Oxygen Sensor/Air Fuel Ratio Sensor Drive Cycle 14

Fig 1: Drive Cycle Pattern 14

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Drive Pattern For Front A/F Sensor And HO2 Sensor 
   1. Connect Techstream to the DLC3.
   2. Turn the power switch on (READY).
   3. Turn the tester on.
   4. Clear the DTCs.
   5. Warm up the engine until the engine coolant temperature reaches 75°C (167°F) or higher.
   6. Drive the vehicle at between 40 mph (60 km/h) and 75 mph (120 km/h) for 10 minutes or more.
   7. Repeat the following drive pattern 3 times or more:
      • Drive the vehicle at 75 mph (120 km/h).
      • Release the accelerator pedal and stop the vehicle.
2. Monitor Status  
   1. Check the Readiness Monitor status displayed on the tester.
   2. If the status does not switch to Complete, perform the Drive Pattern above.