OBD-II Drive Cycle

NOTE: The IAT PID must be between 50-100° F (10-38°C) during the OBD II drive cycle to enter into all the OBD II monitors. The FLI PID must be between 15% and 85% at all times.

Drive in stop-and-go traffic with at least 4 idle periods (30 seconds each) while observing the status of the OBD II monitor on the scan tool. If the Exhaust Gas Recirculation (EGR), Heated Oxygen sensor (HO2S), Evaporative Emission (EVAP), Secondary Air (AIR) (if applicable) or catalyst efficiency monitor have not completed, drive on the highway at a constant speed over 40 MPH (64 km/hr), not to exceed 65 MPH (104 km/hr) for up to 15 minutes. Heavy accelerations, sudden decelerations and wide open throttles are not recommended. If the scan tool sends out a 3 pulse beep at any time, the OBD II drive cycle has completed.

NOTE: Vehicles equipped with the EVAP purge flow system or EVAP vapor management flow system monitor do not require EVAP monitor completion to clear the DTC P1000. See appropriate monitor under ON BOARD DIAGNOSTIC-II MONITOR . If the Exhaust Gas Recirculation (EGR), Heated Oxygen Sensor (HO2S), Evaporative Emission (EVAP) or catalyst efficiency monitor has not completed, perform the corresponding monitor verification drive cycle in this section.

Bring the vehicle to a stop and retrieve continuous memory DTCs to verify the DTC P1000 has been erased. See QUICK TEST .