KOEO & KOER ON-DEMAND SELF-TEST DTCs

WARNING: This page is about a different car, the 2000 Mercury Mystique, 2000 Ford Pickup, 2000 Ford F550 Super Duty, 2000 Ford F450 Super Duty, and 2000 Ford Contour. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If self-test will not activate or TOOL COMMUNICATION ERROR is received, see TEST QA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V (GASOLINE) article.

Record DTCs in order received. These DTCs indicate current faults in system and should be serviced in order of appearance. Use DIAGNOSTIC TROUBLE CODE REFERENCE CHART to identify appropriate system test to perform.