Three Way Catalytic Converter, Checking

Test Requirements 

• Battery voltage at least 12.5 V.
• Oxygen Sensors OK.
• No leaks or damage to exhaust system.

Test Procedure 

-- Perform a preliminary check to verify the customer's complaint. Refer to PRELIMINARY CHECK

Function test

-- Perform the function test in Diagnostic Mode 06. Refer to DIAGNOSTIC MODE 06 - READ TEST RESULTS FOR SPECIFIC DIAGNOSTIC FUNCTIONS .

-- End diagnosis and switch the ignition off.

If the specified values are exceeded:

-- Check the exhaust system for leaks.

-- If necessary, repair the leak in the exhaust system.

-- Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

-- Perform a road test to verify repair.

If the DTC does not return:

Repair complete, Generate readiness code. Refer to READINESS CODE .

-- End diagnosis.

If no leaks are found in the exhaust system:

-- Replace the catalytic converter including front exhaust pipe. Refer to LEFT FRONT EXHAUST PIPE WITH CATALYTIC CONVERTER .

After the Repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
2. If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
3. If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .