Performing KOER Self-Test

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 PCM-POWERTRAIN CONTROL MODULE.
• Select DIAGNOSTIC TEST MODE.
• Select KOER ON-DEMAND SELF-TEST.
• Start engine and allow to idle.
• Follow operating instructions from scan tool menu.
• Record DTCs and perform appropriate system test. See DIAGNOSTIC TROUBLE CODE REFERENCE CHART . After test is complete, cycle ignition switch before performing other self-tests or driving vehicle.