Test II

During this test, PCM will activate AIR pump during "closed loop" operation. When AIR is activated, PCM will monitor the HO2S voltages and short term trim values for both banks of the engine. If PCM determines that HO2S voltages for both banks does not respond as expected during the tests, DTC P0410 will set. If only one sensor responded, PCM will set either a DTC P1415 or P1416 to indicate which bank the AIR system is inoperative.