Oxygen Sensor/Air Fuel Ratio Sensor Drive Cycle 2

Fig 1: Drive Cycle Pattern 2

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Preconditions  The monitor will not run unless:
   • MIL is OFF
2. Drive Pattern 
   1. Connect the hand-held tester or OBD II scan tool to DLC3 to check monitor status and preconditions (refer to step "A").
   2. Start the engine and allow it to idle for 2 minutes or more.
   3. Drive the vehicle at 40 to 70 mph (64 to 112 km/h) at least for 150 seconds.
   4. Stop the vehicle and allow the engine to idle for 10 seconds or more.
   5. Drive the vehicle at 25 to 40 mph (40 to 64 km/h) at least for 40 seconds.
   6. Stop the vehicle and allow the engine to idle for 10 seconds or more.
   7. Perform steps (5) and (6) ten times.
   8. Check the readiness monitor status. If the readiness monitor status did not change to "complete", check the preconditions, turn the ignition switch to OFF, and repeat steps (1) to (6).