Performing Self-Test

To perform self-test, turn ignition off. 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 KOEO INJECTOR ELECTRICAL SELF-TEST.
Turn ignition on.
Follow operating instructions from scan tool menu.
If any Injector Driver Module (IDM) module DTCs are present, note and clear DTCs. IDM stores both history and hard DTCs. To ensure IDM is a hard DTC, repeat KOEO ON-DEMAND SELF-TEST .
Record DTCs and perform appropriate circuit test. See DIAGNOSTIC TROUBLE CODE (DTC) REFERENCE CHART . After test is completed, cycle ignition switch before performing other self-tests or driving vehicle.

NOTE: If no DTCs are present and injector self-test aborts while trying to perform test, go to CIRCUIT TEST AB , step 29).