Jetta Sedan V6-2.8L (BDF) (2003)
Catalytic Converter: Testing and Inspection
With Manufacturer's Scan Tool
Catalytic converter, checking
Special tools and equipment
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V.A.G 1551 Scan Tool (or vehicle system tester V.A.G 1552) with cable VAG1551/3
Note: All functions which could previously be performed with V.A.G 1551/1552 can also be performed with the new tester VAS 5051.
Conditions
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Fuses must be OK.
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Battery voltage must be at least 11.5 V.
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If vehicle is equipped with air conditioning, this must be switched off.
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Selector lever must be in position "P" or "N" on models with an automatic transmission.
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Exhaust system between catalytic converter and cylinder head must be free of leaks
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Coolant temperature must be at least 85°CDisplay group 1, display zone 2
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Catalytic converter temperature must be at least 380° Display group 46, display zone 2
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No DTC's may be stored in DTC memory
Refer to Powertrain Management
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Oxygen sensor aging before catalytic converter is OK,
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Oxygen sensor aging after catalytic converter is OK,
Note: The diagnosis will only be ended if the oxygen sensor aging diagnosis before and after catalytic converter is completed successfully first.
Test sequence
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Connect V.A.G 1551 (or V.A.G 1552). Start engine and select "Address word" 01 of engine control module.
Refer to Powertrain Management
Indicated on display
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Press keys 0 and 4 for function "Initiate basic setting" and confirm entry with Q key.