Evaporative Emissions (EVAP) Control System Monitor & Readiness Code: Procedure

Connect the HDS or the scan tool to the vehicle's data link connector (DLC).
Start the engine.
Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. After about 2.5 miles (4.0 km), the readiness code should switch from incomplete to complete.
If the readiness code is still set to incomplete, check for a temporary DTC. If there is no DTC, one or more of the enable criteria were probably not met; repeat the procedure.