Monitors, Trips, Drive Cycles and Readiness Codes

OBDII (EURO STAGE III OBD) Trip - A vehicle start and drive cycle such that all once per trip diagnostic monitors have run.

Key Start - A vehicle start and run cycle of at least 20 seconds.

Warm-up Cycle - A vehicle start and run cycle such that the engine coolant must rise to at least 71 °C (160 °F) and must rise by at least 4.4 °C (40 °F) from initial start up. To count as a warm-up cycle, no DTC may occur during the cycle.