Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

1. 1
   
   Make sure you perform the I/M System Check before performing this test. Failure to do so may result in difficulty updating the status to YES.
2. 2
   
   This step is to run the Heated Oxygen Sensor (HO2S) Heater tests and Evaporative Emission (EVAP) System tests.
3. 3
   
   This step runs the catalyst test. The catalyst test runs during the specified cruise period.
4. 4
   
   This step is to sets up the Oxygen Sensor (O2S) tests. Test runs during the idle period immediately following a cruise period that meets a minimum calibrated RPM and time period.
5. 5
   
   This step runs the O2S tests and EVAP tests. Test runs during the idle period immediately following a cruise period that meets a minimum calibrated RPM and time period.
6. 6
   
   Perform the individual system test for any of the systems that do not update to YES.
7. 7
   
   The I/M System Status only reports on whether or not a diagnostic has run, not what the outcome of the test was. If any emission related DTC sets after the tests are complete, the DTC will require diagnosis.