Operation CHARM: Car repair manuals for everyone.

With Generic Scan Tool




Three Way Catalytic Converter (TWC), Checking

Function test
- 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.
Diagnostic Mode 6: Check Test of Parts Not Constantly Monitored

- End diagnosis and switch ignition off.

If the specified values are exceeded:
- Replace the front exhaust pipe with catalytic converter:
- Vehicles with engine code AFP, item 10,
- Vehicles with engine code BDF, item 14.

Continuation for all vehicles
- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
Clearing Diagnostic Trouble Codes


- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes