Touareg 2 V6-3.6L (BHK) (2008)
Catalytic Converter: Testing and Inspection
Three Way Catalytic Converter, Checking
Test requirements
‹› Battery voltage at least 12.5 volts.
‹› Oxygen Sensors OK.
‹› No leaks or damage to exhaust system.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to --> [ Preliminary Check ] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Function test
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Perform the function test in Diagnostic Mode 06. Refer to --> [ Diagnostic Mode 06 - Read Test Results for Specific Diagnostic Functions ] See:
Powertrain Management/Computers and Control Systems/Testing and Inspection/Mode 6 Data.
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End diagnosis and switch the ignition off.
If the specified values are exceeded:
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Check the exhaust system for leaks.
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If necessary, repair the leak in the exhaust system.
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Erase the DTC memory. Refer to --> [ Diagnostic Mode 04 - Erase DTC Memory ] See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes.
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Perform a road test to verify Repair.
If the DTC does not return:
Repair complete, Generate readiness code. Refer to --> [ Readiness Code ] See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes.
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End diagnosis.
If no leaks are found in the exhaust system:
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Replace the catalytic converter including front exhaust pipe. --> Engine, Mechanical 26 Catalytic Convertors, Removing and Replacing.
Final procedures
After the Repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to --> [ Diagnostic Mode 04 - Erase DTC Memory ] See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes.
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/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes.
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.
End of diagnosis.