Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Lexus LFAFACTORY OEM SERVICE PROCEDURE
Catalytic Converter Drive Cycle 6
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the engine off and wait for at least 30 seconds.
- Turn the engine switch on (IG) and turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Monitor / Current Monitor.
- Check that Catalyst Efficiency / Current is Incomplete.
- Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher [A].
- Drive the vehicle at approximately 60 km/h (37 mph) for 10 minutes or more [B].CAUTION: When performing the confirmation driving pattern, obey all speed limits and traffic laws.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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