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.
Confirmation Driving Pattern
HINT:
Performing this confirmation driving pattern will activate the catalyst efficiency monitor. This is very useful for verifying the completion of a repair.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON 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 (38 mph) for 10 minutes or more [B].
HINT:
- Drive the vehicle while keeping the engine load as constant as possible.
- The monitor item will change to Complete as the catalyst efficiency monitor operates [C].
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Check if any DTCs (pending DTCs) are stored.
HINT:
If the monitor does not change to Complete and no pending DTCs are stored, perform the following procedure.
- Drive the vehicle at a speed between 75 and 100 km/h (47 and 63 mph) for 10 minutes or more [D].
HINT:
- Drive the vehicle while keeping the engine load as constant as possible.
- The monitor item will change to Complete as the catalyst efficiency monitor operates [E].
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Check if any DTCs (pending DTCs) are stored.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
