Fast Pass Test
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
During the fast pass the HO2S 2 voltage is between 381-525 mV and less than 180 samples within the first 1 minute and 30 seconds of engine run time. If the fast pass test does not report a pass then the regular test is initiated.
Regular Test
- During the regular test the HO2S 2 voltage is between 390-520 mV for at least 1,080 out of 1,200 samples.
- Each sample is 100 ms during both tests.
- This diagnostic runs once per trip.