KOEO & KOER On-Demand Self-Test Codes
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2001 Mercury Sable, 2001 Mercury Mountaineer, 2001 Mercury Grand Marquis, 2001 Mercury Cougar, and 2001 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
Record DTCs in order received. These DTCs indicate current faults in system and should be serviced in order of appearance. Use DIAGNOSTIC TROUBLE CODE DEFINITIONS table to identify appropriate system test to perform.