Catalyst Monitor Repair Verification Drive Cycle

1. Make sure that the inlet air temperature (or ambient air temperature) is above -18 °C (0 °F), then refer to Step 3 of the Vehicle Preparation for OBD II Drive Cycle in this section.

2. Start the engine and drive the vehicle for 25 minutes.
- Drive in stop-and-go traffic for 20 minutes, include six different constant speeds between 40 and 72 kph (25 and 45 mph).
- Drive on expressway or highway for an additional 5 minutes.

3. Rerun Continuous Memory, KOEO and KOER self-tests.