Performing Self-Test

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

To perform self-test, turn ignition switch to OFF position. Ensure test equipment is properly attached. Program scan tool using the following steps:

Select VEHICLE & ENGINE SELECTION menu.
Select NEW VEHICLE, YEAR & MODEL.
Select DIAGNOSTIC DATA LINK.
Select POWERTRAIN CONTROL MODULE.
Select DIAGNOSTIC TEST MODE.
Select KOEO ON-DEMAND SELF-TEST.
Turn ignition switch to ON position.
Follow operating instructions from scan tool menu.
Record DTCs and perform appropriate system test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . After KOEO on-demand self-test is complete, cycle ignition switch before performing other self-tests or driving vehicle.