Three Way Catalytic Converter, Checking

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
- Perform a preliminary check to verify the customers complaint. Preliminary Check

Function test
- Perform the function test in Diagnostic Mode 06. 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. Diagnostic Modes 01 - 09.
- Perform a road test to verify Repair.

If the DTC does not return:
Repair complete, Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes
- End diagnosis.

If no leaks are found in the exhaust system:
- Replace the catalytic converter including front exhaust pipe.

Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:

1. Check the DTC memory. Diagnostic Modes 01 - 09
2. If necessary, erase the DTC memory. Diagnostic Modes 01 - 09
3. If the DTC memory was erased, generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes

End of Diagnosis