Drive Cycles

To prevent false indications, the "2 driving cycle detection method" is used for HO2S, fuel metering-related, idle control system, ECT sensor, EGR system, TWC and EVAP control system, and other self-diagnostic functions. When an abnormality occurs, the PCM stores it in its memory. When the same abnormality recurs after ignition switch is turned OFF and ON (II) again, the PCM informs the driver by turning on the Malfunction Indicator Light (MIL).