Inspection/Maintenance Evaporative Emission System Set: Description

WARNING: This page is about a different car, the 2007 Isuzu i-370, 2007 GMC Canyon, and 2007 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

The purpose of this procedure is to satisfy the enable criteria necessary to execute an inspection/maintenance (I/M) system monitor for the evaporative emission (EVAP) system. The system monitor is comprised of the test results from one or more DTCs. This procedure may be used to set the EVAP I/M System Status display on the scan tool to YES. The EVAP I/M System Status display indicates whether or not the control module has completed the system monitor. The system monitor completes when either all DTCs comprising the monitor run and pass, or any DTC comprising the monitor illuminates the malfunction indicator lamp (MIL). If one of the DTCs comprising the monitor is set and the MIL is not illuminated, the necessary trips are required to illuminate the MIL before the monitor will complete.

If the system monitor runs during one drive cycle, 17 hours must elapse, regardless of whether the vehicle is driven or not. Then, the monitor will run again during the next drive cycle in which the conditions for running are met. Once the monitor has run during the third drive cycle, the EVAP I/M System Status display will be updated to YES.