Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la
If it fails: lemon-manuals.org.ua

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Catalyst Monitor Repair Verification

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.
2. Start the engine and drive the vehicle for 25 minutes.
a. Drive in stop-and-go traffic for 20 minutes, include six different constant speeds between 40 and 72 km/h (25 and 45 mph).
b. Drive on expressway or highway for an additional 5 minutes.
3. Rerun Quick Test.