volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Catalytic Converter, Checking|Page 3896 > < Emissions - Possible MIL ON/Cat Converter DTC's Set|Page 3893
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Catalytic Converter: Testing and Inspection
Catalytic Converter, Checking

Catalytic Converter, Checking

Function test

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Select the measuring value "Test-ID 01: Catalytic converter" and check whether the specified values are being reached, Diagnostic mode 6: Check
test results of components that are not continuously monitored. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 6: Check Test Of Parts Not Constantly Monitored

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End diagnosis and switch ignition off.

If the specified values are exceeded:

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Replace catalytic converter.

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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase
Diagnostic Data

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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes

Catalytic Converter, Checking|Page 3896 > < Emissions - Possible MIL ON/Cat Converter DTC's Set|Page 3893