October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Catalyst Monitor Repair Verification Drive Cycle

Ambient air temperature or IAT PID must read a minimum of 32°F (0°C) to initiate catalyst monitor. Perform VEHICLE PREPARATION. Drive vehicle in stop and go traffic for 20 minutes. Include 6 different constant speeds between 25-45 MPH. Drive on expressway or freeway for an additional 5 minutes. Repeat QUICK TEST .