10 RPM adjuster to adjust engine RPM to between 2300 and 2500 RPM:
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Press buttons -0-, -3- and -4- to select "Display group number 34". Press -Q- button to confirm input.