Test Description

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

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

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