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.

Check Gas Cap Message

The PCM sends a class 2 message to the driver information center (DIC) illuminating the Check Gas Cap message when any of the following occur:

A malfunction in the EVAP system and a large leak test fails
A malfunction in the EVAP system and a small leak test fails